Soundcard & Speakers guide

Though we don’t see new Soundcards coming out as fast as we do Graphics cards they have made several advancements in recent times, such as commonplace 5.1 output & better 3D positioning algorithms.

This guide will take you through everything from basic troubleshooting of playback problems, to Speaker positioning, Soundcard specific settings & more. Thanks to Mikael from 3D SoundSurge for answering a few questions I had, or pointing out errors.

 

Troubleshooting

It is essential to have the latest drivers for you Soundcard. You can find links to the relevant hardware manufacturers on our Drivers page (Such as Creative, Turtle Beach & Philips). These can solve many audio problems you may have encountered or generally include other optimizations/fixes over earlier releases.

You should also have the latest Chipset drivers for your Motherboard, & perhaps even the latest BIOS too. This is highly recommended for (Although not limited too) those with VIA Chipset based motherboards. Once more, you can find the relevant links on our Drivers page & also in our OS Updates - Chipset Updates section.

Now install the latest DirectX on your system if not already installed. While this is required by some Games already, it also features numerous other updated components, of main concern for Soundcards being the DirectSound & DirectMusic components.

Windows 2000 & 98/98 Second Edition have some problems with non-PCM wave formats, which you’ll most likely experience when it comes to AC-3/DTS pass-through. To fix this you’ll need to install the latest Windows 2000 Service Pack, or in the case of Windows 98 Second Edition – QFE269601 (No update is available for Windows 98 original).

You should also update your Application/Games where possible. Similar to updating your drivers this can also fix audio playback problems or other irregularities. Check the Developer’s Website for the latest Game/Application patch.

If you experience static noise or irregular audio playback, try the following (assuming that installing the latest drivers don’t fix the problems):

1.   Click on Start, Settings, then Control Panel. If you have Windows 2000/Millennium Edition or XP installed note the icon names as shown in brackets below.

2.   Open the Multimedia (Sounds & Multimedia or Sounds & Audio Devices) icon.

3.   Select the Audio tab, select the Advanced Properties (Advanced) button, then the Performance tab.

4.   Move the Hardware acceleration slider to the 2nd notch to the Left (Basic Acceleration).

This procedure does however disable 3D Audio, e.g. DirectSound3D & all reliant extensions, such as EAX. As such this should only be considered a temporary solution to your problems.

 

Universal settings

Regardless of which Soundcard you have installed there are some settings available which are common to all of them. I'll cover these first before moving onto Soundcard specific settings.

Via the Windows Setup tab in the Add/Remove programs applet in the Control Panel, ensure sure that you have Audio compression installed in Windows 9x/Me.

Volume control. You'll need to install some form of volume control on your machine. If your Soundcard’s drivers don’t come with one then install Volume control via Add/Remove Windows Components (Windows Setup) in Add/Remove programs.

Click on Start, Settings, then Control Panel. If you have Windows 2000/Millennium Edition or XP installed note the different names as listed in brackets. Open the Multimedia (Sounds & Multimedia or Sounds & Audio Devices) icon & select the Audio tab.

Playback, Recording & Midi (In Windows 98 or earlier check the seperate Midi tab). From the drop down menus here select the preferred Audio device that you wish to be used for Recording, Playback of Audio & the MIDI Synth engine. You should only need to change the devices here should you have multiple Soundcards installed, or different Midi engines available to use for Midi playback.

Use only preferred (default) devices. When Ticked the Audio devices you have selected previously will be the only devices used for the specific functions selected. Should your system contain only a single capable device for this then you may leave this setting Unticked (As this will be the only device available for use anyway), although should you have multiple devices available you should Tick this setting to limit the Audio function to the selected device only. Otherwise any available device may be used for the specific purpose.

Now in the Sound Playback section select the Advanced Properties (Advanced) button, then the Speakers tab.

From the drop-down menu here select your Audio output mode here as appropriate. NOTE – Some of the options shown here may not be available with certain Operating Systems & selecting some of the choices available here may also interfere with the selections available in your Soundcard’s Drivers.

Now select the Performance tab.

Hardware acceleration. Moving this slider to the 4th notch to the Right will enable Full Acceleration for your Soundcard. This enables complete use of your Soundcards Drivers & features, e.g. 3D Audio.

Sample rate conversion quality. This option shouldn’t effect playback quality at all on most systems (Thanks Mark), nor as a result will it affect performance either. To ensure best sampling rate conversion quality set this placebo to Best sample rate converter.

 

Digital CD Playback

By default when Audio CDs are played they are converted from Digital to Analog by the respective CD/DVD drives DAC (Digital-to-Analog Converter) before being sent to the Soundcard. By enabling digital CD audio playback this process occurs on the Soundcards DAC instead, most new Soundcards have a better quality DAC than an optical drive will & as a result CD Audio playback quality can be improved. To enable this feature on your CD\DVD drive, take the following steps depending on your Operating System:

 

Windows 9x

Click on Start, Settings, Control Panel. Open the Multimedia applet. Select the CD Music tab.

Enable digital CD audio for this CD-ROM device. Tick this setting to enable the Soundcards DAC to convert CD Audio rather than the drives DAC. Untick this setting should you experience problems with Audio CD playback as a result. NOTE – This process can reduce system performance slightly, although this should not be a concern to you unless you are a very old system, or very slow CD\DVD drive. More than likely you won’t even notice difference. Also, should you find this option greyed out then check out this Microsoft article, which should help you to enable it (Thanks to Roger Sinnott for the link).

 

Windows 2000/XP

Right click on My Computer, select Properties then select the Hardware tab followed by the Device Manager button. Expand the DVD/CD-ROM drives tree & Right click on the respective drive & select Properties, then the Properties tab.

Enable digital CD audio for this CD-ROM device. Tick this setting to enable the Soundcards DAC to convert CD Audio rather than the drives DAC. Untick this setting should you experience problems with Audio CD playback as a result. NOTE – This process can reduce system resources slightly, although this should not be a concern to you unless you are a very old system, or very slow CD\DVD drive. On new systems you won’t even notice the slightest difference.

 

Disabling Sensaura logo

Those of you with Sensaura based Soundcards may have noticed that when loading certain EAX, DirectSound3D or A3D Games/Applications that a short Sensaura splash screen is displayed as 3D Sound support is queried for, e.g. Aureal Minerva or Unreal Tournament. This is no doubt a minor annoyance to most of you but can easily be disabled. Click on Start, Run, type in regedit & hit Enter. Now open to the following registry key [HKEY_USERS\.DEFAULT\Software\Sensaura\Audio3D\Settings].

Right click on the SplashScreen entry & select Modify. Changing the value (Hexadecimal or Decimal) to 0 will disable the splash screen from being launched.

Speaker/Subwoofer Positioning

The placement of the Speakers & Subwoofer is a highly important factor to consider for optimizing Audio playback quality. If you’re willing to spend a small amount of time setting these up correctly you may well be surprised at the improvement you can get. (NOTE - Images used are taken from my PCWorks manual).

2 Speakers. While positioning the Speakers it would be wise to have some Audio playback going on so as you can instantly gauge the changes in perceived Audio output as their position is changed. Both speakers should be placed an equal distance (& angle, i.e. One should not be positioned further back than another) from your monitor, preferably at around ear height – or tilted towards your head. Depending on the distance they are from you, you may need to aim the speakers at you slightly. The image below illustrates a typical desktop positioning.

