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docs: explain forward and inverse normalization

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2026-10-19 11:51:48 +08:00
parent 45b3ad4c08
commit d3a85a9e01
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kiss_fftr.h
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@@ -44,6 +44,9 @@ void KISS_FFT_API kiss_fftri(kiss_fftr_cfg cfg,const kiss_fft_cpx *freqdata,kiss
/*
input freqdata has nfft/2+1 complex points
output timedata has nfft scalar points
For floating-point builds, a kiss_fftr / kiss_fftri round trip returns
nfft times the input; divide timedata by nfft to recover the input.
Fixed-point builds scale internally and use a different convention.
*/
#define kiss_fftr_free KISS_FFT_FREE