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question about FFT bin index ?

August 26, 2006 | 9:19 pm

I am reading a paper dealing with FFT.
It says that "fft~ 1024 1024 0" will output bin index from 1, 2, 3, ….to 1023.

I just don’t know why there are only 1023 bin indexes instead of 1024. I thought there should be 1024 frequency bins with index from 1 to 1024 when the frame size is set to 1024. Am I wrong ? Or if the first frame is actually blank with index 0 to make 1024 index numbers in total ?

Thanks.

Chien-Wen


August 26, 2006 | 9:27 pm

Quote: Cheng Chien-Wen wrote on Sat, 26 August 2006 14:19
—————————————————-
> I am reading a paper dealing with FFT.
> It says that "fft~ 1024 1024 0" will output bin index from 1, 2, 3, ….to 1023.
>
—————————————————-

The bins are numbered 0 to 1023. (stated in the help file, but I just verified using capture~)

mzed


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