After initial positioning try to keep the space between the Speakers & you free of any obstructions so as not to effect sound output.

4 Speakers. Position the 2 Front Speakers as shown above in the previous 2 Speaker section. Positioning the 2 Rear Speakers can be a more awkward prospect however. These Speakers should be placed so as to form a rectangle around you, or as close as your room’s environment will allow for. Similar to before, the Rear Speakers should be placed an equal distance from where you will be seated. Ideally the Rear Speakers will be elevated above you by some means (e.g. Wall/Shelf mounted or Stands), 1’ (12 inches) is generally a good height above ear level to aim for – most Rear Speakers can achieve this as they come with the necessary Tripods. The images below illustrate some common 4 Speaker placements.

     

 

As we’ll discuss later on, you may need to adjust the Volume balance between the Front & Rear Speakers in order to achieve some manner of equilibrium with their Output levels.

5 Speakers. For positioning of the Front & Rear Left/Right Speakers check the previous section – 4 Speakers. Placement of the Centre speaker is fairly simple. It should be placed on top of your monitor in a central position & near the front of the monitor (So as the monitor casing doesn’t obstruct the output in any way). The Centre Speaker in all instances should be shielded & have some form of adhesive tabs (Or similar) to keep it from sliding off the monitor & protect it against interference. Below is an illustration of a typical 5.1 Speaker system.

Subwoofer. The placement of the Subwoofer will be somewhat dependant on the quality of the Subwoofer itself. Those systems with a poor quality/weak Subwoofer should find the corner of a room to provide a stronger Bass output for the system, while those with higher quality subwoofers should find placing the Subwoofer further away from a corner retains much of the strength without adversely affecting quality. In contrast lower quality Subwoofers may well lose strength when not placed in a corner, while better quality Subwoofers will likely get a boomy output, reducing quality. As we’ll discuss later on you should adjust the volume level of the Subwoofer for best output level (Strong enough to be felt, although not strong enough to overwhelm the rest of the Audio).

The remainder of this guide will cover Soundcard specific settings.

Turtle Beach Santa Cruz

Note – The Videologic SonicFury is a Turtle Beach Santa Cruz & as such it’s recommended that you use the Santa Cruz Drivers with them, as these will be updated first. Click on Start, Settings, Control Panel then open the Santa Cruz/SonicFury applet.

Speaker Mode. From the drop down menu here you should select your Audio output mode as appropriate. The 3 settings available for Headphones merely refer to which output jack you wish to use. The Back Panel Connections image will change accordingly with the Speaker Mode that you’ve selected. This display will help ensure you have your cables connected to the correct jacks.

Versa Jack. In most instances you shouldn't need to change this setting, as the In/Output mode here will be determined by your Speaker Mode selection.

Record Source. You can ignore this setting until you wish to record audio with your Soundcard. Select the appropriate input source from the drop-down menu here whenever you do intend to record. In the Mixer tab ensure that the Record source isn’t muted out too of course.

Pan L/R. This slider can be used to adjust the volume balance between the Left & Right speakers. This is particularly useful if your speakers are not placed equidistant from you. Should you find audio output from one side to seem weaker than the other try changing the position of the slider bar over to the affected side. Otherwise you should leave this set in the Middle.

Fade F/B. This slider can be used to adjust the volume balance between the Front & Rear speakers. This is particularly useful if your speakers are not placed equidistant from you. Should you find audio output from the front/rear seems weaker/lower than the other try moving the position of the slider bar towards the effected speakers. Otherwise you should leave this set in the Middle.

Master Volume. Use the slider bar here to set the global volume level for Audio output. Move this slider to Up to increase the global volume level & vice versa. It is generally recommended that you set these to 70% or thereabouts (Never to 100%) if you intend to adjust the EQ settings (in the EQ tab), this will reduce the amount of amplification the Soundcard can apply to a source, which could cause audio artefacts at higher levels. Although should you not intend to be adjust the EQ settings then you should be able to increase the volume level to a much greater level without compromising quality. This setting is of course affected by the volume level you’ve set your speakers too, so you may need to adjust the volume level of your speakers as well.

Virtual 5.1. Available in 6 Speaker output mode, this is a rather complicated option. If you’re connected to a Speaker system which requires a separate Subwoofer input, e.g. Videologic DigiTheatre LC, you’ll only normally get Subwoofer output via the LFE Channel of AC-3/DTS content in 6 Speaker mode. With this option Ticked the Santa Cruz will generate Bass frequencies from the Front channels & output them to the Subwoofer. On such Speaker systems this will be the only way to generate Subwoofer output during Audio playback, bar that of the LFE channel as previously mentioned. As such it is highly recommended to enable this with such systems. Though now the Centre channel must be considered.

In Virtual 5.1 mode the Centre channel will be generated from both the Front & Rear Speakers & outputted to the Centre Speaker. This isn’t too much of an issue for playback of Stereo sources such as CDs & MP3s. Since the release of the 4142 Build WDM Drivers this feature (Virtual 5.1) will be automatically disabled for any 6 channel content, e.g. Multi-channel wave files, which is a good thing as the source will be played back as created.

However, should you play Games with DirectSound 3D enabled (As such this applies to all DirectSound 3D extensions, e.g. EAX) to maintain the integrity of the 3D Audio positioning it is recommended that you mute the Centre Speaker (Given that it is a mix of both Front & Rear channels). This way you will gain Bass output with your Subwoofer & not lose any 3D positioning quality by muting the Centre channel in Games.

Some people also recommend swapping around the Versa Jack connectors so that you can gain improved Subwoofer output. Though be sure to re-connect them as originally intended if you’re going to play true 6 channel content, e.g. AC-3/DTS decoded by a Software DVD decoder, otherwise these multi-channel audio sources will be outputted to the incorrect Speakers, e.g. in the case of AC-3/DTS track the Centre would be wrongly sent to the Subwoofer & LFE would be wrongly sent to the Centre Speaker.

Centre. This setting is available when 6 Speaker mode is selected. This slider bar controls the volume level of the Centre channel. Move this slider to the Right to increase the Centre channels volume level & vice versa. This volume level is set proportionately to your Master Volume level. Many Speaker systems with a Centre speaker include an externally adjustable volume control for the Centre channel. You should adjust the Centre volume level until it is equal to that of the other channels.

Sub (LFE). This setting is available when 6 Speaker mode is selected. This slider bar controls the volume level of the Subwoofer. Move this slider to the Right to increase the volume level & vice versa. Most Speaker systems with Subwoofers also include an external volume control for the Subwoofer. I'd recommend adjusting these levels until the Subwoofer is at about 1/3 the maximum Volume level, e.g. Set the external control to 1/3 & set this slider to the maximum or whatever combination you prefer. Although you may prefer to set the Higher/Lower depending on your own preferences for bass output.

In the Mixer tab you can independently adjust the Volume/Balance levels for different sources.

