C
[email protected]
- Jan 1, 1970
- 0
The solution presented at the following link describes how to
frequency modulate a DC-20Hz signal onto a relatively high carrier
frequency to get through the soundcard's AC-coupling capacitor, and
then demodulate the signal in software using Matlab.
http://www.elecdesign.com/Articles/Index.cfm?AD=1&ArticleID=2641
Unfortunately I don't have Matlab, only Cool Edit Pro. If possible,
what sound editing functions are needed to demodulate the FM signal,
and what would the procedure be?
For example if I were to demodulate an AM signal in CEP, I would use
the "Distortion" function to chop the negative half cycles, then use
the "Filter" function to filter out the remainder of the carrier.
frequency modulate a DC-20Hz signal onto a relatively high carrier
frequency to get through the soundcard's AC-coupling capacitor, and
then demodulate the signal in software using Matlab.
http://www.elecdesign.com/Articles/Index.cfm?AD=1&ArticleID=2641
Unfortunately I don't have Matlab, only Cool Edit Pro. If possible,
what sound editing functions are needed to demodulate the FM signal,
and what would the procedure be?
For example if I were to demodulate an AM signal in CEP, I would use
the "Distortion" function to chop the negative half cycles, then use
the "Filter" function to filter out the remainder of the carrier.