Sound analysis
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Thread: Sound analysis

  1. #1
    Join Date
    May 2008
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    44

    Sound analysis

    How can I get and analyze sounds coming from the mic? (analysis of frecuencies)
    Thanks Thanks Thanks a lot if you can help me.

  2. #2
    Join Date
    Jan 2009
    Posts
    14

    Re: Sound analysis

    Did you see Audio/Video on the Codegugu.com or codeproject.com?

  3. #3
    Join Date
    May 2008
    Posts
    44

    Re: Sound analysis

    Is there a response to my question?

  4. #4
    GCDEF is offline Elite Member Power Poster
    Join Date
    Nov 2003
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    12,067

    Re: Sound analysis

    Quote Originally Posted by jgabase View Post
    Is there a response to my question?
    Sure looks like one to me.

  5. #5
    Join Date
    Jun 2005
    Posts
    315

    Re: Sound analysis

    Maybe looking at this could be a start.

  6. #6
    Join Date
    Dec 2008
    Posts
    114

    Re: Sound analysis

    and see all MS PSDK samples (Dsound or mm apis), which detail exactly all that.

  7. #7
    Join Date
    May 2002
    Posts
    1,723

    Re: Sound analysis

    This really depends upon what you want to do and what you mean about sound analysis. This is really a very complex subject. To gain some understanding, you might want to google 'digital signal processing'.

    Some time ago, I saw a TV doc that showed a violinist / physicist comparing the frequencies and overtones of a bowed A string . He was able to demonstrate that a fine old Italian violin was superior to a modern fiddle because of the former's capability of producing more extensive harmonic overtones. I thought that was pretty cool, so I started writing programs to do something like that. (Actually, there a quite a few free programs out there that can help you do that - i.e., see Real Software).

    While I am opposed to self-promotion of one's own software here on Codeguru, I have made available (presently for free) a program called 'SoundPlot' that can render recorded sounds as planes and surfaces and analyze frequencies. You can download this program at http://www.pliatech.com/soundplot.

    If you wish to do your own programming, I suggest you first aquaint yourself with Discreet Fast Fourier Transform (DFFT) code, many C++ applications are available for free.

    Hope this helps.
    mpliam

  8. #8
    Join Date
    May 2008
    Posts
    44

    Re: Sound analysis

    Thank u very much for your help. It seem I have to study a lot...

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