In the EQ tab you can adjust the level of amplification for a variety of a variety of audio frequency ranges. Comprising the Bass (250Hz – 20Hz), Mid (250Hz - 6kHz) & Treble (6kHz - 20kHz) ranges, this allows far greater tuning capabilities than most other Soundcards, which generally offer only basic Tone Control. Adjusting these frequencies can noticeably improve Audio quality for many sources; although this is largely dependant on the Audio source itself (Some may benefit from more Bass, other Treble, etc.). I'd recommend selecting from one of the Presets available then try adjusting the sliders independently until you discover the best sounding positions for yourself.

Now select the Synth tab.

Current Synth Bank. Should you wish to change the location of the default Soundbank file to be used select Browse & navigate to the appropriate directory, otherwise leave it set to Default.

Memory Resident. Tick this setting to force the DLS Soundbank to be cached in system RAM, which can improve MIDI loading times, although will obviously lower the amount of RAM available to other Applications. As such you should leave this setting Unticked unless you require MIDI playback on a regular basis, this will improve overall system performance – especially for those with lower amounts of RAM.

Maximum Hardware Notes. The drop-down menu here allows you to set the maximum number of notes to be generated by the CS4630 DSP during MIDI playback. For best system performance set this to 64.

Maximum Software Notes. The drop-down menu here allows you to set the maximum number of notes to be generated by the CPU during MIDI playback. The maximum number available is 1024, although in most instances the 64 Hardware notes available should be enough. I’d recommend setting this to 128 or 256 as a result. NOTE – Remember more CPU generated notes will result in reduced system performance during playback of such high polyphony files.

Voice Allocation. This specifies the scheme used to silence a previous note & play a new one when the limits for Hardware & Software synthesized voices have been reached. For best performance set this to Dynamic.

Now select the Other tab.

Enable 3D Stereo Enhancement. When Ticked this provides a spatial enhancement effect to Audio playback. Essentially this gives a greater 3D feel to audio output. I'd recommend Ticking this setting only if you have Headphones or 2 Speakers selected for the Output Mode. Unticking this setting disables this & it is recommended that you do this if you have select 4 or 6 Speakers as the audio field should already be great enough.

Enable multiple wave out devices. This feature is intended for use with certain high-end applications, as a result you should leave this Unticked unless you use high-end Audio Applications.

Enable CD Digital Input. Tick this option to enable the CD Digital Input header of the Soundcard. If you intend to connect & use an optical drive for CD playback via this header then Tick this option. NOTE - You can still use digital CD playback without needing this setting enabled as shown earlier in the guide. Leave this option Unticked should the circumstances for using this not apply to you.

Sensaura Virtual Ear Headphone Settings. Should you be using Headphones as your Audio Output device then click on New Profile to configure a profile your Headphones. More than likely this won’t have any noticeably beneficial effect during Audio playback, though this will depend a lot on your hearing really.

Acoustic Echo Cancellation. This feature is extremely useful for those who engage in Internet conferencing, with programs such as Microsoft’s NetMeeting. Essentially this feature cancels out the background noise/echo that can be caused by using a microphone when speakers are active. Should you not engage in using such Applications then set this to Never for optimal performance, although those of you who use this feature regularly should set this to When Needed. To avoid any compatibility/detection issues set this to Always, though system performance will be slightly reduced as a result.

Having problems still? Check out the support sites at Videologic or Turtle Beach.

Hercules Crystak Soundcards

Note - Some of the options shown here may not be available depending on the Hercules Soundcard installed. Click on Start, Settings, Control Panel then open the respective Hercules audio configuration applet. Select the Main tab.

Record Source. You can ignore this option unless you'll be recording audio with the Soundcard, in which case select the appropriate source from the drop-down menu.

Speaker Mode. From the drop down menu here select the Speaker system you are connecting to as appropriate (Or the closest available option), e.g. if you have the Creative Inspire 6.1 6700 Speakers then set this to 6.1 Speakers.

Master Volume. This slider bar sets the global volume level for audio output. Move this slider to Up to increase the global volume level & vice versa. It is generally recommended that you set these to 70% or thereabouts if you intend to adjust the Bass/Treble levels (In the EQ tab), this will reduce the amount of amplification the Soundcard can apply to a source, which could cause audio artefacts at higher levels. Although should you not intend to be adjust the bass/treble levels then you should be able to increase the volume level to a much greater level without compromising quality. This setting is of course affected by the volume level you've set your speakers too, so you may need to adjust the volume level of your speakers as well.

Master Volume - Pan L/R. This horizontal slider can be used to adjust the volume balance between the left & right speakers. This is particularly useful if your speakers are not placed equidistant from you. Should you find audio output from 1 side to seem weaker than the other try changing the position of the slider bar over to the affected side. Otherwise you should leave this set in the Middle.

Small Speakers. Tick this option to enable the redirection of bass content to a Subwoofer which requires a separate input, e.g. Videologic DigiTheatre LC, otherwise you will not be able to get any Subwoofer output on such systems (Bar that of the LFE channel in AC-3/DTS & such). On other Speaker systems you can leave this Unticked without issue (As they can create their own Subwoofer content using on-board bass management), though should you have no Subwoofer output currently then try enabling this to see if it fixes your problem. It is also recommended that you Untick this setting during Dolby Digital/DTS playback as they already contain a LFE channel.

You can adjust the volume level per channel using the individual sliders available next to the speaker/subwoofer icons. Use the Test & Sound Rotation options finally to ensure you've configured your speakers correctly.

Now select the Mixer tab. These sliders shown can be used to adjust the volume level of different audio sources, moving a slider Up to increase the volume level of said source & vice versa. It is recommended that you mute any sources you don't intend to use, e.g. Line-In. 

The EQ tab allows you to adjust the level of amplification for a variety of frequency ranges. Comprising the Bass (20Hz - 250Hz), Mid (250Hz - 6kHz) & Treble (6kHz - 20kHz) ranges, this allows for far greater tuning capabilities. Adjusting these frequencies can improve quality for many sources; although this is largely dependant on the source itself, e.g. some benefit from increased Bass & so on.

Now select the Other tab.

3D Audio Acceleration. This setting determines support for DirectSound 3D & supported DirectSound 3D extensions, options available being;

  • Maximum. This options enables full 3D hardware support of the Soundcard for DirectSound 3D & supported DirectSound 3D extensions (A3D, EAX 1.0/2.0, I3DL2, Sensaura Macro FX, Sensaura Zoom FX, Sensaura MultiDrive, Sensaura 3D & Sensaura Environment FX). This is the recommended setting for full 3D audio capabilities in games.

  • High. This option enables support for DirectSound 3D though disables support of supported DirectSound 3D extensions - A3D, EAX 1.0/2.0, I3DL2, Sensaura Macro FX, Sensaura Zoom FX, Sensaura MultiDrive, Sensaura 3D & Sensaura Environment FX. This is recommended should you wish to have 3D audio positioning in supported games, though not wish to use DirectSound 3D extensions, which may lead to reduced performance or other compatibility issues with certain games.

  • Off. This option disables DirectSound 3D & DirectSound 3D extensions support. This should only be used for troubleshooting purposes.

