[sdiy] Filter cut off DAC

[rsdio at audiobanshee.com]

On May 21, 2018, at 10:14 AM, Gordonjcp <gordonjcp at gjcp.net> wrote:
> On Mon, May 21, 2018 at 03:53:49PM +0100, paula at synth.net wrote:
>> Random question,
>> 
>> How many bits is "enough" for controlling the filter cut off on a VCF?
>> I would start with say 12, but would 16 be better? or 24?
>> At some point there's a cost trade off.
>> 
>> Thoughts?
> 
> The Ensoniq Mirage and ESQ-family get away just fine with 8 bits of
> resolution.  I'm guessing lots of other similar-era kit does too ;-)

Sure, but the Mirage is an 8-bit sampler, so it makes sense that the VCF CV wouldn’t be any more accurate than the samples. I mean, it’s not the same thing, but the tech limitations were already there.

Brian