Re: Stuttering when recording sink monitor audio.

Georg Chini <georg@xxxxxxxx> · Sun, 21 Jan 2024 17:44:02 +0100



    On 19.01.24 09:39, 赵成义 wrote:

    
      Hi guys,
      

      I found a issue about stuttering when recording sink
          monitor audio, as shown below:
      

          Preconditions:
          1. The sound card only supports software volume.
          2. Two audio players play different audios at the same
            time.
          3. Set to speaker output audio.
          

          Test steps:
          1. Record the audio stream of the monitor of the speaker
            sink through parec.
              For example: parec -d
            alsa_output.platform-raoliang-sndcard.analog-stereo.monitor
            --file-format=wav test1.wav
          2. Change the volume of the speaker sink during
            recording.
          3. It will cause stuttering in the audio stream recorded
            from the monitor channel of the speaker sink.
          4. However, the audio output from the sound card speaker
            does not stutter.
          

          Could you tell me why this problem occurs? thanks a lot.
          

          Cheers,
          Chengyi
        
      
    Hi,
    which version of PA are you using? That behavior has been a known
      bug in older versions,

      but at least version 16 or the recently released 17 should not
      show that issue.
    Regards

                    Georg