Guys [+girls?], I'm new to the list. I joined because I do research in signal processing (speech recognition) and I have the idea that it ought to be possible to use statistical signal processing to get much better FM radio reception than a normal tuner. I basically want to process the quadrature output (the 2 signals that you get out after multiplying by sin + cos and lopass filtering) in a different way, not just doing atan but doing a bunch of predictive modeling at that stage, assuming the signal is a mix of multiple stations + noise, and trying to separate the signals out. I want to ask this list two things: (1) is anyone aware of anyone having tried something like this in the past (or know what search terms I might use to find this out), and (2) Could anyone give me to work with, the sampled output at the quadrature stage (I assume this would be something like 2 synchronized .wav or a stereo .wav file (does it support stereo?), sampled at quite a high frequency). Dan
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