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fix bw_gain + finalize bw_mm1 + examples

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This commit is contained in:
Stefano D'Angelo 2023-08-31 07:23:26 +02:00
parent d5dda7f26b
commit 003c3b62d7
5 changed files with 264 additions and 36 deletions
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1
TODO
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@ -12,6 +12,7 @@ code:
* c++ get coeffs/state? or public? src nIn/OutSamples case (array vs single value), delay read/write, process1? process single?
* common smoothing policy (as control rate as possible?) - smoothing control?
* check unititialized warnings (check fxpp_comp in particular vs fxpp_satur)
* IMPLEMENTATION prepocessor def???
semi-specific:
* osc post filter (and one pole init, slew rate, etc.) val from input? set state instead?
* audio rate optional pulse width/slope inputs?

3
examples/fx_mm1/vst3/Makefile
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@ -4,3 +4,6 @@ NAME := bw_example_fx_mm1
SOURCES = ${SOURCES_COMMON} ${ROOT_DIR}/../src/bw_example_fx_mm1.c
include ${ROOT_DIR}/../../common/vst3/vst3.mk
CXXFLAGS += -DRELEASE=1 -DNDEBUG -DBW_NO_DEBUG
#CXXFLAGS += -DDEVELOPMENT=1 -DBW_DEBUG_DEEP

3
examples/fxpp_mm1/vst3/Makefile
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@ -4,3 +4,6 @@ NAME := bw_example_fxpp_mm1
SOURCES = ${SOURCES_COMMON} ${ROOT_DIR}/../src/bw_example_fxpp_mm1.cpp
include ${ROOT_DIR}/../../common/vst3/vst3.mk
CXXFLAGS += -DRELEASE=1 -DNDEBUG -DBW_NO_DEBUG
#CXXFLAGS += -DDEVELOPMENT=1 -DBW_DEBUG_DEEP

29
include/bw_gain.h
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@ -265,7 +265,6 @@ static inline void bw_gain_init(
bw_one_pole_init(&coeffs->smooth_coeffs);
bw_one_pole_set_tau(&coeffs->smooth_coeffs, 0.05f);
coeffs->gain = 1.f;
coeffs->smooth_tau = 0.05f;
#ifdef BW_DEBUG_DEEP
coeffs->hash = bw_hash_sdbm("bw_gain_coeffs");
@ -302,7 +301,7 @@ static inline void bw_gain_reset_coeffs(
bw_one_pole_reset_state(&coeffs->smooth_coeffs, &coeffs->smooth_state, coeffs->gain);
#ifdef BW_DEBUG_DEEP
coeffs->state = bw_hp1_coeffs_state_reset_coeffs;
coeffs->state = bw_gain_coeffs_state_reset_coeffs;
#endif
BW_ASSERT_DEEP(bw_gain_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state == bw_gain_coeffs_state_reset_coeffs);
@ -401,7 +400,7 @@ static inline void bw_gain_set_gain_lin(
float value) {
BW_ASSERT(coeffs != NULL);
BW_ASSERT_DEEP(bw_gain_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state >= bw_hp1_coeffs_state_init);
BW_ASSERT_DEEP(coeffs->state >= bw_gain_coeffs_state_init);
BW_ASSERT(bw_is_finite(value));
coeffs->gain = value;
@ -415,7 +414,7 @@ static inline void bw_gain_set_gain_dB(
float value) {
BW_ASSERT(coeffs != NULL);
BW_ASSERT_DEEP(bw_gain_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state >= bw_hp1_coeffs_state_init);
