This is my recording setup

  • Shure SM7B
  • DBX 286S
  • Focusrite 2i2 2nd Gen
  • I use screencast and a mac to record it.

Am listening to constant click sounds when I record the screencast. For sure it's not the mouse clicks as I listen to this in the portions where mouse is not used at all.

Have been struggling with this a lot and any help can be very much appreciated.

  • Not really any idea at this stage. Please post a link to an example of the problem - might give one of us some sort of a clue as to what's going on.
    – Mark
    Commented Aug 4, 2019 at 7:21

1 Answer 1


What you're hearing could be the result of a sampling-rate conversion issues, although I can't be sure without having heard an example recording.

You're using an external audio-interface, which has it's own A/D-conversion hardware, running at a certain configured sampling-rate (44100Hz, 48000Hz, 96000Hz etc…) . When your mac's internal audio-hardware uses a different sampling-rate, my experience is that this can result in the clicking noises you describe. (I would rather describe it as a 'rattling' sound)

To prevent it, make sure all audio hardware uses the same sampling-rate. It's probably also best to make sure any file-inserts (audio-, video-files etc..) that mix in additional audio-tracks in ScreenCast, also have that same sampling-rate.

And personally I would even go so far as to avoid sampling-rate down-conversion at the encoding stage. So if you've for instance configured all your audio-hardware to sample at e.g. 48kHz, then also encode your stream audio with this sample-rate.

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