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January 15th, 2009, 05:05 PM
#1
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.
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January 16th, 2009, 03:05 AM
#2
Re: Sound analysis
Did you see Audio/Video on the Codegugu.com or codeproject.com?
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January 16th, 2009, 02:59 PM
#3
Re: Sound analysis
Is there a response to my question?
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January 16th, 2009, 03:25 PM
#4
Re: Sound analysis
Originally Posted by jgabase
Is there a response to my question?
Sure looks like one to me.
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January 16th, 2009, 03:59 PM
#5
Re: Sound analysis
Maybe looking at this could be a start.
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January 17th, 2009, 11:17 AM
#6
Re: Sound analysis
and see all MS PSDK samples (Dsound or mm apis), which detail exactly all that.
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January 17th, 2009, 04:22 PM
#7
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
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February 2nd, 2009, 03:38 PM
#8
Re: Sound analysis
Thank u very much for your help. It seem I have to study a lot...
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