Re: Finding the main frequency of an input audio signal
- From: Rob <robert.bielik@xxxxxxxxxx>
- Date: Thu, 30 Aug 2007 00:21:38 -0700
On Aug 30, 3:29 am, wi...@xxxxxxxxx wrote:
This seems interesting. Do you have any pointers where I can learn
this from (i.e. something you consider a good thing for a start)?
Check for: Autocorrelation, AMDF (average mean difference function),
Peak picking in the FFT is good. Wavelets should work to (but I
have no idea how because I consider them too abstract, but that's just
me)
All of these alas do require some checking of the math, but more
importantly (several years ago when I asked
the group almost the same question, and r b-j said I asked the right
questions :) given the data any of the
above methods supply, you have to do some "smart" interpreting of the
data.
What is considered smart for one type of input signal might not be so
smart for another. In short, all of the above methods will work, but
to work well, the data they supply needs to be "interpreted".
/Rob
.
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