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Opus Audio Codec

Hallo zusammen,

Gestern bin ich über ein interessantes Video zum Opus Audio Codec gestolpert. Der Codec ist eine Kombination der CELT (Xiph.Org) und SILK (Skype) Audiocodecs.

Hier ein paar Eckdaten:

  • Bit-rates from 6 kb/s to 510 kb/s
  • Sampling rates from 8 kHz (narrowband) to 48 kHz (fullband)
  • 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 fullband
  • 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

Links:

Die Präsentation zum Video gibt's hier: http://www.opus-codec.org/presentations/misc/lca-opus.pdf

Weitere Informationen:

Grüsse
Andres Bohren

Print | posted on Wednesday, March 5, 2014 12:38 AM | Filed Under [ UM/Mobile ]

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