[sdiy] Fast envelope follower circuit needed..

cheater cheater cheater00 at gmail.com
Sat Apr 6 05:21:37 CEST 2013

For one I'd love to see the conversation ... feel free to forward to
the list if Bernie is OK with it!


On Fri, Apr 5, 2013 at 6:36 PM, Richie Burnett
<rburnett at richieburnett.co.uk> wrote:
> Hi all,
> A few weeks back I posted a response here recommending the OP to investigate
> using the Hilbert Transform to extract the envelope from a signal.  This was
> because I've had good results using this in some specific DSP products.
> However, Bernie Hutchins initiated some interesting off-list discussions
> about this, and he has pointed out to me several example situations where
> this method does not yield the envelope that a synth enthusiast might
> intuitively expect to see!
> I don't want to go into this in too much depth because the thread didn't get
> much response anyway, and Bernie has looked into this in far more depth than
> I did, some years previously.  He has kindly agreed to me including a link
> to his thorough analysis here:
> http://electronotes.netfirms.com/AN355.pdf
> My appologies for any confusion caused.
> Best regards,
> -Richie,
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