ALSA

Advanced Linux Sound Architecture

Exemple: cat /proc/asound/card0/pcm0p/sub0/hw_params

access: MMAP_INTERLEAVED
format: S32_LE
subformat: STD
channels: 2
rate: 48000 (768000/16)
period_size: 480
buffer_size: 1920

• https://www.alsa-project.org/wiki/Main_Page