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Correct flattop window coefficients

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The window amplitude is now  normalised to 1.0.

Signed-off-by: Erik de Castro Lopo <erikd@mega-nerd.com>
This commit is contained in:
Thomas Zander 2017-06-29 20:43:33 +02:00 committed by Erik de Castro Lopo
parent 1b5c09e4c6
commit 68c5886db9
1 changed files with 1 additions and 1 deletions
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src/libFLAC/window.c
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@ -109,7 +109,7 @@ void FLAC__window_flattop(FLAC__real *window, const FLAC__int32 L)
FLAC__int32 n;
for (n = 0; n < L; n++)
window[n] = (FLAC__real)(1.0f - 1.93f * cos(2.0f * M_PI * n / N) + 1.29f * cos(4.0f * M_PI * n / N) - 0.388f * cos(6.0f * M_PI * n / N) + 0.0322f * cos(8.0f * M_PI * n / N));
window[n] = (FLAC__real)(0.21557895f - 0.41663158f * cos(2.0f * M_PI * n / N) + 0.277263158f * cos(4.0f * M_PI * n / N) - 0.083578947f * cos(6.0f * M_PI * n / N) + 0.006947368f * cos(8.0f * M_PI * n / N));
}
void FLAC__window_gauss(FLAC__real *window, const FLAC__int32 L, const FLAC__real stddev)