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  1. 26th Jun 2007 17:37 #1
    spittle
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    I took a vcd that I had and extracted the audio from it. That audio file is in mp2 format. I can convert it to mp3 but the problem is that the audio file has the music but also has sounds from the movie that it came from. How can I separate the streams and just extract the music from the vcd.
    Thanks,
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  2. 26th Jun 2007 17:47 #2
    edDV
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    Find a way to discriminate "movie" sounds from music. This could be by frequency (study up on Fast Fourier transform http://en.wikipedia.org/wiki/Fast_Fourier_transform ) the basis of most digital audio processing. The idea is to separate sound by frequency or patterns of frequency and then design a filter.

    All audio tracks leave a signature over time. Figure out a way to isolate one from the other.
    http://ccrma.stanford.edu/overview/dsp.html#SECTION00085600000000000000
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