click removal

[Alexey Lukin]

Originally Posted by jayfrigo

As has been said, Sonic's manual declicker is the best tool for this job. It basically looks to either side of the click and creates a replacement with appropriate spectral content. B-type is the most common for complex music waveforms, though the other types are invaluable for specialized situations

It'd be interesting to do a shootout of different waveform interpolators. We could create a few gaps of different duration at specified intervals in a sample and then try to interpolate them with different software and compare the results. Any ideas what would make a good test example?

[inlinenl]

BIG fan of RX .. the poormans Cedar :-)
never automated , always manual .. please ...

at what resolution the declick interpolation works the best ????? maybe more theory then real world ???

[j-madd]

Originally Posted by jayfrigo

Interpolation means it tries to figure out what was supposed to be there based on context; it re-synthesizes a matching audio replacement based on analysis of surrounding content.

Thanks for the explaination. thumbsup

Justin

[Alexey Lukin]

Originally Posted by inlinenl

at what resolution the declick interpolation works the best ????? maybe more theory then real world ???

Are you asking about the file bit depth or interpolation order? File bit depth doesn't really matter. As for interpolation order - more is better in most cases.

[inlinenl]

Originally Posted by Alexey Lukin

Are you asking about the file bit depth or interpolation order? File bit depth doesn't really matter. As for interpolation order - more is better in most cases.

96 vs. 44.1 was the Q.
thnx Alexey ...

[Waltz Mastering]

Originally Posted by inlinenl

never automated , always manual

Same here.

[Alexey Lukin]

Originally Posted by inlinenl

96 vs. 44.1 was the Q.

I'd stay at the original rate of the recording and not do SRC just for declicking. Probably declicking is somewhat more effective at lower sampling rates, because interpolation order is measured in samples, and you "capture" more information at lower sampling rates.

[Alexey Lukin]

I've prepared a test file with a few clicks in it and invite everyone to try manual waveform interpolation on them. There are exactly 9 clicks (actually - just silenced intervals), they are starting at 1 second, 2 seconds, 3 seconds, ..., 9 seconds. Their durations are exactly 0.5 ms, 1 ms, 2 ms, ..., 128 ms. Let's see which interpolator works best!

I've done it in RX using Manual Declicker (and Spectral Repair for the last one, as Manual Declicker refuses to interpolate more than 4000 samples).

[Adam Dempsey]

96 vs. 44.1 was the Q.

Bit depth matters in these cases.

Originally Posted by dcollins

NoNoise is closer to 1984 than 94. We used to have to fly to San Francisco where Andy Moorer had it running on a Sun workstation.

Interesting, thanks Dave. Yes I knew the R&D would have extended back significantly before the release within the commercially available Sonic workstation. I imagine it would have been a pretty slow process in '84 (more than the length of a flight), running purely off line, or are you talking development of manual declick only, prior to production (auto) declick & decrackle?

[MarkWilder]

Adobe Audition.

[mrlouie]

Manual declicking I use Sonic for ticks and snaps, I used the wave form restorer thing in Wavelab before and that did a good job on a big piece.

[Jerry Tubb]

Originally Posted by Thor

Sonic Studio Manual DeClick for pretty much any impulse noise here. Use it regularly.

+1

with amazing results!

I use both the soundBlade and PT HD versions.

JT

[Alexey Lukin]

Jerry (or someone with Sonic), mind repairing my sample in Manual Declick?

[jayfrigo]

Originally Posted by Alexey Lukin

Jerry (or someone with Sonic), mind repairing my sample in Manual Declick?

It would also be interesting to see what Sonic's different interpolators do (A-D) since they're tailored to different situations. Depending on which you choose, results will vary. Unfortunately, I'm unable to spare a moment for it this week. Maybe next if it is still outstanding.

Different kinds of source material also will yield diferent results, for instance what happens if a click is right before or after a transient, like a snare drum etc. Sonic has some adjustments for that; not sure how the others handle it. However, that's really a more complex test than I can get into currently. And what about the other interpolators out there? Or pencil tools etc? The more represented, the more interesting it will be.

[Key]

Originally Posted by jayfrigo

Different kinds of source material also will yield diferent results, for instance what happens if a click is right before or after a transient, like a snare drum etc. Sonic has some adjustments for that; not sure how the others handle it. However, that's really a more complex test than I can get into currently. And what about the other interpolators out there? Or pencil tools etc? The more represented, the more interesting it will be.

I usually try to use a glitch/click finder and my ears to confirm it's the click it's finding and not the transient. This can be a real pain if it happens say in the middle of a distorted guitar part. Sometimes automated searching just doesn't work and in those really tough situations I find that setting the playback to a lower sample rate helps. So if the file is 192 I will set the playback rate to 96kHz. This usually makes the click stand out more and of course you are sort of scrubbing through the waveforms much slower so it's easier to visually spot where it is.

[Alexey Lukin]

I've done the interpolation using Sound Forge 8 and WaveLab 6 built-in interpolators.
Sound Forge seems to use a simple linear interpolation that doesn't really work well for selections longer than a few samples.
WaveLab is using some real interpolation and has several presets (I chose most appropriate ones, depending on the click duration).

[inlinenl]

a little bit sidestep for RX users ..
make sure you enable all processors for denoise-C in the prefs .. default I think it's 1 ... shame if you've got 2/4/8 processors .. it really speeds up ...

[bachconnelly]

ReTouch.. Use it everyday and love it...

[Alexey Lukin]

Mind doing a sample for us? (see posts above)