Re: [LAD] fftw3 issue with transform higher than 1024

From: Gabriel M. Beddingfield <gabriel@email-addr-hidden>
Date: Mon Jul 27 2009 - 14:30:34 EEST

On Mon, 27 Jul 2009, Fons Adriaensen wrote:
>>
>> If your data is 5120 samples... either truncate it to 4096 samples or pad
>> it with zeros util you have 8192 samples.
>
> FFTW3 can handle almost any size you want. If the size has
> a large prime factor the transform may be significantly
> slower, but for something like 5120 = 5 * 2^10 the speed
> loss will be quite moderate.

My mistake... thanks for clearing that up.

Peace,
Gabriel

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Received on Mon Jul 27 16:15:02 2009

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