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Subject: Re: [korgpolyex] Re: HPF?

From: Michael Hawkins <korgpolyex800@...>
Date: 2011-06-02

No, the NJM2069 OKI chip that was custom made for Korg does not have a HPF.

I would be willing and able to add both an HPF and a limiter into the AtomaHawk PCB design.

But someone else would need to provide the circuit design itself.

Mike


From: john m <jmaddocks1975@...>
To: korgpolyex@yahoogroups.com
Sent: Thu, June 2, 2011 6:48:14 AM
Subject: [korgpolyex] Re: HPF?

 

Sounds interesting, does the poly800 have a high pass on the circuit already?

--- In korgpolyex@yahoogroups.com, "k9k9dog" <domgoold@...> wrote:
>
> what do people think about (the possibility of) a HPF?
> i've been studying the Juno quite closely for a few weeks,
> especially the 'hpf', which is in fact a switch with 4
> settings, inserted in the path ∗after∗ the lpf(although it
> appears to be before, on the panel).
>
> i don't know how the korg filter would lend itself to this,
> but with a juno it can be helpful as a lowcut(and lowest
> setting is a 'bass boost' using a bandpass). i've emulated it
> reasonably successfully in software and understand how it works.
> and if implemented, could be controlled and recalled(or disabled)
> with logic switching. doesn't seem completely incompatible with
> korg800 structure at all.
>
> also wondering about some kind of limiter, as i read atomsmasher
> saying it's a good thing to have around, with res settings...a
> simple onboard circuit, is that worth thinking about?
>