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Re: Repairing Clipping

Subject: Re: Repairing Clipping
From: "Raimund" animalsounds
Date: Sat Mar 20, 2010 1:13 pm ((PDT))
Dan Dugan wrote:

>The overload distortion in your recording, unfortunately, isn't >"clipping=
." It's the worst kind of electronic mangling, including >peak inversion an=
d blanked intervals where the waveform is >completely lost. Pro gear should=
n't ever do that. I'd experiment to >find out what was at fault and get rid=
 of it (the gear).

Dan, I believe that this is still clipping. However, the clipping did not o=
ccur at the final (DC-coupled) stage on the AD converter input of the recor=
der, but in a preceding stage of the AC-coupled signal chain. This high-pas=
s filter effect can be identified by the exponential charge/discharge patte=
rns on the waveform (which correspond to the clipped intervals that should =
look like a rectangular waveform before the signal is being high-pass filte=
red).

I would agree that the clipping problem probably lies in the mixer or perha=
ps also in the microphone. In my experience, similar effects can also show =
up in professional equipment when the microphone picks up extremely loud lo=
w-frequency signal, such as wind.


Regards,
Raimund







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