[sdiy] Filter cut off DAC

[paula at synth.net]

Scott,

  Thanks, I should've said, I'm more thinking in terms of things like 
ADSRs/LFOs, etc

Paula

On 2018-05-21 16:30, Scott Gravenhorst wrote:
> Going from my FPGA experiences, I'd say 10 or 12 is a good starting
> point if not a
> good end point.  I used a 12 bit DAC and it made good quality audio
> (when the level
> used all 12 bits of resolution).  A VCF would probably not even need 12 
> bits of
> cutoff resolution IMO.  MIDI uses 7 bits of resolution for most
> things, which can
> be a tad low for some things, but for filter cutoff it's probably OK
> as long as you
> don't need to change it during a performance (then you *might* get a
> zipper effect
> and that can be digitally removed).
> 
> YMMV
> 
> 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?
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> 
> -- ScottG
> ________________________________________________________________________
> -- Scott Gravenhorst
> -- http://scott.joviansynth.com/
> -- When the going gets tough, the tough use the command line.
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