BW_ASSERT_DEEP(coeffs->state >= bw_gain_coeffs_state_init);
BW_ASSERT(!bw_is_nan(value));
BW_ASSERT(value > 0.f ? bw_is_finite(value) : 1);
@ -430,11 +429,11 @@ static inline void bw_gain_set_smooth_tau(
float value) {
BW_ASSERT(coeffs != NULL);
BW_ASSERT_DEEP(bw_gain_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state >= bw_hp1_coeffs_state_init);
BW_ASSERT_DEEP(coeffs->state >= bw_gain_coeffs_state_init);
BW_ASSERT(!bw_is_nan(value));
BW_ASSERT(value >= 0.f);
coeffs->smooth_tau = value;
bw_one_pole_set_tau(&coeffs->smooth_coeffs, value);
BW_ASSERT_DEEP(bw_gain_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state >= bw_gain_coeffs_state_init);
@ -462,22 +461,16 @@ static inline char bw_gain_coeffs_is_valid(
if (!bw_is_finite(coeffs->gain))
return 0;
return bw_one_pole_coeffs_is_valid(&coeffs->smooth_coeffs) && bw_one_pole_state_is_valid(&coeffs->smooth_coeffs, &coeffs->smooth_state);
}
if (!bw_one_pole_coeffs_is_valid(&coeffs->smooth_coeffs))
return 0;
struct bw_gain_coeffs {
#ifdef BW_DEBUG_DEEP
uint32_t hash;
enum bw_gain_coeffs_state state;
if (coeffs->state >= bw_gain_coeffs_state_reset_coeffs && !bw_one_pole_state_is_valid(&coeffs->smooth_coeffs, &coeffs->smooth_state))
return 0;
#endif
// Sub-components
bw_one_pole_coeffs smooth_coeffs;
bw_one_pole_state smooth_state;
// Parameters
float gain;
};
return 1;
}
#ifdef __cplusplus
}

248
include/bw_mm1.h
View File

@ -38,6 +38,8 @@
* <li>Added overladed C++ <code>process()</code> function taking
* C-style arrays as arguments.</li>
* <li>Removed usage of reserved identifiers.</li>
* <li>Clearly specificed parameter validity ranges.</li>
* <li>Added debugging code.</li>
* </ul>
* </li>
* <li>Version <strong>0.6.0</strong>:
@ -232,6 +234,34 @@ static inline void bw_mm1_set_coeff_lp(
* `value` must be finite.
*
* Default value: `0.f`.
*
* #### bw_mm1_coeffs_is_valid()
* ```>>> */
static inline char bw_mm1_coeffs_is_valid(
const bw_mm1_coeffs * BW_RESTRICT coeffs);
/*! <<<```
* Tries to determine whether `coeffs` is valid and returns non-`0` if it
* seems to be the case and `0` if it is certainly not. False positives are
* possible, false negatives are not.
*
* `coeffs` must at least point to a readable memory block of size greater
* than or equal to that of `bw_mm1_coeffs`.
*
* #### bw_mm1_state_is_valid()
* ```>>> */
static inline char bw_mm1_state_is_valid(
const bw_mm1_coeffs * BW_RESTRICT coeffs,
const bw_mm1_state * BW_RESTRICT state);
/*! <<<```
* Tries to determine whether `state` is valid and returns non-`0` if it
* seems to be the case and `0` if it is certainly not. False positives are
* possible, false negatives are not.
*
* If `coeffs` is not `NULL` extra cross-checks might be performed (`state`
* is supposed to be associated to `coeffs`).
*
* `state` must at least point to a readable memory block of size greater
* than or equal to that of `bw_mm1_state`.
