Vorbis Encoders

• Vorbis-OptSort: This patch improves source code of the Vorbis codec library (libvorbis-1.0) to accelerate encoding time about 10% (not apply clean on 1.1.1).
• AoTuV beta4.51 encoder: Optimized encoder for higher quality and lower bitrate down to 32 Kb/s (q-2). AoTuV beta2 was adopted as a part of Vorbis 1.1 of Xiph.Org. Note that this patch also include the Vorbis-OptSort patch. Quality test of AoTuV beta4 vs. libvorbis 1.1.1:
  • 80Kbps comparison of many audio codec and libvorbis 1.1.1 vs. AoTuV beta4
    • libvorbis 1.1.1 ABR vs libvorbis 1.1.1 VBR vs AoTuV beta4 VBR summary:

http://audiotests.free.fr/tests/2005.07/80/80TEST_PLOTS_04.png

• • 96Kbps comparison of many audio codec and libvorbis 1.1.1 vs. AoTuV beta4 (french)
    • Google traduction
    • libvorbis 1.1.1 vs AoTuV beta4 summary:

http://audiotests.free.fr/tests/2005.07/96/96TEST_PLOTS_04.png

• Optimized Ogg Vorbis Encoders: these are highly optimized encoders developed by the Ogg Vorbis Acceleration Project that are much faster than the standard builds with negligible to no effects on audio quality.
  • Home page (Japan)
  • Home Page (google traduction)
  • Home Page (English, not up to date)