Re: find clicks

["Peter P." <peterparker@fastmail.com>]

Hi Erich,

* Erich Eckner <erich@eckner.net> [2016-12-09 09:59]:
> Dear list,
> 
> probably this is beyond sox' scope, but maybe one of you can help anyway:
> 
> I have some recordings (flac-files) which have emp-interference (audible
> "clicks" of length ~ 1/2000s) in them. Do you know any scriptable tool
> (or a plugin to sox) to extract the positions (time or sample) of
> potential clicks?
> 
> I know, I could track them down manually, but I would really prefer to
> listen only to a few minutes of potentially emp'ed audio rather than to
> many days of audio (I usually do multi channel recordings and the emp is
> not on all channels and also very sparse on the time axis).
> 
> Furthermore (this is probably closer to what sox can do), is there a
> effect combination in sox (or a ladspa plugin) which can "iron out"
> these disturbed samples (and intrapolate their values somehow from
> surrounding samples) - given, I know the position of the samples?

A quick web research on "ladspa declick" gave the following results:

Not SoX but Audacity has Click Removal and Repair effects.

Then this link
http://home.snafu.de/wahlm/dl8hbs/declick.html

and not sure if gnoise
https://sourceforge.net/projects/gnoise/
does something.

tell us how things go
P

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