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fixed initial state in bw_clip and bw_satur

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This commit is contained in:
Stefano D'Angelo 2023-04-29 06:34:19 +02:00
parent b811796e35
commit 2d101a315e
2 changed files with 7 additions and 6 deletions
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6
include/bw_clip.h
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@ -216,9 +216,9 @@ static inline void bw_clip_reset_coeffs(bw_clip_coeffs *BW_RESTRICT coeffs) {
} }
static inline void bw_clip_reset_state(const bw_clip_coeffs *BW_RESTRICT coeffs, bw_clip_state *BW_RESTRICT state) { static inline void bw_clip_reset_state(const bw_clip_coeffs *BW_RESTRICT coeffs, bw_clip_state *BW_RESTRICT state) {
(void)coeffs; state->x_z1 = bw_one_pole_get_y_z1(&coeffs->smooth_bias_state);
state->F_z1 = 0.f; const float a = bw_absf(state->x_z1);
state->x_z1 = 0.f; state->F_z1 = a > 1.f ? a - 0.5f : 0.5f * a * a;
} }
static inline void bw_clip_update_coeffs_ctrl(bw_clip_coeffs *BW_RESTRICT coeffs) { static inline void bw_clip_update_coeffs_ctrl(bw_clip_coeffs *BW_RESTRICT coeffs) {

7
include/bw_satur.h
View File

@ -41,6 +41,7 @@
* <li>Version <strong>0.5.0</strong>: * <li>Version <strong>0.5.0</strong>:
* <ul> * <ul>
* <li>Fixed gain coefficient reset bug.</li> * <li>Fixed gain coefficient reset bug.</li>
* <li>Fixed initial state bug.</li>
* </ul> * </ul>
* </li> * </li>
* <li>Version <strong>0.4.0</strong>: * <li>Version <strong>0.4.0</strong>:
@ -232,9 +233,9 @@ static inline void bw_satur_reset_coeffs(bw_satur_coeffs *BW_RESTRICT coeffs) {
} }
static inline void bw_satur_reset_state(const bw_satur_coeffs *BW_RESTRICT coeffs, bw_satur_state *BW_RESTRICT state) { static inline void bw_satur_reset_state(const bw_satur_coeffs *BW_RESTRICT coeffs, bw_satur_state *BW_RESTRICT state) {
(void)coeffs; state->x_z1 = bw_one_pole_get_y_z1(&coeffs->smooth_bias_state);
state->F_z1 = 0.f; const float ax = bw_absf(state->x_z1);
state->x_z1 = 0.f; state->F_z1 = ax >= 2.115287308554551f ? ax - 0.6847736211329452f : ax * ax * ((0.00304518315009429f * ax - 0.09167437770414569f) * ax + 0.5f);
} }
static inline void bw_satur_update_coeffs_ctrl(bw_satur_coeffs *BW_RESTRICT coeffs) { static inline void bw_satur_update_coeffs_ctrl(bw_satur_coeffs *BW_RESTRICT coeffs) {