I have two copies of a Belgian 45 RPM single that are both rather clicky even after being washed. The pops occur throughout, stochastically, but occupy a small fraction of the overall time, such that the two copies together aren't missing any of the song. Having recorded the audio from each, I can imagine manually switching back and forth between them at 1/1000 speed to avoid all the clicks. What automated algorithm or method can produce a good recording from these sources?

EDIT: I will accept an explanation of why this is impossible as answer to this question.

1 Answer 1


Honestly, I think you'd have a much simpler task if you tried some de-clicker software on the best of the pair than attempt to keep two independently-recorded analogue tracks in prefect phase-sync for three minutes whilst cross-cutting by eye.

I know of no software that could automate your chosen task.

My de-clicker of choice is Waves X-Click
Two others I'm aware of but haven't used are Sonnox Oxford & Izotope RX

  • 2
    I agree that doing it manually is prohibitively difficult. Before that I would consider going back to spend yet more on a cleaner copy. Commented Jan 22, 2017 at 6:37
  • 2
    Now why didn't I think of that? ;) Cheaper than any of the plugins. I was thinking in purely 'engineering' terms, rather than stepping back from the problem.
    – Tetsujin
    Commented Jan 22, 2017 at 6:41
  • It wouldn't be possible to achieve accurate phase sync across multiple plays of a vinyl disc.
    – Mark
    Commented Jan 22, 2017 at 12:12
  • @Mark, if the recordings were phase-aligned at the beginning, i'm not sure what would put them out of sync afterwards. the turntable has a heavy platter which ought to dampen variation in the mains power frequency. Commented Jan 23, 2017 at 4:47
  • @Tetsujin after looking in the marketplace the only easy option is a 20 euro compilation CD which includes this track. as you said, a declicker is most practical... unless a good technical solution to this question appears. Commented Jan 23, 2017 at 4:49

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