Changeset 74a4865 for src/spectral/fft.c

Timestamp:

Oct 11, 2009, 12:47:43 PM (15 years ago)

Author:

Paul Brossier <piem@piem.org>

Branches:

feature/autosink, feature/cnn, feature/cnn_org, feature/constantq, feature/crepe, feature/crepe_org, feature/pitchshift, feature/pydocstrings, feature/timestretch, fix/ffmpeg5, master, pitchshift, sampler, timestretch, yinfft+

Children:

202ffa5

Parents:

4f4299d

Message:

src/spectral/fft.c: fix imag boundaries, including for odd fft sizes

File:

• src/spectral/fft.c (modified) (2 diffs)

src/spectral/fft.c

@@ -225 +225 @@
   uint_t i, j;
   for (i = 0; i < compspec->channels; i++) {
-    for (j = 1; j < compspec->length / 2 + 1; j++) {
+    for (j = 1; j < ( compspec->length + 1 ) / 2 /*- 1 + 1*/; j++) {
       compspec->data[i][compspec->length - j] =
         spectrum->norm[i][j]*SIN(spectrum->phas[i][j]);
@@ -235 +235 @@
   uint_t i, j;
   for (i = 0; i < compspec->channels; i++) {
-    for (j = 0; j< compspec->length / 2 + 1; j++) {
+    for (j = 0; j < compspec->length / 2 + 1; j++) {
       compspec->data[i][j] = 
         spectrum->norm[i][j]*COS(spectrum->phas[i][j]);