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[Gideon Walker <1483816@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

I am trying a simple test using a loopback sound device.

pacat -r -d alsa_output.pci-0000_00_1b.0.analog-stereo.monitor \
--latency=1msec \
| pacat -p -d alsa_output.pci-0000_00_1b.0.analog-stereo \
 --latency=1msec

I use the above command.  This is to take the microphone input and write
it to the loopback device.

(this is just a test.  once I have this working, I plan to pipe through
sox to modify the sound)

I find that when I do this and record, I get no sound at all.

If I record directly from the microphone, then the recording does have
sound.

I am using Ubuntu 14.4.3

** Affects: alsa-driver (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1483816

Title:
  problem using loopback sound device

Status in alsa-driver package in Ubuntu:
  New

Bug description:
  I am trying a simple test using a loopback sound device.

  pacat -r -d alsa_output.pci-0000_00_1b.0.analog-stereo.monitor \
  --latency=1msec \
  | pacat -p -d alsa_output.pci-0000_00_1b.0.analog-stereo \
   --latency=1msec

  I use the above command.  This is to take the microphone input and
  write it to the loopback device.

  (this is just a test.  once I have this working, I plan to pipe
  through sox to modify the sound)

  I find that when I do this and record, I get no sound at all.

  If I record directly from the microphone, then the recording does have
  sound.

  I am using Ubuntu 14.4.3

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