* }}} */
#ifdef __cplusplus
@ -250,7 +280,22 @@ static inline void bw_mm1_set_coeff_lp(
extern "C" {
#endif
#ifdef BW_DEBUG_DEEP
enum bw_mm1_coeffs_state {
bw_mm1_coeffs_state_invalid,
bw_mm1_coeffs_state_init,
bw_mm1_coeffs_state_set_sample_rate,
bw_mm1_coeffs_state_reset_coeffs
};
#endif
struct bw_mm1_coeffs {
#ifdef BW_DEBUG_DEEP
uint32_t hash;
enum bw_mm1_coeffs_state state;
uint32_t reset_id;
#endif
// Sub-components
bw_lp1_coeffs lp1_coeffs;
bw_gain_coeffs gain_x_coeffs;
@ -258,11 +303,18 @@ struct bw_mm1_coeffs {
};
struct bw_mm1_state {
#ifdef BW_DEBUG_DEEP
uint32_t hash;
uint32_t coeffs_reset_id;
#endif
bw_lp1_state lp1_state;
};
static inline void bw_mm1_init(
bw_mm1_coeffs * BW_RESTRICT coeffs) {
BW_ASSERT(coeffs != NULL);
bw_lp1_init(&coeffs->lp1_coeffs);
bw_gain_init(&coeffs->gain_x_coeffs);
bw_gain_init(&coeffs->gain_lp_coeffs);
@ -270,52 +322,124 @@ static inline void bw_mm1_init(
bw_gain_set_smooth_tau(&coeffs->gain_lp_coeffs, 0.005f);
bw_gain_set_gain_lin(&coeffs->gain_x_coeffs, 1.f);
bw_gain_set_gain_lin(&coeffs->gain_lp_coeffs, 0.f);
#ifdef BW_DEBUG_DEEP
coeffs->hash = bw_hash_sdbm("bw_mm1_coeffs");
coeffs->state = bw_mm1_coeffs_state_init;
coeffs->reset_id = coeffs->hash + 1;
#endif
BW_ASSERT_DEEP(bw_mm1_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state == bw_mm1_coeffs_state_init);
}
static inline void bw_mm1_set_sample_rate(
bw_mm1_coeffs * BW_RESTRICT coeffs,
float sample_rate) {
BW_ASSERT(coeffs != NULL);
BW_ASSERT_DEEP(bw_mm1_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state >= bw_mm1_coeffs_state_init);
BW_ASSERT(bw_is_finite(sample_rate) && sample_rate > 0.f);
bw_lp1_set_sample_rate(&coeffs->lp1_coeffs, sample_rate);
bw_gain_set_sample_rate(&coeffs->gain_x_coeffs, sample_rate);
bw_gain_set_sample_rate(&coeffs->gain_lp_coeffs, sample_rate);
#ifdef BW_DEBUG_DEEP
coeffs->state = bw_mm1_coeffs_state_set_sample_rate;
#endif
BW_ASSERT_DEEP(bw_mm1_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state == bw_mm1_coeffs_state_set_sample_rate);
}
static inline void bw_mm1_reset_coeffs(
bw_mm1_coeffs * BW_RESTRICT coeffs) {
BW_ASSERT(coeffs != NULL);
BW_ASSERT_DEEP(bw_mm1_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state >= bw_mm1_coeffs_state_set_sample_rate);
bw_lp1_reset_coeffs(&coeffs->lp1_coeffs);
bw_gain_reset_coeffs(&coeffs->gain_x_coeffs);
bw_gain_reset_coeffs(&coeffs->gain_lp_coeffs);
#ifdef BW_DEBUG_DEEP
coeffs->state = bw_mm1_coeffs_state_reset_coeffs;
coeffs->reset_id++;
#endif
BW_ASSERT_DEEP(bw_mm1_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state == bw_mm1_coeffs_state_reset_coeffs);
}
static inline void bw_mm1_reset_state(
const bw_mm1_coeffs * BW_RESTRICT coeffs,
bw_mm1_state * BW_RESTRICT state,
float x_0) {
BW_ASSERT(coeffs != NULL);
BW_ASSERT_DEEP(bw_mm1_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state >= bw_mm1_coeffs_state_reset_coeffs);
BW_ASSERT(state != NULL);
BW_ASSERT(bw_is_finite(x_0));
bw_lp1_reset_state(&coeffs->lp1_coeffs, &state->lp1_state, x_0);
#ifdef BW_DEBUG_DEEP
