[alsa-devel] Routing multiple signals to one output with ice1712 (Delta 66)
Hi folks
I want to setup the following audio routing: pcm + input1 (mic) + input2 (mic) -> output1 pcm + input1 (mic) + input2 (mic) -> output2 ...with pcm being the audio playback and input1&2 being two microphones.
With envy24control it is possible to select one signal for each output, but not multiple signals. Is this a restriction of envy24control, the alsa driver or is it simply not supported by the hardware?
Regards, Mathis
On Wednesday 19 September 2007 09:38, Mathis Hofer wrote:
Hi folks
I want to setup the following audio routing: pcm + input1 (mic) + input2 (mic) -> output1 pcm + input1 (mic) + input2 (mic) -> output2 ...with pcm being the audio playback and input1&2 being two microphones.
With envy24control it is possible to select one signal for each output, but not multiple signals. Is this a restriction of envy24control, the alsa driver or is it simply not supported by the hardware?
What you are talking about is really mixing the streams in addition to routing. Envy24control basically gives you all the hardware options of the chip. The ice1712 (=envy24 chip) includes a hardware mixer which can be routed to HWOut1 and HWOut2 using envy24control, but not to other outputs. This will allow any inputs and any PCM streams to be mixed. Note that these mixer settings can be controlled from an external MIDI control surface also!
I am sure there are also software options.
Alan
Hi Alan
What you are talking about is really mixing the streams in addition to routing. Envy24control basically gives you all the hardware options of the chip. The ice1712 (=envy24 chip) includes a hardware mixer which can be routed to HWOut1 and HWOut2 using envy24control, but not to other outputs. This will allow any inputs and any PCM streams to be mixed. Note that these mixer settings can be controlled from an external MIDI control surface also!
Ok thanks.
I am sure there are also software options.
So when I want to route (or as you say mix) multiple inputs to two stereo outputs I have to do it software-wise, right? Is this possible with alsa or do I have to use jack?
Mathis
participants (2)
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Alan Horstmann -
Mathis Hofer