Hi P, thanks for your reply. *ouch* I totally forgot about audacity - I regularly use this to "look at" the audio (while I process it with sox) ... A first trial of audacities "Click removal" removes most of the clicks, however, it also alters all audio where no clicks have been - this seems to be intrinsic to an analogue-click removal tool. declick only seems to work with "digital" clicks, e.g. single samples being wrong (according to its website) - wheras I have ~50 samples forming a "nice" dip. and gnoise unfortunately doesn't compile on my machine, because it can't find gtk - I have gtk2 and gtk3 installed (and gtk is not available on arch linux), so I think it's just outdated :-/ I think, I'll experiment some further with audacity and probably write my own tool at some point which conforms to my crazy opinions standard, e.g: no change of audio, where no click is suspected, and removal of all suspected clicks. cheers, Erich On 09.12.2016 11:51, Peter P. wrote: > Hi Erich, > > * Erich Eckner <erich@xxxxxxxxxx> [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 > > ------------------------------------------------------------------------------ > Developer Access Program for Intel Xeon Phi Processors > Access to Intel Xeon Phi processor-based developer platforms. > With one year of Intel Parallel Studio XE. > Training and support from Colfax. > Order your platform today.http://sdm.link/xeonphi > _______________________________________________ > Sox-users mailing list > Sox-users@xxxxxxxxxxxxxxxxxxxxx > https://lists.sourceforge.net/lists/listinfo/sox-users >
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