presentations/audiocodecs/slides/16-1-c2.md

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2024-09-16 21:27:30 -04:00
### Codec2
<!-- Samples encoded at 2400 bit/s -->
<div style="font-size: 0.55em;">
- Developed in 2010 by David Grant Rowe
- Speech optimized, ultra low bandwidth audio codec
- Fully Open Standard and Royalty Free
- Very poor software support
- Supports:
- 16-bit sampling depth only
- 8kHz sampling rate only
- 1 audio channel
- 3.2 kbit/s bitrate
</div>
<div style="text-align: center; display: grid; grid-template-columns: 1fr 1fr;">
<div> <!-- Left pane -->
<!-- Title -->
##### Music
<audio controls src="media/samples/musicc2.flac">Codec2 Music Sample</audio>
<div style="font-size: 0.33em; line-height: 0.1em;">
"The Show Must Be Go" by Kevin MacLeod
Licensed under [CC-BY 3.0](https://creativecommons.org/licenses/by/3.0/deed.en)
</div>
</div>
<div> <!-- Right pane -->
<!-- Title -->
##### Voice
<audio controls src="media/samples/voicec2.flac">Codec2 Voice Sample</audio>
<div style="font-size: 0.33em; line-height: 0.1em;">
LibriVox recording of "The Art of War" by Sun Tzu
Read by Moira Fogarty
</div>
</div>
</div>
Note:
Officially supported 700 bit/s - 3200 bit/s, but a white paper exists for 450 bit/s
Developer worked on Speex
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