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[Martin Steghöfer <1099873@xxxxxxxxxxxxxxxxxx>]

I don't think this is a bug of vorbis-tools, but either a bug of parec
(or some underlying library) or a user error.

Both the content of the error message and the moment in which it appears
suggest that the message actually comes from parec instead of oggenc. I
grepped the source code of oggenc and neither the string "Invalid
argument" nor "Stream error" appear anywhere. However, a web search
revealed that parec does produce that message on occasion [1] [2] [3].
However, I'm not sure, if it is parec directly. Some results suggest
that the message comes from pulseaudio.

Have you tried piping to something different than oggenc? Or reading
from a different device?

Piping from parec to oggenc works flawlessly on my Ubuntu 14.04 system for reading from both a real input device and a monitor:
parec -d alsa_output.usb-Sennheiser_Sennheiser_USB_Headset_0000000000-00-Headset.analog-stereo.monitor | oggenc --raw -q 8 -o test.ogg -
parec -d alsa_input.usb-Sennheiser_Sennheiser_USB_Headset_0000000000-00-Headset.analog-stereo | oggenc --raw -q 8 -o test.ogg -

Cheers,
Martin

[1] http://lists.freedesktop.org/archives/pulseaudio-discuss/2010-February/006585.html
[2] https://groups.google.com/forum/#!msg/sdr-widget/RPn147OX9ak/BxlrTuNLQj4J
[3] https://github.com/mumble-voip/mumble/issues/1297

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https://bugs.launchpad.net/bugs/1099873

Title:
  oggenc raw recording: Stream error: Invalid argument

Status in vorbis-tools package in Ubuntu:
  New

Bug description:
  Hi,

  Seem to me it is impossible to record raw audio of 16 bit signed
  little endian, 2 channel 44100kHz with oggenc, under precise at least.

  According to 
  http://unix.stackexchange.com/questions/45837/pipe-the-output-of-parec-to-sox
  http://thisisabore.net/tag/CLI

  it should be as simple as

  oggenc --raw -o test.ogg -

  However, that always gives me the following error:

  Encoding standard input to 
           "test.ogg" 
  at quality 3.00
  Stream error: Invalid argument

  
  Done encoding file "test.ogg"

          File length:  0m 00.0s
          Elapsed time: 0m 00.0s
          Rate:         0.0000
          Average bitrate: inf kb/s

  It's been working before according to the listed sources, could it be
  a bug of oggenc in precise?

  can you try it with your release please?

  BTW, to get the correct MONITOR device, use this

  
  MONITOR=$(pactl list | egrep -A2 '^(\*\*\* )?Source #' | \
  Name: .*\.monitor$' | awk '{print $NF}' | tail -n1)

  ref: http://www.outflux.net/blog/archives/2009/04/19/recording-from-
  pulseaudio/

  Thanks

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