[sdiy] Digital accumulator VCO core?

Vladimir Pantelic vladoman at gmail.com
Thu Feb 11 20:21:48 CET 2021


On 11.02.21 20:19, Vladimir Pantelic wrote:
> On 11.02.21 08:46, cheater cheater wrote:
>> Here's one thing I've been wondering about. Is there a form of ADC
>> where every sample represents the total charge that passed through a
>> conductor since the last sample? Normally, an ADC will only sample
>> voltage (or current) at the time of sampling, but we don't really know
>> anything about what happened between sampling intervals. 
> 
> yes, the same way we don't care for the values of sound pressure between
> each sample interval at 1/44100s (or 96k or 192k...) Even if they exist,
> they would not add any information we can hear.

proper antialiasing assumed of course



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