[sdiy] Polyphonic MIDI to CV
Benjamin Tremblay
btremblay at me.com
Fri Jul 9 16:27:16 CEST 2021
Some string synths used a top octave chip and a single filter bank for all the voices. The challenge was making an array of inexpensive vca+envelope circuits for n number of voices, and perhaps extra octave dividers for more tonal effects.
But vcos for each voice of a string synth approaches the cost and complexity of any polyphonic analog synth without adding any features you would not already expect.
Benjamin Tremblay
> On Jul 9, 2021, at 10:18 AM, francesco mulassano via Synth-diy <synth-diy at synth-diy.org> wrote:
>
>
> as a feature, however, I would really like to use the original scheme as much as possible and remain analog as possible (apart from midi, lfo and reverb)
>
>> Il giorno ven 9 lug 2021 alle ore 14:14 Mike Bryant <mbryant at futurehorizons.com> ha scritto:
>>
>> Well I would suggest at least doing the midi through oscillators out in digital. Definitely easier and cheaper as a single mcu will be powerful enough and is needed for midi anyway.
>>
>>
>> Sent from Samsung Mobile
>>
>>
>> -------- Original message --------
>> From: francesco mulassano via Synth-diy
>> Date:09/07/2021 12:17 (GMT+00:00)
>> To: SYNTH DIY
>> Subject: [sdiy] Polyphonic MIDI to CV
>>
>> Hi, I'm thinking of creating a string machine starting from a project from the 70s. Basically, a replica of an analog string machine with new components. The tricky part I think is the full polyphony with the MIDI to CV conversion. There will be no keyboard in the instrument but there will be midi input connection.
>>
>> Do you have any idea, project that does not use commercial modules that would be impossible to implement in the circuit?
>>
>> Thank you
>> Francesco
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