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I am trying to record the sound output, but this looks more complicated than expected.

I expected that

 arecord -f cd -t wav --max-file-time 3600 --use-strftime %Y/%m/%d/listen-%H-%M-%v.wav

would record 1 file every hour, putting the resulting file in a directory structure with year, month, day and name (hour).wav file.

It actually records the sound output through the microphone (adding to it every imaginable environment noise, specially typing in the keyboard).

ffmpeg -f x11grab -r 25 -s 800x600 -i :0.0 -f alsa -ac 2 -i pulse -acodec libmp3lame -ab 128k /tmp/outputFile.mpg manages to record the video and sound, but suffers from the same problem as the previous command.

Is there a way of pipping to a file the sound that's being generated?

The output of record -l is:

List of CAPTURE Hardware Devices ** card 0: MID [HDA Intel MID], device 0: ALC269VB Analog [ALC269VB Analog] Subdevices: 1/1
Subdevice #0: subdevice #0

If I don't find a solution, I'd go with the inelegant solution of buying a loopback cable to connect the output of the loudspeakers to the input of the microphone.

  • 3
    Isn't this what you want? how to pipe audio output to mic input – slm Mar 24 '14 at 2:21
  • @slm: nope. I want to record the conversation partner of mine in a voip conversation, with video and audio. – Quora Feans Mar 24 '14 at 2:26
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    Follow the instructions in the linked questions, it will allow you to set up a recording source from the audio output. Then you use your ffmpeg command to record the video, and use either the ffmpeg command or pavucontrol to set it to record from the source you just created. – fooot Mar 24 '14 at 18:27
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    @user4186: now that I see it calmly I realize that slm was right. That's what I wanted. – Quora Feans Mar 24 '14 at 18:41

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