[sdiy] Idea for tuner/display

[Jay Schwichtenberg]

Tim,

I been thinking about the same type of thing.

One problem I have with the counter type stuff is the speed. At low
freqencies these are slow. I was wondering if there might be a way to do it
like a guitar tuner. They seem to work faster. I think the way they usually
work is with a beat frequency.

Also when doing counters you have to do some averaging to keep the readout
from flickering in the low digits.

LCD vs LED. If you are a typical electronic musician you probably work in
dark places. LCD will need a backlight to be seen in the dark. While LCDs
take less to run from the uP (vs scanned LEDS) they are slower.

Just some thoughts.
Jay

> -----Original Message-----
> From: owner-synth-diy at dropmix.xs4all.nl
> [mailto:owner-synth-diy at dropmix.xs4all.nl]On Behalf Of Tim Ressel
> Sent: Sunday, January 26, 2003 11:17 AM
> To: Synth-Diy
> Subject: [sdiy] Idea for tuner/display
>
>
> Hey all,
>
> I have a whacky idea for a uP tuner/note display that
> I want to run past y'all. This would be a little box
> with an LCD screen and an input jack or two. The uP
> behind the screen would use its timer to measure the
> input frequency and perform some math tricks to come
> up with the nearest note and how far from that note
> the input was. Then it would display the info on the
> LCD. An even more whacky version would do this for two
> inputs and also calc the interval between the two.
>
> Comments? Ideas?
>
> --Tim
>
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