MP3 Hardware Acceleration. Available with CS 4630 DSP based Soundcards, e.g. original Game Theater XPs, this enables onboard decoding of a single MP3 via the DSP which should as a result provide lower CPU utilization. Beyond the DSP limitation, hardware MP3 decoding also has a few other restrictions, it is only available when using Windows Media Player 6.4 or for a single MP3 with Voyetra AudioStation 4.x. Software decoders tend to offer greater flexibility & audio quality (generally), as such I'd recommend leaving this Unticked to ensure the DSP cannot perform MP3 decoding & a software decoder will be.

Enable Stereo expansion. When Ticked this applies a spatial enhancement effect to audio playback, essentially yielding a greater 3D feel to output. I'd recommend Ticking this setting only if you have Headphones or 2 Speakers selected for your output mode. Unticking this setting disables this effect & is recommended that you do this if you have a 4 Speaker system or greater as the audio field should already be large enough.

Digital output configuration. This setting controls how the digital output(s) on the Soundcard (Coaxial &/or Optical) are to be used. Options available being;

  • Mains outputs. This option specifies that audio is sent over the S/PDIF Output, which is recommended should neither of the other 2 options beneath apply to you. Should you encounter audio problems when connected to a MiniDisc player try Ticking the MiniDisc Optimal Mode option.

  • PowerDVD software player. This option enables the output of an AC-3/DTS stream to your receiver/decoder via the S/PDIF Output. Despite the title this will work with software decoders other than Power DVD. To use this feature you must also configure your software DVD decoder to S/PDIF Output also.

  • Digital audio source. This option allows you to send a digital audio stream from the S/PDIF Input & output it via the S/PDIF Output, e.g. you may have an external DVD player's S/PDIF Output connected to your Soundcard's S/PDIF Input & the Soundcard's S/PDIF Output to a Dolby/DTS decoder.

Show the Game Theater XP icon on traybar. If you require Headphone auto-detection support Tick this setting, otherwise you can leave this Unticked unless you really need the added convenience.

Having problems still? Check out the Support site at Hercules

Philips PSC 70x series

If you wish to try BETA WDM Drivers for your PSC 70x Soundcard in Windows 98 Second Edition, Me, 2000 or XP then you can download these from 3D SoundSurge (No support is provided although issues can be reported on their Forums, which Philips checks). These are generally newer than the Official ones & generally contain multiple fixes over the Official ones also, be sure to check the Readme before installing of course.

Click on Start, Settings, Control Panel then the Philips Audio applet.

Output Mode. Select your Audio output mode as appropriate for your Speaker/Headphone system. Depending on the option selected, some of the settings listed beneath may be available or unavailable.

QXpander. When Ticked this provides a spatial enhancement effect to Audio playback. Essentially this gives a greater 3D feel to audio output from 2 Speakers. Unticking this setting disables this feature. I'd recommend Ticking this setting if you are using 2 Speakers only.

DVD QSurround. Tick this setting to enable virtual 5.1 DVD playback using 2 Speakers with compatible Software DVD players (Untick QXpander). If your DVD player doesn’t support 5.1 playback then Untick this setting & select QXpander instead.

Expand All. Ticking Expand All for 2-channel Soft-DVD players will expand the output to 4 or 5.1 channels. When playing 4 or 6-channel WAVEFORMATEXTENSIBLE files (Used in many multi-channel wave files) Expand All should be Unticked so that the sounds are outputted from the correct speakers.

DVD SSM. When Unticked the PSC 70x operates in Large Speaker mode, i.e. The Speakers are sent the full frequency & Subwoofer output will be generated using your Amplifier/Decoders built-in Crossover. This is fine assuming there actually is a built-in Crossover in your system to do this, but for those with Speaker systems whose Subwoofer requires a separate input, e.g. Videologic DigiTheatre LC, you’ll only get Subwoofer output via the LFE Channel of AC-3/DTS content. Ticking this option will enable the PSC 70x to filter out bass frequencies from the Speakers & output them to the Subwoofer. On such Speaker systems with a separate Subwoofer input this will be the only way to generate Subwoofer output during Audio playback, bar that of the LFE channel, as previously mentioned.

Balance. This slider can be used to adjust the volume balance between the Left & Right speakers. This is particularly useful if your speakers are not placed equidistant from you. Should you find audio output from one side to seem weaker than the other try changing the position of the slider bar over to the affected side. Otherwise you should leave this set in the Middle.

Fade. This slider can be used to adjust the volume balance between the Front & Rear speakers. This is particularly useful if your speakers are not placed equidistant from you. Should you find audio output from the front/rear seems weaker/lower than the other try moving the position of the slider bar towards the effected speakers. Otherwise you should leave this set in the Middle.

Center. Available in 5.0/5.1 Speaker mode. This slider bar controls the volume level of the Centre channel. Move this slider Up to increase the Centre channels volume level & vice versa. This volume level is set proportionately to your Master volume level. Many Speaker systems with a Centre speaker include an externally adjustable volume control for the Centre channel. You should adjust the Centre volume level until it is equal to that of the other channels.

Master. Use the slider bar here to set the global volume level for Audio output. Move this slider to Up to increase the global volume level & vice versa. It is generally recommended that you set these to 70% or thereabouts if you intend to adjust the Bass/Treble levels, this will reduce the amount of amplification the Soundcard can apply to a source, which could cause audio artefacts at higher levels. Although should you not intend to be adjust the Bass/Treble levels then you should be able to increase the volume level to a much greater level without compromising quality. This setting is of course affected by the volume level you’ve set your speakers too, so you may need to adjust the volume level of your speakers as well.

LFE. This setting is available when 5.1 Speakers mode is selected. This slider bar controls the volume level of the Subwoofer. Move this slider to the Up to increase the volume level & vice versa. Most Speaker systems with Subwoofers also include an external volume control for the Subwoofer. I'd recommend adjusting these levels until the Subwoofer is at about 1/3 the maximum Volume level, e.g. Set the external control to 1/3 & set this slider to the maximum or whatever combination you prefer. Although you may prefer to set the Higher/Lower depending on your own preferences for bass output.

Tone Control Enable. Tick this setting to enable you to adjust the Treble/Bass levels for audio playback. This is essentially a simplified form of Equaliser, which allows you some tone control. Untick this setting to disable adjusting these levels. I’d recommend leaving this Ticked if available (Assuming you wish to spend some time on adjusting these levels).

Adjusting these levels can improve audio quality for many, although depending on the audio that you listen to you may want to reduce/raise these levels for best quality for you.

Treble. This slider bar controls the level of amplification for perceivable higher range audio frequencies (6kHz – 20kHz). Move this slider Up to increase this level & vice versa.

Bass. This slider bar controls the level of amplification for perceivable lower range audio frequencies (250Hz – 20Hz). Move this slider Up to increase this level & vice versa.

Apply Reverb/QMSS/QXpander to External Input Source. This setting provides a way to enhance the audio playback of External sources by using QSound features to enhance playback of over 4, 5.0 or 5.1 Speakers (This feature is automatically enabled for Internal stereo sources, such as .wav files when 4 or 5.1 Speakers is selected).

Now select the S/PDIF tab.

Enable. Should you wish to input external digital audio sources to (only) the Acoustic Edge via the S/PDIF Input jack Tick this setting to enable it. Unticking this setting will disable S/PDIF Input & this is recommended for optimal performance should you not need to connect to an external devices for digital audio input.

