presentations/audiocodecs/slides/13-opus.md

Opus

^{It doesn't stand for anything either >:(}

• Developed in 2012 by Xiph.Org
• Fully Open Standard and Royalty Free
• Very good software support
• Low latency, music or speech optimized audio codec
• Supports:
  • 16-bit sampling depth only
  • 48kHz sampling rate
  • 255 audio channels
  • 256 kbit/s/channel bitrate

Music

Opus Music Sample

"The Show Must Be Go" by Kevin MacLeod

Licensed under CC-BY 3.0

Voice

Opus Voice Sample

LibriVox recording of "The Art of War" by Sun Tzu

Read by Moira Fogarty

Note: Commonly used for low latency voice applications (Discord, Skype (new), Teams, Source Engine 1&2, Zoom, basically anything WebRTC) Also commonly used for music playback (YouTube, Spotify) Typical latency is 27ms for default frame size 2-way Bluetooth audio codec

[comment]: # (!!!)