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Discussion Groups | Audio Signal Processing | how to comput 2N point array by using N point fft?

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how to comput 2N point array by using N point fft? - diao...@126.com - Mar 20 8:06:30 2006



everyone:
   hi.
   I want to save time in the process of fft,I know there is one method of
using a complex N point fft to comput a real 2N point array.But I dont know how to do it .can
anyone help me?


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