Apply QXpander/QMSS. When Ticked this enables the use of QXpander to enhance 2 Speaker Output (As described earlier) of any digital audio played via the S/PDIF Input. In 4, 5 or 5.1 Speaker modes this will enable the use QMSS (QSound Multi-Speaker System) to dynamically up-mix the digital stereo source into 4/5.0/5.1 Channel content. I’d recommend Ticking this setting, particularly if you have 4/5.0/5.1 Speakers select as your Output Mode.

S/PDIF Out. This option allows you to select how the S/PDIF Output of the PSC 70x is to be used. For optimal system performance leave this set to Disabled. If you are connected to a Dolby Decoder you should set this to DVD AC3/DTS Passthrough should you wish to output an AC-3/DTS signal to your decoder during DVD playback. Select any of the other Speaker Channel options instead if needed.

Now select the Effects tab.

Enable. Tick this setting to enable QSound Environmental Modelling support. This enables the use of EAX 1/2 in Applications/Games that support EAX 1/2 & also allows you to use Reverb with non-EAX Audio sources. Untick this setting to disable this support, which isn’t recommended.

Environment. This drop-down menu allows you to enable the use of different environmental (Reverb) presets for Audio playback. If you wish to enable EAX in an EAX supporting Game then set this to None otherwise Audio playback in such Games may be distorted as the inappropriate Audio environment would be being used instead. For non-EAX Audio playback you can set this as you feel necessary, although I’d still recommend setting this to None regardless.

Reverb Level – Audio Applications/ External Input/ S/PDIF Input. These sliders allow you to adjust the strength of the Reverb level for different Audio sources. Moving the slider Up will increase the Reverb strength & vice versa. Adjust these sliders as you see fit, in particular note the Audio Applications slider which you should increase should you find the Reverb level in Games to be rather weak.

Now select the MIDI tab.

Default MIDI Device. This displays which MIDI synthesis engine is to be used for playback of MIDI files.

H/W WaveTable Voices. If you installed Yamaha SXG SoftSynth then 2 Wavetable Synth engines will are available for use by the Philips PSC 70x - WaveTable Synth & Yamaha SXG SoftSynth. The Yamaha SXG SoftSynth is intended for high quality MIDI playback, with multiple simultaneous voices (Utilizing the CPU rather than the Soundcards MIDI engine), WaveTable Synth will provide lowest CPU utilization for optimal performance during MIDI playback (Although Audio quality may not be as good).

If you do wish to use the Hardware Wavetable to play high polyphony MIDI rather than the Yamaha SXG SoftSynth (e.g. If you didn't install it), then you can set this to Better Polyphony.

H/W WaveTable Reverb/Chorus Level. These options allow you to modify the Reverb/Chorus level used during MIDI playback. I’d recommend setting this to As Specified in MIDI File.

In the Speaker Test tab you may check that your Speakers are setup correctly by determining whether or not audio is being played back from the correct Speakers.

Having problems still? Check out Technical Support at Philips.

Creative SoundBlaster Live! & Audigy settings

Click on Start, Settings, Control Panel & select AudioHQ. Open the Mixer applet & select the Advanced Mode button. Note – If using a Live! some of the following options may not appear exactly as shown, if at all.

Speakers. From the drop down menu here select the Speaker system you are connecting to as appropriate (Or the closest available option), e.g. if you have the Creative Inspire 5.1 5300 Speakers (As I do) then set this to 5.1 Speakers.

Digital Output Only. When Ticked a digital audio signal will be sent via the digital output jack to be converted by the DAC onboard the receiver you have connected. This can be beneficial as the receiver may have better quality DACs than the Live!/Audigy does or be subject to less EMI, which in either case should yield optimal audio quality.

The Live!/Audigy can also, unlike other non-Creative Soundcards, send a 2, 4 or 5.1 channel signal (As per the Speakers setting) using the digital output when connected to certain systems, e.g. Inspire 5700 & MegaWorks 510D, using a 4 pole mini-jack (Other systems will merely output this signal as stereo if not supported). As such you may wish to test this option out should be connected to a Creative speaker system using the supplied digital cable. On other non-Creative systems it is only recommended you enable this option should be using a 2/2.1 system with digital input (Though again test this option to check which provides better sound quality). Untick this option if your speaker system features analog inputs only.

Volume. Use the slider bar here to set the global volume level for Audio output. Move this slider to Up to increase the global volume level & vice versa. It is generally recommended that you set these to 70% or thereabouts if you intend to adjust the Bass/Treble levels, this will reduce the amount of amplification the Soundcard can apply to a source, which could cause audio artefacts at higher levels. Although should you not intend to be adjust the Bass/Treble levels then you should be able to increase the volume level to a much greater level without compromising quality. This setting is of course affected by the volume level you’ve set your speakers too, so you may need to adjust the volume level of your speakers as well.

Bass. This slider bar controls the level of amplification for perceivable lower range audio frequencies (20Hz – 250Hz). Move this slider Up to increase this level & vice versa. Press the yellow arrow to reset this to the default level.

Treble. This slider bar controls the level of amplification for perceivable higher range audio frequencies (6kHz –20kHz). Move this slider Up to increase this level & vice versa. Press the yellow arrow to reset this to the default level.

Wave/MP3, MIDI , etc. These sliders can be used to adjust the volume level of different audio sources, moving a slider Up will increase the volume level of a source & vice versa.

Now select the Settings button.

AC-3 decode. Ticking this setting will enable software (CPU) decoding of an AC-3 (Dolby Digital) stream via the Soundcard’s Driver. Should you wish to use an external Decoder Dolby Digital decoder then Untick this setting. This is most useful if you have a Software DVD decoder with poor down-mixing capabilities, or limited Audio output modes (e.g. Only 2 Speaker S/PDIF Output) &/or no external Decoder available. For this feature to work with a Software DVD Decoder you must set the Audio output mode of the Decoder to S/PDIF Output (If it’s available that is), this will enable the Driver to decode/down-mix the AC-3 stream as appropriate for the Speakers mode selected.

Whether or not you enable this feature for DVD playback should of course depend on the Software DVD decoder (More specifically the Audio output modes available in it) you have installed. For best system performance & Audio quality however you should find that an external Dolby Digital Decoder provides best quality (Particularly with more expensive Decoders). That said, if you have no external Dolby Digital Decoder & Games with AC-3 Soundtracks (Or just wish to playback AC-3 encoded audio files with, say, PlayCenter) then it would be well worth enabling this feature.

Bass Redirection. Tick this option to enable the redirection of Bass content to a Subwoofer which requires a separate input, e.g. Videologic DigiTheatre LC, otherwise you will not be able to get any Subwoofer output on such systems (Bar that of the LFE channel in AC-3/DTS & such). On other Speaker systems you can leave this Unticked without issue (As they can create their own Subwoofer content using on-board bass management), though should you have no Subwoofer output currently then try enabling this to see if it fixes your problem. It is also recommended that you Untick this setting during AC-3 playback if AC-3 decode is also enabled as AC-3 already contains a LFE channel. This feature can be further customized using the Crossover Frequency option, described below.

