Hi, I have a question about buffer function and about fft function.

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If someone can help me, I would like to write equal functions in C language. Thanks.

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Walter Roberson 2024-1-27

With buffer overlap or without buffer overlap ?

Answer 1

Walter Roberson 2024-1-27

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Buffer without overlap is easy.

take the length of the signal
do an integer division by the buffer length to get the number of buffers
take the signal length modula the buffer length
if the modula is non-zero add one to the number of buffers
allocate a chunk of memory that is (number of buffers times buffer length) long.
memcpy the signal into the buffer
if the modulo of the signal length and the buffer was non-zero then initialize the rest of the buffer to zero

Mihajlo 2024-1-28

I would like to do it with overlap. Thank you.

Mihajlo 2024-1-28

It says that It can be converted using MATLAB Coder, that I have. But I dont know how to do this.