MediaCoder新增全新Opus音频格式支持

Opus是一种全新的开放且无授权费的音频格式,音质胜过现有的有损音频压缩格式。目前foobar2000已经支持播放该格式。

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The Opus codec is designed to handle a wide range of interactive audio applications, including Voice over IP, videoconferencing, in-game chat, and even remote live music performances. It can scale from low bit-rate narrowband speech to very high quality stereo music. The current features are:

  • Bit-rates from 6 kb/s to 510 kb/s
  • Sampling rates from 8 to 48 kHz
  • Frame sizes from 2.5 ms to 60 ms
  • Support for both constant bit-rate (CBR) and variable bit-rate (VBR)
  • Audio bandwidth from narrowband to full-band
  • Support for speech and music
  • Support for mono and stereo
  • Support for up to 255 channels (multistream frames)
  • Dynamically adjustable bitrate, audio bandwidth, and frame size
  • Good loss robustness and packet loss concealment (PLC)
  • Floating point and fixed-point implementation

You can read the specification in the latest Internet Draft.

星期二, 八月 7, 2012

Copyright ©2005~2012 MediaCoder作者Stanley Huang保留所有权利.

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