Center Speaker Volume. This setting is available when 5.1 Speakers mode is selected. This slider bar controls the volume level of the Centre channel. Move this slider to the Up to increase the Centre channels volume level & vice versa. This volume level is set proportionately to your Volume level. Many Speaker systems with a Centre speaker include an externally adjustable volume control for the Centre channel. You should adjust the Centre volume level until it is equal to that of the other channels.

Subwoofer Volume. This setting is available when 5.1 Speakers mode is selected. This slider bar controls the volume level of the Subwoofer. Move this slider to the Up to increase the volume level & vice versa. Most Speaker systems with Subwoofers also include an external volume control for the Subwoofer. I'd recommend adjusting these levels until the Subwoofer is at about 1/3 the maximum Volume level, e.g. Set the external control to 1/3 & set this slider to the maximum or whatever combination you prefer. Although you may prefer to set the Higher/Lower depending on your own preferences for bass output.

Crossover Frequency. With Bass Redirection enabled this option becomes available. Using this slider bar you can adjust the crossover frequency (10 – 200Hz), beneath which, such low frequencies will be directed to the Subwoofer. Increasing this value will result in a stronger bass output from the Subwoofer & vice versa. NOTE – Be sure to check your Subwoofers specifications to see what frequencies it can handle also so that you don’t set this too low or too high.

Once you have made your changes select the Close button & then select the Bal/Fade button.

Balance/Fade. By clicking on & dragging the yellow button around you can adjust intended position of a sound source. This is most useful where your speakers aren’t positioned equidistant – as described earlier & you wish to apply a greater Left/Right &/or Front/Rear bias to compensate for this. Press the Default button to reset it to this to the default position.

Re-enter AudioHQ & open the Device Controls applet & select the Sampling Rate tab.

Digital Output Sampling Rate. Depending on the device you will be connecting the Live!/Audigy’s S/PDIF Output to, you should set the sampling rate to the highest which the device supports to ensure highest audio fidelity.

In the Options tab you can select the Audio device to use from the drop-down menu should you have multiple devices installed.

If you are still having problems with your card I suggest visiting Creative's own support site.

Creative SoundBlaster Extigy

Optimising USB performance

Being a USB device, Extigy doesn’t perform as well as a PCI/Integrated Soundcard will, though there are some things you can do to ensure best performance & thus more trouble-free operation of the Extigy.

For starters ensure you have the latest USB Drivers installed for your USB Controller(s). You can find links to these in on our OS Updates page. For add-on, or other, USB Controllers check the Manufacturer’s website.

Now Right click on My Computer & select Properties. Now select the Hardware tab then the Device Manager button (Or Windows 98/Me just the Device Manager tab). Scroll down to the Universal Serial Bus controllers & expand it then right click on the USB controller(s) listed & select Properties.

Ensure that the Extigy (In 2000/XP at least it’ll be named USB Composite Device here) is listed as the only device connected to the controller. Should you find other USB devices listed here along with the Extigy be sure to move them to another USB controller, if at all possible, to ensure the Extigy has access to all available USB bandwidth of that controller.

Finally, Tick Disable USB error detection (Don’t tell me about USB errors in Windows XP) then select OK (This may have no beneficial effect for some, though many report there to be some performance benefit from this).

Configuration

Click on Start, (All) Programs, Creative, Sound Blaster Extigy & select Creative Audio Mixer.

Speakers. When set to Auto the Extigy will automatically determine the Speaker output mode to use based on the outputs currently connected to it, which is recommended. Should this auto-detection not work correctly with your setup though try selecting the appropriate option, e.g. 5.1 Speakers instead.

Volume. Use the slider bar here to set the global volume level for Audio output. Move this slider to Up to increase the global volume level & vice versa. It is generally recommended that you set these to 70% or thereabouts if you intend to adjust the Bass/Treble levels, this will reduce the amount of amplification the Soundcard can apply to a source, which could cause audio artefacts at higher levels. Although should you not intend to be adjust the Bass/Treble levels then you should be able to increase the volume level to a much greater level without compromising quality. This setting is of course affected by the volume level you’ve set your speakers too, so you may need to adjust the volume level of your speakers as well.

Bass. This slider bar controls the level of amplification for perceivable lower range audio frequencies (20Hz – 250Hz). Move this slider Up to increase this level & vice versa.

Treble. This slider bar controls the level of amplification for perceivable higher range audio frequencies (6kHz –20kHz). Move this slider Up to increase this level & vice versa.

Fade. This slider can be used to adjust the volume balance between the Front & Rear speakers. This is particularly useful if your speakers are not placed equidistant from you. Should you find audio output from the front/rear seems weaker/lower than the other try moving the position of the slider bar towards the effected speakers. Otherwise you should leave this in the Middle (Press the Yellow button to set it to this).

Balance. This slider can be used to adjust the volume balance between the Left & Right speakers. This is particularly useful if your speakers are not placed equidistant from you. Should you find audio output from one side to seem weaker than the other try changing the position of the slider bar over to the affected side. Otherwise you should leave this in the Middle (Press the Yellow button to set it to this).

Wave/MP3, MIDI, etc. These sliders can be used to adjust the volume level of different audio sources, moving a slider Up will increase the volume level of a source & vice versa. Adjust this to your own preferences.

Now select the Settings button.

MIDI Chorus. Tick this to enable a chorus effect to be applied when playing MIDI files with the Extigy, which can add some extra depth/richness to the file being played. Unticking this will disable this feature. You might want to test this out before deciding how to set it.

Center Speaker Volume. This setting is available when 5.1 Speakers mode is selected. This slider bar controls the volume level of the Centre channel. Move this slider to the Up to increase the Centre channels volume level & vice versa. This volume level is set proportionately to your Volume level. Many Speaker systems with a Centre speaker include an externally adjustable volume control for the Centre channel. You should adjust the Centre volume level until it is equal to that of the other channels.

Subwoofer Volume. This setting is available when 5.1 Speakers mode is selected. This slider bar controls the volume level of the Subwoofer. Move this slider to the Up to increase the volume level & vice versa. Most Speaker systems with Subwoofers also include an external volume control for the Subwoofer. I'd recommend adjusting these levels until the Subwoofer is at about 1/3 the maximum Volume level, e.g. Set the external control to 1/3 & set this slider to the maximum or whatever combination you prefer. Although you may prefer to set the Higher/Lower depending on your own preferences for bass output.

Bass Redirection. Tick this option to enable the redirection of Bass content to a Subwoofer which requires a separate input, e.g. Videologic DigiTheatre LC, otherwise you will not be able to get any Subwoofer output on such systems (Bar that of the LFE channel in AC-3/DTS & such). On other Speaker systems you can leave this Unticked without issue (As they can create their own Subwoofer content using on-board bass management), though should you have no Subwoofer output currently then try enabling this to see if it fixes your problem.

Now click on Start, Settings, Control Panel & select the Audio Control applet.

Audio Mixing Quality. This sets the mixing rate to be used during audio playback, with options available being 22.05 kHz, 44.1 kHz & 48 kHz. Ideally you should leave this set at 48 kHz for best sound quality, though if you are on a slow CPU, have other USB devices sharing available bandwidth & are experiencing poor performance or crackling during playback try using a lower mixing rate – at that 22.05 kHz would be going a bit extreme though.

