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Is there a program for Ubuntu 12.10 that can record sounds of only the output of the speaker and not any voices from outside the PC?

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Why do you want to record sound from inside the computer?? – jPlatte Dec 15 '12 at 16:48
there is a virtual piano website, and i want to play piano and record it while i'm listening to it from my headphones and not outloud. – AmirRazoR Dec 15 '12 at 16:56
So you just want to record the output sound of a website? I think almost everyone here thought you were talking about sounds of your computer components :D – jPlatte Dec 15 '12 at 17:42
My answer on this similar question might be helpful: – user76204 Dec 21 '12 at 0:02
up vote 54 down vote accepted

If I'm not wrong, then i guess you are talking about recording "Stereo Mix" or loopback Output.

In lay man terms Recording Stereo Mix means recording sound from speaker output

Here's how to do it.

  1. Install "pavucontrol" from ubuntu software center.
  2. Install "audacity" from ubuntu software center.
  3. Select "pulse*" as recording device in Audacity
  4. Click Record Button
  5. Open PulseAudio Volume Control (Search For PulseAudio Volume Control in Dash)
  6. Select Recording Tab
  7. Now You Should see ALSA plug-in [audacity]. If you do not see ALSA plug-in [audacity], make sure you have clicked Record Button in audacity. You should be running recording in audacity while performing next step.
  8. Select "Monitor from *". See screen shot. Screen shot of PulseAudio Volume Control
  9. Now you should be able to record the sound you hear from speaker or headphones.

Note: Tested in Ubuntu 12.10 Reference PulseAudio - Ubuntu Wiki

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i did find "pulse" but i couldn't find "pulse:Mix:0" or anything like mix 0. i just went to preferences and then devices and i clicked on recording and it was only pulse there,where can i find pulse:mix:0? – AmirRazoR Dec 16 '12 at 16:47
@AmirRazoR Update to reflect current version of Ubuntu. – 465544 Dec 17 '12 at 15:05
The Recording tab in puvucontrol is empty and I too could not find how to change to pulse in audacity. – kroiz May 10 '13 at 6:31
This works great for me. Thanks! – J. Taylor Oct 2 '13 at 6:39
It works great in Ubuntu 13.04 (amd64), too. Thanks a lot! – conualfy Oct 10 '13 at 1:14

A very small, bare-bones software that does exactly what you need, is called (rather obviously) "Audio Recorder", installed like this:

sudo apt-add-repository ppa:osmoma/audio-recorder

sudo apt-get update && sudo apt-get install audio-recorder

Ubuntu audio-recorder

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It works like a charm, too! :) – conualfy Oct 10 '13 at 1:41
This is lovely, thank you! Very neat, and though Audacity setup works, if you just need to record audio (to ogg, wav, mp3, etc), this is the solution. – karni Oct 10 '13 at 16:48
Very simple and neat tool! – SunLiWei Nov 12 '14 at 10:02
Why would you go thru all the "hustle" with Audacity when this one does the job you need with a single click ... beats me. – poelinca Jun 11 '15 at 8:22
audio-recorder currently doesn't work in Ubuntu 14.04: audio-recorder: symbol lookup error: audio-recorder: undefined symbol: _gst_message_type – Aleksander Alekseev Feb 26 at 8:29

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