[pulseaudio-discuss] Pulseaudio Mixing & DSP Mixing

[pl bossart]

I also don't think mixing PCM streams in hw would bring much added value.

However the initial post mentioned that the DSP can handle decoders as
well. That's a completely different story. If you have compressed
streams, you could benefit from offloading the decompression and mix
to the DSP. The problem is these streams are not controlled by
PulseAudio/ALSA...You will have to go through a series of hoops to
make this work, and some use cases will force you to provide the PCM
back to the host anyway (think BT/USB playback).
- Pierre