Now select the SPDIF tab.

Output Frequency Selection. Depending on the device you will be connecting the Extigy’s S/PDIF Output to, you should set the sampling rate to the highest which the device supports – to ensure best audio quality, e.g. the Inspire 5700 supports 96 kHz. Adjust this accordingly.

Creative SoundBlaster Audigy 2 settings

Click on Start Menu, Programs, Creative, Sound Blaster Audigy 2 & select Creative Speaker Settings.

Speaker/Headphone Selection. From the drop down menu here select the Speaker system you are connecting to as appropriate (Or the closest available option), e.g. if you have the Creative Inspire 6.1 6700 Speakers then set this to 6.1 Speakers.

Synchronize with Control Panel. Tick this option should you wish to synchronize the Speaker/Headphone selection option with that in Window’s Sounds & Audio Devices control panel applet. Should you encounter issues with 3D audio supporting games (generally) resetting your Speaker/Headphone Selection option then try toggling this option to see which resolves it occurring.

Speaker Calibrator Selection. Select the Calibrate button should you wish to use the Creative wizard to help you further fine tune your speaker setup, or not.

Digital Output Only. When Ticked a digital audio signal will be sent via the digital output jack to be converted by the DAC onboard the receiver you have connected. This can be beneficial as the receiver may have better quality DACs than the Audigy 2 does or be subject to less EMI, which in either case should yield optimal audio quality.

The Audigy 2 can also, unlike other non-Creative Soundcards, send a 2, 4 or 5.1 channel signal (As per the Speaker/Headphone Selection setting) using the digital output when connected to certain systems, e.g. Inspire 5700 & MegaWorks 510D, using a 4 pole mini-jack (Other systems will merely output this signal as stereo if not supported). As such you may wish to test this option out should be connected to a Creative speaker system using the supplied digital cable. On other non-Creative systems it is only recommended you enable this option should be using a 2/2.1 system with digital input (Though again test this option to check which provides better sound quality). Untick this option if your speaker system features analog inputs only.

Now select the Bass Management tab.

Subwoofer Volume. This setting is available when 5.1 Speakers mode is selected. This slider bar controls the volume level of the Subwoofer. Move this slider to the Up to increase the volume level & vice versa. Most Speaker systems with Subwoofers also include an external volume control for the Subwoofer. I'd recommend adjusting these levels until the Subwoofer is at about 1/3 the maximum Volume level, e.g. Set the external control to 1/3 & set this slider to the maximum or whatever combination you prefer. Although you may prefer to set the Higher/Lower depending on your own preferences for bass output.

Bass Redirect. Tick this option to enable the redirection of Bass content to a Subwoofer which requires a separate input, e.g. Videologic DigiTheatre LC, otherwise you will not be able to get any Subwoofer output on such systems (Bar that of the LFE channel in AC-3/DTS & such). On other Speaker systems you can leave this Unticked without issue (As they can create their own Subwoofer content using on-board bass management), though should you have no Subwoofer output currently then try enabling this to see if it fixes your problem. It is also recommended that you Untick this setting during Dolby Digital/DTS playback as that already contains a LFE channel. This feature can be customized further using the Crossover Frequency option beneath.

Crossover Frequency. With Bass Redirect enabled this option becomes available. Using this slider bar you can adjust the crossover frequency (10 – 200Hz), beneath which, such low frequencies will be directed to the Subwoofer. Increasing this value will result in a stronger bass output from the Subwoofer & vice versa. NOTE – Be sure to check your subwoofer & satellites specifications to see what frequencies they can handle also so that you don’t set this too low or too high.

Now select the Mixer icon.

Volume. Use the slider bar here to set the global volume level for Audio output. Move this slider to Up to increase the global volume level & vice versa. It is generally recommended that you set these to 70% or thereabouts if you intend to adjust the Bass/Treble levels, this will reduce the amount of amplification the Soundcard can apply to a source, which could cause audio artefacts at higher levels. Although should you not intend to be adjust the Bass/Treble levels then you should be able to increase the volume level to a much greater level without compromising quality. This setting is of course affected by the volume level you’ve set your speakers too, so you may need to adjust the volume level of your speakers as well.

Bass. This slider bar controls the level of amplification for perceivable lower range audio frequencies (20Hz – 250Hz). Move this slider Up to increase this level & vice versa. Press the arrow to reset this to the default level.

Treble. This slider bar controls the level of amplification for perceivable higher range audio frequencies (6kHz –20kHz). Move this slider Up to increase this level & vice versa. Press the arrow to reset this to the default level.

Source. These sliders can be used to adjust the volume level of different audio sources, moving a slider Up will increase the volume level of said source & vice versa.

Now select the Advanced tab.

Front Center Volume. This slider bar is available when 5.1/6.1 Speakers mode is selected & controls the volume level of the centre channel. Move this slider to the Up to increase the centre channels volume level & vice versa. This volume level is set proportionately to the Volume level. Most Speaker systems with a centre speaker include an externally adjustable volume control for the centre channel. Using these 2 controls you should adjust the centre channel’s volume level until it is about equal to that of the other channels.

Rear Center Volume. This slider bar is available when 6.1 Speakers mode is selected & controls the volume level of the centre channel. Move this slider to the Up to increase the rear centre channels volume level & vice versa. This volume level is set proportionately to the Volume level. Some Speaker systems with a rear centre speaker include an externally adjustable volume control for the centre channel. Using these 2 controls you should adjust the centre channel’s volume level until it is equal to that of the other channels.

Subwoofer Volume. This setting is available when 5.1/6.1 Speakers mode is selected. This slider bar controls the volume level of the Subwoofer. Move this slider to the Up to increase the volume level & vice versa. Most Speaker systems with Subwoofers also include an external volume control for the Subwoofer. I'd recommend adjusting these levels until the Subwoofer is at about 1/3 the maximum Volume level, e.g. Set the external control to 1/3 & set this slider to the maximum or whatever combination you prefer. Although you may prefer to set the Higher/Lower depending on your own preferences for bass output.

Balance/Fade. By clicking on & dragging the yellow dot around you can adjust intended position of a sound source. This is most useful where your speakers aren’t positioned equidistant – as described earlier & you wish to apply a greater Left/Right &/or Front/Rear bias to compensate for this. Press the Default button to reset it to this to the default position.

Now click on Start, Settings, Control Panel, select AudioHQ & open Device Controls.

Digital Output Sampling Rate. Depending on the device you will be connecting the Audigy 2’s S/PDIF Output to, you should set the sampling rate to the highest which the device supports to ensure highest fidelity output.

Now select the Decoder tab.

Dolby Digital (AC-3) Decode. Ticking this setting will enable software (CPU) decoding of an AC-3 (Dolby Digital) stream via the Soundcard’s Driver. For this feature to work with a Software DVD Decoder you must set the Audio output mode of the software decoder to S/PDIF Output (If it’s available that is), this will enable the Audigy Driver to decode/down-mix the AC-3 stream as appropriate for your setup. Should you choose this option 3 further options become available.

