28 lines
611 B
Matlab
28 lines
611 B
Matlab
function duration = computeFFTDuration(x, fs, pad)
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%%%%%%%%%%%%%%%%%%
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%function duration = computeFFTDuration(x, fs, pad)
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%
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% Task: Determine the duration of a DFT/FFT
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%
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% Input:
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% - signal: the input signal to process
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% - fs: the sampling rate
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% - pad: boolean if true, signal is padded to the next power of 2 otherwise the dft is computed on the signal length
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%
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% Output:
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% - duration: duration of the computation process for the DFT/FFT
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%
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%
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% Guillaume Gibert, guillaume.gibert@ecam.fr
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% 27/04/2022
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%%%%%%%%%%%%%%%%%%
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n = length(x);
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if (pad)
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n = 2^nextpow2(n);
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end
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tic
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y = fft(x, n);
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duration = toc; |