[sdiy] PPG Wave SSM2044 filter

[cheater cheater]

With a sampler like the Wave, they use the filter as a smoothing
interpolator as well. So you might the resonance to be lower, to hide
the aliasing. But wouldn't a lower cap make the resonant frequency
higher?

D.

On Fri, Jan 22, 2010 at 12:56, Colin f <colin at colinfraser.com> wrote:
>
>> That or an alternative way to affect the gain needed for self
>> oscillation (although I can't really think why they'd want to).
>
> That's a thought - the response curve for the Q cv input on the 2044 is not
> linear.
> Might reducing the size of that cap make it more so ?
> That could have given a more usable control curve from a low-resolution
> linear DAC.
> Though I still think the most likely explanation is that they used the parts
> they could get.
> Or possibly someone mis-read the value on the datasheet.
>
> Cheers,
> Colin f
>
>
>
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