[sdiy] digital potentiometers as "volume" control

[dj hohum]

I have a bunch of digital pots that I've been thinking about toying
with, although, I'd probably use VCAs in that application.

daryl

On 7/24/07, Tom Haber <tom.haber at uhasselt.be> wrote:
> Hey all,
>
> I'm currently designing a filter bank. The idea was to have 2 filters that
> can be placed
> in serial or parallel or anything in between.
>
> To allow full flexibility, it has 6 potentiometers.
> http://research.edm.uhasselt.be/thaber/junk/filter.png (the boxes are the
> filters)
>
> Are digital potentiometers a good way to accomplish this? The filters are
> controlled using
> multiplying D/A converters with filtering caps to counter zippering.
> Obviously zippering is
> an issue with the potentiometer approach.
>
> Are there different solutions?
>
> Regards,
> Tom Haber
>
>
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