[sdiy] Ideal polyphonic digital reverb

Ben Stuyts ben at stuyts.nl
Wed Mar 24 11:45:35 CET 2021

> On 24 Mar 2021, at 11:23, Adam Inglis (synthDIY) <synthdiy at adambaby.com> wrote:
>> On 24 Mar 2021, at 7:51 pm, Ben Stuyts <ben at stuyts.nl <mailto:ben at stuyts.nl>> wrote:
>> Thanks for that link. Interesting architecture: they use the same 12-bit DAC for the a/d controller (IC 9) as for the output d/a (IC 17). With an added SAR controller chip (IC 8).
> This seemed to be “a thing” in the mid eighties - check the SMs for the Roland SDE-1000, and the Roland/Boss RDD, and RSD units, available online. There is something about the sound of these “vintage digital” units that I love…

Interesting, yes. But it might have been an economic decision. I built and sold an 8-bit audio sampler for the Atari-ST way back then. I remember looking at 12-bit A/D chips and they were eye-watering expensive. So nice crispy 8-bit it was. :-)


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