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Applying window before generating fft

Question asked by shekhar on Aug 24, 2010

Hi,

 

What is the best mechanism to apply the generated window to a signal before generating the fft.  The DSP Runtime Library provides functions to generate the window, but no support to apply the window to the signal. There may be a round about way ( I tried using matrix functions for fixed point ..but the results can be improved) but I wanted to know the appropriate mechanism which should be used.

 

Regards,

Shekhar

 

PS: I was using the Chapter 4 of the VisualDSP++ 5.0 C/C++ Compiler and Library Manual for Blackfin Processors as reference.

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