[sdiy] Best AVAILABLE OTA for building new designs?

[Jacob Watters]

"3) Will there be a problem mixing 48 key outputs together?  Will clipping
be a problem?  Obviously, all 48 keys will never be played at the same
time, but still."

What I did for a top octave synth that I made is I added gain control to
the mixer. Then I could turn it up when playing mono or low polyphony, and
turn it down when playing dual chords like an organ.

Another option is to aim for a max note count. The max notes likely to be
played at once is probably around 8. Maybe plan for that, and adjust
accordingly.

*Jacob Watters*
JacobWatters.com <http://jacobwatters.com/>


On Mon, Aug 12, 2024 at 4:45 AM Mike Bryant <mbryant at futurehorizons.com>
wrote:

> Except for noise floor in a mic amp with the gain wound up to maximum
> where there might be a very slight difference, I'll do the same for a 5532
> and any of these fancy op-amps :-)
>
> Of course there are op-amps which do sound different - the ones with added
> distortion.  Maybe the BA662 also adds something that way ?
> ------------------------------
> *From:* Synth-diy <synth-diy-bounces at synth-diy.org> on behalf of
> Gordonjcp <gordonjcp at gjcp.net>
> *Sent:* 12 August 2024 09:13
> *To:* synth-diy at synth-diy.org <synth-diy at synth-diy.org>
> *Subject:* Re: [sdiy] Best AVAILABLE OTA for building new designs?
>
> On Sun, Aug 11, 2024 at 12:09:35PM -0400, Ben Bradley via Synth-diy wrote:
> > I was thinking of the Roland chip (BA662A/BA662B) that hasn't been
> > mentioned, and I came across this discussion that may be helpful. For
> > high-quality "real VCAS" there's the chips from THATCorp, but they're
> > of course quite expensive compared to OTAs.
>
> If anyone can tell the difference between a BA662 and an LM13700 VCA in an
> honest double-blind test, I'll buy them the best Juno 6 I can find.
>
> After they test clean for cocaine.
>
> --
> Gordonjcp
>
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