Casio CZ/ VZ/ FZ - Pro Series

On Wed, Jan 25, 2012 at 5:59 AM, charlie 'chop' copp <
charles.copp@...> wrote:

> **
>
> i wish i knew how to form a fm waveform with mathmatics so i could write my
> own sample sysex sender ,
>

Using  pseudo-code it would be something like this:

carrierFreq = 440
modulatorFreq = 220
sampleRate = 44100
amp = 10000

for i = 0 to samplesize - i
  timePos = i * 360 / sampleRate   //or 2*PI if you use radians instead
  samplebuffer [i] = sin (carrierFreq*timePos + sin
(modulatorFreq*timePos)) * amp
next

That piece of code should be quite easy to convert to any other language
(Basic, Pascal, C, Matlab, etc.)

By the way, you may be interested in C-Sound programming language:

http://www.csounds.com/

You can recreate virtually any synth sound (FM, analogue, DSP processing,
etc.) with a few lines of code and export the data in binary format.


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