[CM] FM how-to question

[Jon Monroe]

Hello,

Apologies in advance if this is the wrong place for this, or if it's 
already been answered someplace.

I've been swimming through documentation for several days trying to get 
this to work correctly -- I think I'm doing it the hard way :)   I'm still 
a learning audio newbie :)

I basically want to use snd/clm to process a wave file using a basic FM 
function, and then save the resultant output to a new wave file.

This doesn't have to be "true" FM -- as in I don't need the derivative of 
the modulation signal (the input wave file). It can be text-book phase 
modulation.

So, I have the following formula:
cos(2*pi*f*t + f(t)),

where f is the carrier freq and t is the relative time, and f(t) is the 
modulating signal relative to time (in my case, the input wave file).

I have snd-6/guile 1.6.4 and CLM compiled and installed on a Linux 2.4.18 
box, and I've run through some sample scripts (the oboe!!) and it works great!

I guess I'm looking for an example on how to perform the above FM process.

Thanks for any help,

Jon