[sdiy] Digital accumulator VCO core?

cheater cheater cheater00social at gmail.com
Tue Feb 9 10:54:07 CET 2021


On Tue, Feb 9, 2021 at 9:35 AM Brian Willoughby <brianw at audiobanshee.com> wrote:
>
>
>
> On Feb 8, 2021, at 23:46, cheater cheater wrote:
> > (note: you might think you probably don't want to run the
> > synth engine at 12 MHz, but that's what most virtual analogs run at,
> > 192 kHz at 64x oversampling)
>
> Really? Do you have a citation for that?
>
> Are you talking about software virtual analogs (plugins on standard OS inside a typical DAW) or hardware virtual analogs (DSP firmware)?

Citation? Are we in court? :)

Yeah, oops, 64x is a bit much. I was probably thinking of something
else... they usually run at 4x or 8x tops, which I checked using a
double-blinded, randomized, controlled trial with full peer review, I
hope that satisfies the wikipedian in you :)

> Sounds like you're talking about the DAC only, which takes input at 192 kHz PCM and internally calculates delta-sigma at 64x oversampling. There aren't any 24-bit DACs that run at 12 MHz. I've not seen any audio hardware running streams at 12.288 MHz conversion rates.

Nope, see above




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