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Sprint announces HD Voice network, HTC Evo 4G LTE handset

Discussion in 'TechSpot News and Comments' started by Shawn Knight, Apr 5, 2012.

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  1. Shawn Knight TechSpot Staff Posts: 1,664

    Sprint unveiled the HTC Evo 4G LTE smartphone at a media event in New York City on Wednesday. Somewhat overshadowing the actual phone announcement is the fact that it will…

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    Shawn Knight, Apr 5, 2012
    #1

  2. mevans336 TechSpot Enthusiast Posts: 159   +9

    This is known as "Wideband Audio."

    A couple of notes:

    1) The ITU approved this way back in 1987.
    2) The voice range is increased from 300Hz-3.4KHz to 150Hz to 7KHz.
    3) The range your ear can hear is about 20Hz to 20KHz.
    4) The human voice ranges from 80Hz to 14KHz.
    5) The bitrate is (max) 64bps at 14bits.
    6) A CD uses (max) 44KHz at 16-bit at 1.4mbps
    mevans336, Apr 5, 2012
    #2

  3. mevans336 TechSpot Enthusiast Posts: 159   +9

    *64kbps
    mevans336, Apr 6, 2012
    #3

  4. Tygerstrike TechSpot Enthusiast Posts: 758   +71

    Im more excited about a new EVO device myself. The EVO 4g was a very hot phone. I hope the new one will be just as nice.
    Tygerstrike, Apr 6, 2012
    #4

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