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fixed coeffs for bw_src(_int).h for real

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This commit is contained in:
Stefano D'Angelo 2023-04-04 15:17:37 +02:00
parent c05b6d84db
commit 5eed8c2878
2 changed files with 2 additions and 2 deletions
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2
include/bw_src.h
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@ -124,7 +124,7 @@ static inline void bw_src_init(bw_src_coeffs *BW_RESTRICT coeffs, float ratio) {
const float T = bw_tanf_3(1.570796326794896f / (float)fc);
const float T2 = T * T;
const float k = 1.f / (T * (T * (T * (T + 2.613125929752753f) + 3.414213562373095f) + 2.613125929752753f) + 1.f);
coeffs->b0 = T2 * T2;
coeffs->b0 = k * T2 * T2;
coeffs->b1 = 4.f * coeffs->b0;
coeffs->b2 = 6.f * coeffs->b0;
coeffs->a1 = k * (T * (T2 * (4.f * T + 5.226251859505504f) - 5.226251859505504f) - 4.f);

2
include/bw_src_int.h
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@ -130,7 +130,7 @@ static inline void bw_src_int_init(bw_src_int_coeffs *BW_RESTRICT coeffs, int ra
const float T = bw_tanf_3(1.570796326794896f / (float)fc);
const float T2 = T * T;
const float k = 1.f / (T * (T * (T * (T + 2.613125929752753f) + 3.414213562373095f) + 2.613125929752753f) + 1.f);
coeffs->b0 = T2 * T2;
coeffs->b0 = k * T2 * T2;
coeffs->b1 = 4.f * coeffs->b0;
coeffs->b2 = 6.f * coeffs->b0;
coeffs->a1 = k * (T * (T2 * (4.f * T + 5.226251859505504f) - 5.226251859505504f) - 4.f);