[sdiy] Six/6 voice synths

[Scott Nordlund]

In Roland's case (Juno/JX synths) it's also convenient because the 82C53 chips that drive the DCOs have 3 counters each.

The Prophet 5 is a little more curious to me, as I can't see 5 voices as being anything but inconvenient, from a technical perspective.

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> Date: Fri, 31 Jul 2009 12:09:57 +0200
> From: fanwander at mnet-online.de
> To: synth-diy at dropmix.xs4all.nl
> Subject: Re: [sdiy] Six/6 voice synths
>
> Hi Tom
>
>> Just a quick question; Is there any technical reason why so many
>> polyphonic synths have six voices?
> I am not too deep into the programming aspect of a polysynth, but beside
> the marktting and price aspect, there might be a technical aspect. If
> you have to distribute the values for only six voices to the S&H-stages,
> you have two steps in the adressing cycle, which could be used for
> something else. Example at the JX3P the adress #06 and #07 address
> parameters which are common to all voices: DCO-fine tune, DCO-balance,
> resonance and highpass filter cutoff.
>
> Florian
>
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