[pulseaudio-discuss] [RFC] Dynamic reconfiguration of sampling rate

[Arun Raghavan]

On Mon, 2011-01-17 at 14:24 -0600, pl bossart wrote:
[...]
> I can see cases where you have 1 compressed stream and 1 PCM, and you
> mix the two in hardware, but I am having a really hard time finding a
> use case where you would have multiple (more than 2) PCM streams at
> different rates. Maybe automotive cases, where the infotainment unit
> might send multiple streams to a head unit were the mixing/routing is
> actually done? Did anyone request hardware mixing on the mailing list?

This is something we often hear about from people with Creative
SoundBlaster Live/Audigy cards and their ilk, which support hardware
mixing. To some extent, the complaint is reasonable, since we're forcing
resampling on CPU even though this can be off-loaded to the soundcard.

Cheers,
Arun