VCA (to log or not to log...)

[Haible Juergen]

	>I'm driving a VCA (3080 or 13700...) from the envelope of a guitar.
I've
	>extracted
	>the envelope with a peak follower (for fast attack with low
ripple...
	>sure its not average or RMS, but it does work for guitar...).   Now
I
	>want to re-impose this envelope on a
	>synth waveform.
	>
	>To LOG or not to LOG that is the question.  My guess is that linear
is
	>the way to go,
	>as I have the exponential decay of the actual guitar preserved in
the
	>envelope.
	>
	>But maybe someone has other opinions ???  comments please.

The answer is simple: If your peak detector is linear -> linear VCA.
If your peak detector has a log function included -> expo VCA.

JH.