[music-dsp] re: projects
improvization at rocketmail.com
Thu Feb 17 17:23:54 EST 2005
Could anyone suggest how I may create a macro in Adobe Audition, or C, to do the following
You're simulating an op amp comparator circuit with TWO inputs:
1) Your audio (.WAV file) and
2) An ultrasonic-frequency Sawtooth or Triangle waveform.
Since a comparator "compares" one waveform with another, this really
means, "SUBTRACT the instantaneous value of one input wave from the
Then, THRESHOLD them. Which means, once your code has subtracted a
sample of the audio from a sample of the 30 KHz triangle wave, then
compare them like this:
"If the audio is greater in amplitude than the triangle, let the
comparator output be "1" or HI in a digital sense.
ELSE, let the output be "0" or LOW.
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