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Rupam Das
Rupam Das • Jan 20, 2012

Simple FFT with Matlab

FFT or Fast Fourier Transform is an age old concept of digital implementation of DFT. Even after 50 years, FFT is kind of like nightmares to many engineers.

So if you have DSP phobia and if you find FFT concepts difficult to understand, you can read the post:
https://www.codeproject.com/KB/recipes/Simple-FFT-Filter-Matlab.aspx

or for any queries related to FFT,
https://grasshoppernetwork.com/forumdisplay.php?fid=43
sid_thewall
sid_thewall • Feb 17, 2012
Rupam Das
FFT or Fast Fourier Transform is an age old concept of digital implementation of DFT. Even after 50 years, FFT is kind of like nightmares to many engineers.

So if you have DSP phobia and if you find FFT concepts difficult to understand, you can read the post:
https://www.codeproject.com/KB/recipes/Simple-FFT-Filter-Matlab.aspx

or for any queries related to FFT,
https://grasshoppernetwork.com/forumdisplay.php?fid=43
Hi I am working on a project which involves acquiring heart sounds and analysing them using matlab.

In this regard, I require the sampling frequency of the sounds which i collected from the following databases:

https://www.med.umich.edu/lrc/psb/heartsounds/index.htm
https://depts.washington.edu/physdx/heart/tech.html

Without the sampling frequency I woont be able to design digital filters and further analysis in the frequency domain is impossible. Can you give me solutions to this problem?

I used the wavread function in matlab.

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