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STFT, Short time fourier transform

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Suraj Kamya (view profile)

 

Short Time Fourier Transform without using inbuilt function.

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Description

To compute STFT three windows are available in this code Rectangular, Hamming and Hanning. By default window overlapping is set by 50%. One can easily compute the STFT of sound signals.
Results are shown by 'imagesc' & 'surf'
function in single window.

Acknowledgements

This file inspired Short Time Fourier Transform.

Required Products DSP System Toolbox
MATLAB
MATLAB release MATLAB 7.11 (R2010b)
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Comments and Ratings (2)
03 Mar 2015 Pedro Junior

Hi.

I have a noisy signal "X", whose size is an array of "1152074 x 1". I wish calculate the "Short team fourier transform" (STFT) and implemetar in matlab. Generally, we calculate FFT, I use an algorithm that works correctly, I use a Hamming window, with NFFT = 8192 points of the signal. MAs can not do an algorithm to calculate the STFT of the signal. Can someone help me?

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12 Oct 2012 Yu

Yu (view profile)

 

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