LF: sound

To: list-fargo@lists.ticalc.org
Subject: LF: sound
From: Hmlacage@aol.com
Date: Sat, 19 Jul 1997 07:30:35 -0400 (EDT)
Reply-To: list-fargo@lists.ticalc.org

i got an idea: we could control the frequency at which the speaker will work
with a line : just controling the fact that the line is high or low... We
would need to adjust the frequency of this line to the frequency to be
made...
Then using the second line, we could code in frequency the pitch ( i mean the
volume of the sound, the height of the sound produced ). Then , with a simple
OA , i am pretty sure it would be easy to control the voltage send to the
speaker... 
anyone got a guess ? An idea ? 
mathieu, <hm lacage@aol.com>

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