  • Enable Dynamic Range Compression. When Ticked this will yield suppressed bass & limit the peak volume level during AC-3 playback. This is of course, of most use should you not wish to disturb others nearby as it effectively softens audio playback. To experience the full, uncompressed audio range available Untick this option, which is recommended should you not be disturbing anyone when you playing such content.

  • Enable Dolby Pro Logic. Dolby Pro Logic is a 4 channel audio format (With a limited frequency response of 100Hz – 7kHz for the rear surround channel). Tick this options should you wish to enable the decoding of Dolby Pro Logic sources, which is recommended.

  • Enable Dolby Digital EX. Dolby Digital Surround EX adds an extra surround (rear centre) channel to Dolby Digital. As such it is effectively a 6.1 channel format & thus should you not be connected to a 6.1 Speaker system you can leave this option Unticked without adversely affecting AC-3 decoding capabilities. Should you have a 6.1 system, e.g. Inspire 6.1 6700, then you may Tick this option should you use DVDs which support this format, e.g. Fellowship Of The Ring extended edition, to experience an additional surround channel with such titles.

SPDIF Passthrough. Should you have an external Dolby Digital/DTS decoder available then it would generally be recommended to select this option so that your external hardware decoder can be used for decoding an AC-3/DTS stream, which will also improve system performance as the CPU isn’t be required for decoding.

In the Options tab you can select the Audio device to use from the drop-down menu should you have multiple devices installed.

If you are still having problems with your card I suggest visiting Creative's own support site.

nForce APU

Click on Start, Settings, Control Panel then NVIDIA nForce Control Panel & select the Speaker Setup tab.

Listening mode. From the drop-down menu here select the speaker system you are connecting to as appropriate (Or the closest available option), e.g. if you have the MegaWorks 510D then select 6 Speakers

Analog Output. Tick this option should you be using the nForce's analog outputs to connect to your speaker system. This would be the most appropriate should you lack a Dolby Digital decoder to connect to or your nForce motherboard lacks the DICE (Dolby Interactive Content Encoder). Should you only wish to use the S/PDIF Output then leave this Unticked.

Digital Output. Tick this option to enable the S/PDIF Output of your nForce, which will output audio at 24-Bit, 48kHz. This will provide improved audio quality over analog output given the generally superior DACs that will be using in receivers/decoders. This is also required should you wish to use the DICE feature of your nForce. Should you not have a receiver/decoder to connect to then Untick this option.

Dolby Surround Encoding. Available when using Analog Output, Dolby Surround is comprised of front left/right channels & an additional mono channel used for rear left/right output albeit with a limited frequency range of 100Hz - 7kHz. This extra channel is outputted with a regular 2 channel stereo signal & will only be decoded when connected to a compatible decoder. On other systems only the stereo channel will be outputted. As with most up-mixing technologies it would be best to leave this disabled (Unticked) to ensure optimal audio quality when using analog output, unless perhaps where you actually can connect to a Dolby Surround decoder.

Dolby Digital Encoding. Tick this options should you wish to have the nForce encode audio into a 640kbps Dolby Digital stream. This is of course highly recommended should you be connected to a Dolby Digital decoder via the S/PDIF Output. This will provide improved audio quality over the analog output in most instances (Presuming the decoder features better DACs, which is likely). I would however recommend that you disable (Untick) this when not playing multi-channel audio, such as CDs or MP3s, as Dolby Digital is a lossy audio format & this way you can retain the full quality of such sources, whereas for DirectSound 3D supporting games Dolby Digital encoding should have no noticeable effect on quality giving the generally lower quality sources used. This also is not required should you by sending an AC-3/DTS stream to your decoder either, e.g. via a software DVD decoder.

Create Center Channel. When Ticked this will generate a center channel from non-3D positioned stereo/mono sources. This is of course only recommended should you desire such sources, e.g. CD/MP3 played through that channel in addition to the others. As with most sort of up-mixing features however I'd not particularly recommend this & would leave it Unticked.

Center Channel 3D Pan. When Ticked this enables audio to be positioned & output through the center channel in DirectSound 3D supporting applications/games. You should only Untick this should you not be using a 5.1 speaker system. On 5.1 systems this will allow for improved 3D positioning as sources can be played through the front center channel where appropriate.

Create LFE Channel. Tick this option to enable the redirection of bass content to a Subwoofer which requires a separate input, e.g. Videologic DigiTheatre LC, otherwise you will not be able to get any Subwoofer output on such systems (Bar that of the LFE channel). On other speaker systems you can leave this Unticked without issue (As they can create their own Subwoofer content using on-board bass management), though should you have no subwoofer output currently then try enabling this to see if it fixes your problem. This feature can be further customized using the LFE Crossover Frequency option.

Rear Speaker Phase Shift. Should you find your rear speakers playing audio incorrectly or unusually distorted then try Ticking this to solve the problem, otherwise you may leave this Unticked.

LFE Crossover Frequency. With Create LFE Channel enabled this option allows you to adjust the crossover frequency (50 - 500Hz) to be used, beneath which, such low frequencies will be directed to the Subwoofer. Increasing this value will result in a stronger bass output from the Subwoofer & vice versa. NOTE - Be sure to check your Subwoofers specifications to see what frequencies it can handle also so that you don't set this too low or (more importantly) too high.

Premix Volume Levels. Adjust these sliders to your own preference.

Now select the Main tab.

Equalizer. The equalizer allows you to adjust the level of amplification for various of frequency ranges - comprising the Bass (20Hz - 250Hz), Mid (250Hz - 6kHz) & Treble (6kHz - 20kHz) ranges, thus allowing far greater tuning capabilities. Adjusting these frequencies can improve audio quality for some sources; although this is largely dependant on the source itself (Some may benefit from more bass, others treble, etc.) & your own tastes. Should you want to adjust these levels then Tick then Enable button.

Input. You can basically ignore these option unless you'll be recording audio with the Soundcard, in which case select the appropriate source(s) from the drop-down menu. For optimal performance you should set the Digitized Input to Off as well.

Output. Use the Master slider bar to set the global volume level for Audio output. Move this slider to Up to increase the global volume level & vice versa. It is generally recommended that you set these to 70% or thereabouts if you intend to adjust the Equalizer levels, this will reduce the amount of amplification the Soundcard can apply to a source, which could cause audio artefacts at higher levels. Although should you not intend to be adjust the Equalizer levels then you should be able to increase the volume level to a much greater level without compromising quality. These other sliders can be used to adjust the volume level of different audio sources, moving a slider Up will increase the volume level of said source & vice versa. I'd also recommend Ticking the Mute button for any unused sources as well.

Games

Should you wish to find out how to optimize the playback quality of Audio in Games be sure to check out our extensive Game Tweak Guides section. These will show you all the Menu/Configuration settings you need to know to get the most out of the Audio in these Games, e.g. Medal Of Honor: Allied Assault, Jedi Outcast & Operation Flashpoint, ranging from better sound clarity to getting the best 3D Audio effects & more.

Conclusion

By now you should have successfully configured your Soundcard, Speakers & Games to give you the best Audio quality you can get. This guide will be updated in the future to account for newer Soundcards &/or Driver changes. If you have any problems be sure to check out our Audio & Video Forum or Email me with any Suggestions/Comments about the guide.


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