What do the numbers mean in the Click Removal sliders?

I have recorded a stack of LPs, and I’ve just started looking into click & pop removal. I spent an hour investigating spikes in between songs in a recording (using Audacity), and measured the pulse widths and amplitudes of a number of spikes associated with clicks/pops. How disappointed was I to discover that the sliders in Audacity’s Click Removal pop-up there are no units displayed for ‘threshold’ or ‘maximum spike width’ !

Does anybody know what the numbers on the sliders actually represent? I would like to see ‘ms’ for [pulse width] and ‘dB’ (relative to the RMS value of the sample) for [threshold], but the choice belongs to the designer.

Digital signal processing technology is arguably the most pervasive product of pure mathematical physics. It seems a shame that such an excellent product as Audacity should divorce its users from the most basic requirements of the scientific approach: units of measurement.

  • Uncertain Al

See this page in the manual: http://manual.audacityteam.org/o/man/click_removal.html

Personally I never use Audacity’s Click Repair effect - I find that he ClickRepair package from Brian Davies does a truly excellent job (I use Audacity for all my other editing). See this sticky thread: https://forum.audacityteam.org/t/click-pop-removal-clickrepair-software/1933/1

You find this workflow tutorial from the manual useful: https://forum.audacityteam.org/t/click-pop-removal-clickrepair-software/1933/1

It’s part of this set of tutorials: https://forum.audacityteam.org/t/click-pop-removal-clickrepair-software/1933/1


Thanks for the tip. I’ll check it out.