[sdiy] Re: [AH] Tassilo helps testing the String Filter prototype

[cheater cheater]

Dirty meaning something similar to ring modulation by 1/(sub-octave generator)?

On 6/25/08, JH. <jhaible at debitel.net> wrote:
> Ah, I see.
>
>  The previous one didn't have any particular overdrive problem, either.
>  If there was anything like that in the samples, it's been the quick and
>  dirty recording setup.
>  For old and new version:
>  Without the Vactrol installed, it clips like any opamp circuit does.
>  With the Vactrol, it gradually goes "dirty" instead of clipping.
>  This is mostly an issue if you increase resonance up to self-oscillation;
>  not so for ordinary operation.
>
>
>  JH.
>
>
>
>  >Over-drive. 8)
>  >On 6/25/08, JH. <jhaible at debitel.net> wrote:
>  > Drive?
>  >
>  >
>  >  JH.
>  >
>  >
>  >  ----- Original Message -----
>  >  From: "cheater cheater" <cheater00 at gmail.com>
>  >  To: "JH." <jhaible at debitel.net>
>  >  Sent: Wednesday, June 25, 2008 12:54 PM
>  >  Subject: Re: [sdiy] Re: [AH] Tassilo helps testing the String Filter
>  >  prototype
>  >
>  >
>  >  I'll have to check the new one's sounds and approve :)
>  >  How does the new one drive?
>  >
>  >  D.
>  >  On 6/25/08, JH. <jhaible at debitel.net> wrote:
>  >  > > So is the string filter finally lifting off?
>  >  >
>  >  >
>  >  > Oh yes - I've made a complete redesign.
>  >  >
>  >  >  Boards are shipping right now to all who have preordered.
>  >  >  There's not much overproduction this time, or to be more precise, a
>  > lot
>  >  > of
>  >  >  orders came after production started.
>  >  >  There's only about 15 PCB sets left.
>  >  >
>  >  >
>  >  >  >I thought it used to be too unstable.
>  >  >  >Some old recordings I heard went into heavy clipping too easily I
>  >  > thought?
>  >  >
>  >  >
>  >  > The problem was that it was only stable with NE5532s of a certain date
>  >  >  code - don't laugh. :)
>  >  >  So I had a perfectly working device, but it would have been commercial
>  >  >  suicide to offer something like that in quantities.
>  >  >
>  >  >  The new version uses a different filter topology alltogether (2-opamp
>  >  > biquad
>  >  >  with Deboo-integrator),
>  >  >  and it works with TL072s.
>  >  >
>  >  >
>  >  >  JH.
>  >  >
>  >  >
>  >
>  >
>  >
>
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