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Visitor kpallip
Visitor
6,060 Views
Registered: ‎03-26-2009

FFT system generator block help

Hi

 

 

I have been trying out FFT blocks for calculating FFT of the speech signal and again reconstructing it using FFT block in IFFT mode. I was not able to reconstruct the signal exactly. 

I have been using 256 point DFT, scaled version. Also the FFT calculated using MATLAB  does not yield the similar real and imaginary values as by XSG FFT block. I am attaching the simulink XSG model along with the test speech file. Plz have a look at it and comment.

 

Thanks!

 

Vivek 

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3 Replies
5,821 Views
Registered: ‎06-09-2009

Re: FFT system generator block help

 
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5,820 Views
Registered: ‎06-09-2009

Re: FFT system generator block help

If you have any problem, send me: nguyentienduy1512@gmail.com 
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Visitor ammara
Visitor
3,854 Views
Registered: ‎04-10-2011

Re: FFT system generator block help for fft v5 and 256 fft

plz help me on how to use  ff v5 bcoz it is showing abnormal behaviour. i have tried other version that is working fine with same parameters but i have restriction to use fft v5 bcoz of cyclic prefix........

is there special treatment for fft v5?

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