Re: [LAU] audio latency question

On Sun, 20 Mar 2011 18:52:24 +0000
andy baxter <andy@email-addr-hidden-online.co.uk> wrote:

<snip>

> The only thing I found problematic in his design wasn't to do with
> usability but the expense (and also physical bulk) of having to use a
> high end audio interface as part of the electronics. This put me off
> building one myself, so I am thinking of having a go at a very similar
> design but using a resistive rather than capacitive pressure sensing
> technique. I.e. basically the same design but using a sheet of carbon or
> metal loaded conductive rubber and measuring the resistance changes when
> you scan through the matrix. If this works, it will hopefully produce
> similar results but with much simpler electronics and firmware.
>
> andy

This is vastly overcomplicated. Once you understand the concept itself (which
really is good), a set of dedicated oscillators and detectors (tuned
amplifiers+A/D converters) would by much simpler, smaller and reliable. I would
then be inclined to try to embed the electronics in the device itself, and bump
up the operating frequency as much a possible to improve the response time of
the detectors.

-- 
Will J Godfrey
http://www.musically.me.uk
Say you have a poem and I have a tune.
Exchange them and we can both have a poem, a tune, and a song.
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