How do I record my system audio using ALSA Mixer?

Zhong Jiang January 10, 2013
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I am fed up using microphone as my capture source, I cannot find mix or wave on my recording option on ALSA Mixer and there’s no solution available. How am I able to record sounds within the desktop without resorting to PulseAudio or other sound servers?

I am using Debian Linux. Thanks.

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  1. Zhong Jiang
    January 15, 2013 at 3:55 am

    I know I'm able to record sound through the microphone, so generally the program have sound but I want it to record internally. Thanks for the links ha14, but it's not what I'm looking for. Specifically, I wanted to record sound through the audio the speaker is using but that's not possible unless I use some loopback device which I'm having trouble to setup. Then how am I able to record such device on RMD settings?

    • ha14
      January 15, 2013 at 5:42 pm
      • Zhong Jiang
        January 16, 2013 at 4:00 am

        I already checked out the forum for that site but when it says: "make sure it record from looprec", I'm stuck. The problem is, what device should I put it in on RMD settings. I've tried looprec, which isn't a soundcard that the program recognizes.

        • ha14
          January 18, 2013 at 7:28 pm

          when you plug or install something check /var/log/messages and see if it is correctly detected, if not then perhaps can explain your problem

        • Zhong Jiang
          January 19, 2013 at 5:27 am

          RMD doesn't install the device, it just reads from ALSA, on what its settings are. The log files might not help because looprec isn't a valid device.

  2. ha14
    January 11, 2013 at 4:26 pm

    Limited options in alsamixer

    Tutorial - Recording Computer Playback on Linux

    Record soundcard output ? No mix options on my HDA card..

    • Zhong Jiang
      January 12, 2013 at 4:23 am

      Thanks for the link, I'm using Recordmydesktop but there's no relevant sections that can help me to record the system audio. All of your references is relevant but I've checked them already. So could you provide some answers whether if ALSA is able to record system audio that's compatible with the software?

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