Some of the basic features include full unicode support, ReplayGain support and native support for several popular audio formats.

Features:

  • Audio formats supported: MP1, MP2, MP3, MP4, MPC, AAC, Ogg Vorbis, FLAC / Ogg FLAC, WavPack, WAV, AIFF, AU, SND, CDDA.
  • Full unicode support.
  • Advanced tagging capabilities.
  • Support for transcoding all supported audio formats using the Converter component (requires external commandline encoder executables for different output formats).
  • ReplayGain support - both playback and calculation.
  • Customizable keyboard shortcuts.
  • Open component architecture allowing third-party developers to extend functionality of the player.

What's New:

  • Fixed horrible, horrible bug with Ctrl+A “select all” handler in edit boxes stealing altgr+a making it impossible to type “ą”.
  • Made possible to retag MP4/M4A files without 'ftyp' header.
  • Prevented decoding of broken MP3 frames that overlap with apparent file tags.
  • Allowed decoding of WAV files with sample rates above 1MHz.
  • Converter: Made format list sorting remembered.
  • Fixed tags not being read from certain WAV files.
  • Internal fixes to allow foo_input_exe/foo_input_ffmpeg decoding of HLS & RTMP streams.
  • Added internal IMA ADPCM decoder for specific WAV files that system codec refuses to process.

foobar2000 1.4 beta 13 changelog:

  • Added preferences page to adjust priority order of installed decoders.
  • Greatly improved DSP manager dialog.
  • Added output mode switcher toolbar item to Default User Interface.

Converter improvements:

  • Keeping incomplete/problematic output files is now optional; they're deleted by default.
  • New and improved overwrite prompt dialog.
  • FDK AAC is now among the default presets (beta 2).

ReplayGain scanner improvements:

  • Apply gain to file content feature now runs in multiple threads and supports MP2 content.
  • Added command to manually manipulate Opus header gain field for both .opus and Matroska.

Other changes:

  • Playlist & Media Library search use a new text-matching algorithm similar to Unicode Asymmetric Search.
  • Reworked Default User Interface Preferences pages; improved options for minimize & close behaviors.
  • Cosmetic tweaks; prettier buttons attached to editboxes in various dialogs.
  • Cleaned up Opus header gain manipulation, reported value no longer offseted by 5 dB, made header gain respected when embedded in Matroska container.
  • Matroska support improvements, improved seeking performance on files without seektables.
  • Made possible to choose between alternate audio streams in MP4 and Matroska files.
  • Implemented WebM internet stream playback.
  • Made Album List remember expanded nodes (beta 2).
  • Raised track count limit for cue sheets from 99 to 999 (beta 2).
  • Fixed a bug causing incorrect tags being read from certain multi-chapter MP4 files (beta 3).
  • Integration with Windows 10 Universal Volume Control (beta 4).
  • Playback controls in taskbar on Windows 7 and newer (beta 4).