On Sun, Feb 22, 2004 at 01:54:19PM -0800, Alexandre Souza enlightened us
thusly
> > My project now is wanting an alarm system that consist of 16
> > different
> (may
> > be more...) sound variation. Each sound represent a status
> > condition of the plant. So what I need now is a software to
> > simulate what the sound will be for
> each
> > status, before the alarm hardware is developed. I am currently
> > using downloaded software to play around with the sound. However,
> > the sound (frequency) can not be played intermittently but
> > continuously flat. Can someone here help to look for the software
> > that we enable to adjust
> the
> > frequency and interval/ period ?
>
> You can use a good old EPROM with voiced stored in raw, 8KHz (or
> even 5 KHz) with a R-2R converter on the data output ;o) Cheap,
> simple and easy! :oD
>
I sense a lack of imagination being exercised. To illustrate: Elektor
once did an egg timer with 3 cmos chips which used 2 or 3 oscillators to
produce a couple of short bursts of one frequency, and then a longer
burst of a different one, giving a very believeable "BUK BUK BUK
BWAAAWK!" like a real live hen. Invent.
--
With best Regards,
Declan Moriarty.
--
Author: Declan Moriarty
INET: [EMAIL PROTECTED]
Fat City Hosting, San Diego, California -- http://www.fatcity.com
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