shithub: aubio

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fft.c: if real part is zero, have phase = 0

--- a/src/spectral/fft.c

+++ b/src/spectral/fft.c

@@ -154,6 +154,8 @@

   for (i = 0; i < spectrum->channels; i++) {

     spectrum->phas[i][0] = 0.;

     for (j=1; j < spectrum->length - 1; j++) {

+      if (compspec->data[i][j] == 0.) spectrum->phas[i][j] = 0;

+      else

       spectrum->phas[i][j] = atan2f(compspec->data[i][compspec->length-j],

           compspec->data[i][j]);

     }