shithub: aubio

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merge from banane

--- a/src/fft.c

+++ b/src/fft.c

@@ -120,9 +120,9 @@

 void aubio_fft_getnorm(smpl_t * norm, fft_data_t * spectrum, uint_t size) {

   uint_t i;

-  norm[0] = SQR(spectrum[0]);

-  for (i=1;i<size/2;i++) norm[i] = (SQR(spectrum[i]) + SQR(spectrum[size-i]));

-  norm[size/2] = SQR(spectrum[size/2]);

+  norm[0] = spectrum[0];

+  for (i=1;i<size/2;i++) norm[i] = SQRT((SQR(spectrum[i]) + SQR(spectrum[size-i])));

+  norm[size/2] = spectrum[size/2];

 }

 void aubio_fft_getphas(smpl_t * phas, fft_data_t * spectrum, uint_t size) {