[linux-audio-user] hardware mixing - what it _actually_ is?

Lee Revell rlrevell at joe-job.com
Mon Jan 22 17:29:16 EST 2007


On 1/22/07, Mark Knecht <markknecht at gmail.com> wrote:
> The device does support hardware mixing. I can take inputs coming into
> the card and mix them directly with outputs coming from Alsa to create
> an output stream going to my monitors in real time with no latency
> with or without sending the inputs to Alsa for other uses.

I think almost every pro and consumer card supports mixing of external
inputs with the sound stream from the PC.

"Hardware mixing" in ALSA terminology refers to the mixing of multiple
sound sources from the PC by the hardware.  For example, mplayer
output and system notification sounds.

Lee



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