[sdiy] using a dac as a digitally controlled amplifier

[Roman Sowa]

One vintage example is FM in Oberheim Matrix synths.
You get precision and repetitive stable amplitude needed for FM.

Roman

W dniu 2024-08-04 o 19:13, Benjamin Tremblay via Synth-diy pisze:
> Is there any practical application for synthesizers to pass an analog signal in as a reference voltage to a DAC?
> 12 bit DACs are pretty cheap these days, but VCAs aren’t expensive either.
> Aside from cost, why would I want to use a DAC as a “DCA”?
>
> I can imagine making a state variable filter using a dual DAC as the ‘gain' stages.
> It’s the kind of thing I would try just to see how well it worked…
>   
> I suppose you inject one or more DACs into an oscillator to directly control pitch and waveform, some kind of DCO where stability and simplicity are cost-effective.
>
>
>
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