https://opensource.googleblog.com/2022/09/lyra-v2-a-better-f...
[1]: https://en.wikipedia.org/wiki/Adaptive_Multi-Rate_audio_code...
https://en.wikipedia.org/wiki/Radiotelephony_procedure#Proce...
https://opensource.googleblog.com/2022/09/lyra-v2-a-better-f...