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Re: Multichannel audio listening

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rhkramer@gmail.com writes:

> On Monday, March 05, 2018 05:49:45 AM Jeremy Nicoll wrote:
>> On Mon, 5 Mar 2018, at 09:39, Rodolfo Medina wrote:
>> Does your computer, or attached soundcard(s) have capacity to
>> drive three outputs at once?
>> 
>> If it does I think you'll need to tell whatever software controls that
>> hardware where to take audio-data from.
>> 
>> Maybe 'sox' can direct audio to multiple channels, but I think you
>> will need to tell sox which hardware devices to use.  The section
>> of the sox manual, page 3, "Playing & Recording Audio" might help.
>
> Without having ever (intentionally) used jack (JACK (Jack Audio Connection 
> Kit)), I would guess that it might be useful.
>
> (Like Jeremy says, you will need 3 output devices.)  Somewhere along the line
> I bought some audio devices (my choice of words) that are, afaik, like a
> sound card built into a very small (USB) plug like device.  I can plug it
> into a USB and then plug stereo headphones into it--the device functions like
> a sound card, self powered from the USB port.
>
> I bought those, as I often do such things, off ebay from the far East.
>
> I suppose you might do a hinky workaround to get two output devices from one 
> (stereo) sound card by (possibly after merging stereo signals into a mono 
> signal) sending a different (mono) signal to each channel (i.e., left and 
> right) of a stereo sound card, at least for a sort of feasibility test.
>
> Do they make 5.2 or 7.2 sound cards for computers--if so, you could consider
> a similar approach using those 5 (or 7) channels.


Let's then have a two-channels audio file, let's call it input.wav.  Sox should
be told to send channel 1 of input.wav to soundcard 1 and channel 2 of
input.wav to soundcard 2.  Having a look at sox manual, I didn't find anything
such...

Rodolfo

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Thread

Multichannel audio listening (was: Live recording) Rodolfo Medina <rodolfo.medina@gmail.com> - 2018-03-05 10:40 +0100
  Re: Multichannel audio listening (was: Live recording) Jeremy Nicoll <jn.ml.dbn.25@letterboxes.org> - 2018-03-05 12:00 +0100
    Re: Multichannel audio listening (was: Live recording) rhkramer@gmail.com - 2018-03-05 14:50 +0100
      Re: Multichannel audio listening Rodolfo Medina <rodolfo.medina@gmail.com> - 2018-03-05 17:20 +0100
        Re: Multichannel audio listening Jeremy Nicoll <jn.ml.dbn.25@letterboxes.org> - 2018-03-05 18:00 +0100
        Re: Multichannel audio listening rhkramer@gmail.com - 2018-03-05 18:10 +0100
      Re: Multichannel audio listening Ric Moore <wayward4now@gmail.com> - 2018-03-06 00:00 +0100
  Re: Multichannel audio listening (was: Live recording) Joel Roth <joelz@pobox.com> - 2018-03-06 20:30 +0100
    Re: Multichannel audio listening Rodolfo Medina <rodolfo.medina@gmail.com> - 2018-03-07 10:10 +0100
      Re: Multichannel audio listening rhkramer@gmail.com - 2018-03-07 20:30 +0100
        Re: Multichannel audio listening Rodolfo Medina <rodolfo.medina@gmail.com> - 2018-03-07 22:40 +0100
          Re: Multichannel audio listening Jeremy Nicoll <jn.ml.dbn.25@letterboxes.org> - 2018-03-08 15:30 +0100
      Re: Multichannel audio listening Jeremy Nicoll <jn.ml.dbn.25@letterboxes.org> - 2018-03-07 20:40 +0100
        Re: Multichannel audio listening rhkramer@gmail.com - 2018-03-07 20:50 +0100
      Re: Multichannel audio listening Joel Roth <joelz@pobox.com> - 2018-03-07 22:20 +0100
        Re: Multichannel audio listening Rodolfo Medina <rodolfo.medina@gmail.com> - 2018-03-08 15:20 +0100
          Re: Multichannel audio listening Jeremy Nicoll <jn.ml.dbn.25@letterboxes.org> - 2018-03-08 15:40 +0100
            Re: Multichannel audio listening Rodolfo Medina <rodolfo.medina@gmail.com> - 2018-03-08 16:10 +0100
              Re: Multichannel audio listening Doug <dmcgarrett@optonline.net> - 2018-03-08 20:50 +0100
                Re: Multichannel audio listening Jeremy Nicoll <jn.ml.dbn.25@letterboxes.org> - 2018-03-08 21:10 +0100
                Re: Multichannel audio listening Don Armstrong <don@debian.org> - 2018-03-08 21:50 +0100
                Re: Multichannel audio listening Doug <dmcgarrett@optonline.net> - 2018-03-09 03:30 +0100
                Re: Multichannel audio listening Richard Hector <richard@walnut.gen.nz> - 2018-03-10 08:20 +0100

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