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Old June 5th 04, 12:33 PM posted to uk.rec.audio
Don Pearce
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Posts: 1,412
Default What's happening here?

On Sat, 5 Jun 2004 11:30:52 +0100, "Keith G"
wrote:

Ok, I'll buy that - presumably the 'autogain control circuit' is in the mic,
Mike? (New component, new phenomenon....) But why/how is the waveform pulled
down from the 'centreline' or is that just a 'software thing'?


The big pulse puts quite a hefty charge onto the input coupling
capacitor. The movement negative and subsequent recovery are simply
that charge leaking away again.

d
Pearce Consulting
http://www.pearce.uk.com