Need advice: pop / click filter

WxMan1 · Sep 27, 2009, 12:27 PM

I have some source material that contains some serious pops / clicks, minor crackling that I'd like to filter out.

Any ideas?

peate · Sep 28, 2009, 03:00 PM

Any good wave editor should be able to filter out pops and clicks. I've used Goldwave with pretty good results.

Tyrsonswood · Sep 28, 2009, 03:47 PM

Audacity has some really good filters for that........ really good ones!

WxMan1 · Sep 29, 2009, 05:50 AM

I was hopin' that might accomplishable in the DSP. I was lookin' at the waveform in the E-FX Oscilliscope and came to the conclusion it probably wouldn't be.

The graphic frequency displays I seen on the net representing pops / clicks suggest amplitude modulation issues (spikes coming out of the general waveform). However, the base waveform I'm looking at - whalesong - resembles fequency modulation and where the pops / clicks occur, intermodulation distortion is quite apparent. Either at the apex of the wave, the wave can suddenly distort with pronounced lateral component (looks almost like a square wave component).

OR imagine a tiny inverted v superimposed at the base of a U (same phenomenon in the positive region, i.e., the U is inverted and a v is superimposed into the apex).

Max M. · Sep 29, 2009, 02:52 PM

Imho, such kind of clicks are hardly to be fixed in real-time.
(Though there're many "real-time" VST plugins for such purpose they all totally suck comparing to any dedicated non-real-time tools).
Either way, i would not expect such kX plugin to exist - simply because a convenient algorithms should involve complecated analysis methods that simply won't fit into the k1/k2 DSP memory.

WxMan1 · Sep 30, 2009, 02:39 AM

Thanx for the replies. I've seen the applications mentioned on the web. Something like that would most likely be what I'd need.

It gets even worse than I described. Sometimes embedded in the "meat" of the waveform (near the mid-line), I can get a pop / click that manifests itself like like a short jagged burst of lightning in the general waveform (at that point the wave may reverse entirely, or not).

The pop / clicks intuitively resemble somebody pressing and releasing a button on equipment during the intitial recording of the source material, or subsequently, mouse-clicks within mixing software; somebody was enabling/disabling monitor/bypass circuits. The pop / clicks are always paired, separated by a half second or less.

Sep 27, 2009, 12:27 PM	#1
WxMan1 HardwareHeaven Lover Join Date: Dec 2007 Posts: 221 Rep Power: 40	Need advice: pop / click filter I have some source material that contains some serious pops / clicks, minor crackling that I'd like to filter out. Any ideas?

Sep 28, 2009, 03:00 PM	#2
peate HardwareHeaven Senior Member Join Date: Oct 2003 Posts: 409 Rep Power: 57	Re: Need advice: pop / click filter Any good wave editor should be able to filter out pops and clicks. I've used Goldwave with pretty good results.

Sep 29, 2009, 05:50 AM	Thread Starter #4
WxMan1 HardwareHeaven Lover Join Date: Dec 2007 Posts: 221 Rep Power: 40	Re: Need advice: pop / click filter I was hopin' that might accomplishable in the DSP. I was lookin' at the waveform in the E-FX Oscilliscope and came to the conclusion it probably wouldn't be. The graphic frequency displays I seen on the net representing pops / clicks suggest amplitude modulation issues (spikes coming out of the general waveform). However, the base waveform I'm looking at - whalesong - resembles fequency modulation and where the pops / clicks occur, intermodulation distortion is quite apparent. Either at the apex of the wave, the wave can suddenly distort with pronounced lateral component (looks almost like a square wave component). OR imagine a tiny inverted v superimposed at the base of a U (same phenomenon in the positive region, i.e., the U is inverted and a v is superimposed into the apex).

Sep 29, 2009, 02:52 PM	#5
Max M. h/h member-shmember Join Date: Dec 2002 Location: Evil Empire Posts: 2,639 Rep Power: 69	Îòâåò: Need advice: pop / click filter Imho, such kind of clicks are hardly to be fixed in real-time. (Though there're many "real-time" VST plugins for such purpose they all totally suck comparing to any dedicated non-real-time tools). Either way, i would not expect such kX plugin to exist - simply because a convenient algorithms should involve complecated analysis methods that simply won't fit into the k1/k2 DSP memory. __________________ Last edited by Max M.; Sep 29, 2009 at 03:01 PM.

Sep 30, 2009, 02:39 AM	Thread Starter #6
WxMan1 HardwareHeaven Lover Join Date: Dec 2007 Posts: 221 Rep Power: 40	Re: Need advice: pop / click filter Thanx for the replies. I've seen the applications mentioned on the web. Something like that would most likely be what I'd need. It gets even worse than I described. Sometimes embedded in the "meat" of the waveform (near the mid-line), I can get a pop / click that manifests itself like like a short jagged burst of lightning in the general waveform (at that point the wave may reverse entirely, or not). The pop / clicks intuitively resemble somebody pressing and releasing a button on equipment during the intitial recording of the source material, or subsequently, mouse-clicks within mixing software; somebody was enabling/disabling monitor/bypass circuits. The pop / clicks are always paired, separated by a half second or less.