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From: "Bill McKinney"
Subject: Q: F.W. Rectifier vs. Env. Follower
Date: Fri, 20 Sep 2002 18:45:20 +0000 (UTC)
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I'd like to convert a varying AC waveform (i.e. audio) to a varying DC
control voltage to drive a VCA. I'm well aware I can use an envelope
follower to do this, but I'd like to know if I can go even simpler.
With this in mind, has anybody ever used a full-wave rectifier to create
a control voltage from an audio signal? I've been testing the concept
and it seems like it would work - I'm just curious if there any glaring
disadvantages to using the rectifier circuit instead of the envelope
Sorry about all the crossposts, but I'd like to get a variety of
opinions on this.
Thanks in advance,
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