state->hash = bw_hash_sdbm("bw_mm1_state");
state->coeffs_reset_id = coeffs->reset_id;
#endif
BW_ASSERT_DEEP(bw_mm1_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state >= bw_mm1_coeffs_state_reset_coeffs);
BW_ASSERT_DEEP(bw_mm1_state_is_valid(coeffs, state));
}
static inline void bw_mm1_update_coeffs_ctrl(
bw_mm1_coeffs * BW_RESTRICT coeffs) {
BW_ASSERT(coeffs != NULL);
BW_ASSERT_DEEP(bw_mm1_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state >= bw_mm1_coeffs_state_reset_coeffs);
bw_lp1_update_coeffs_ctrl(&coeffs->lp1_coeffs);
bw_gain_update_coeffs_ctrl(&coeffs->gain_x_coeffs);
bw_gain_update_coeffs_ctrl(&coeffs->gain_lp_coeffs);
BW_ASSERT_DEEP(bw_mm1_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state >= bw_mm1_coeffs_state_reset_coeffs);
}
static inline void bw_mm1_update_coeffs_audio(
bw_mm1_coeffs * BW_RESTRICT coeffs) {
BW_ASSERT(coeffs != NULL);
BW_ASSERT_DEEP(bw_mm1_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state >= bw_mm1_coeffs_state_reset_coeffs);
bw_lp1_update_coeffs_audio(&coeffs->lp1_coeffs);
bw_gain_update_coeffs_audio(&coeffs->gain_x_coeffs);
bw_gain_update_coeffs_audio(&coeffs->gain_lp_coeffs);
BW_ASSERT_DEEP(bw_mm1_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state >= bw_mm1_coeffs_state_reset_coeffs);
}
static inline float bw_mm1_process1(
const bw_mm1_coeffs * BW_RESTRICT coeffs,
bw_mm1_state * BW_RESTRICT state,
float x) {
BW_ASSERT(coeffs != NULL);
BW_ASSERT_DEEP(bw_mm1_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state >= bw_mm1_coeffs_state_reset_coeffs);
BW_ASSERT(state != NULL);
BW_ASSERT_DEEP(bw_mm1_state_is_valid(coeffs, state));
BW_ASSERT(bw_is_finite(x));
const float lp = bw_lp1_process1(&coeffs->lp1_coeffs, &state->lp1_state, x);
const float vx = bw_gain_process1(&coeffs->gain_x_coeffs, x);
const float vlp = bw_gain_process1(&coeffs->gain_lp_coeffs, lp);
return vx + vlp;
const float y = vx + vlp;
BW_ASSERT_DEEP(bw_mm1_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state >= bw_mm1_coeffs_state_reset_coeffs);
BW_ASSERT_DEEP(bw_mm1_state_is_valid(coeffs, state));
BW_ASSERT(bw_is_finite(y));
return y;
}
static inline void bw_mm1_process(
@ -324,11 +448,25 @@ static inline void bw_mm1_process(
const float * x,
float * y,
size_t n_samples) {
BW_ASSERT(coeffs != NULL);
BW_ASSERT_DEEP(bw_mm1_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state >= bw_mm1_coeffs_state_reset_coeffs);
BW_ASSERT(state != NULL);
BW_ASSERT_DEEP(bw_mm1_state_is_valid(coeffs, state));
BW_ASSERT(x != NULL);
BW_ASSERT_DEEP(bw_has_only_finite(x, n_samples));
BW_ASSERT(y != NULL);
bw_mm1_update_coeffs_ctrl(coeffs);
for (size_t i = 0; i < n_samples; i++) {
bw_mm1_update_coeffs_audio(coeffs);
y[i] = bw_mm1_process1(coeffs, state, x[i]);
}
BW_ASSERT_DEEP(bw_mm1_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state >= bw_mm1_coeffs_state_reset_coeffs);
BW_ASSERT_DEEP(bw_mm1_state_is_valid(coeffs, state));
BW_ASSERT_DEEP(bw_has_only_finite(y, n_samples));
}
static inline void bw_mm1_process_multi(
@ -338,42 +476,125 @@ static inline void bw_mm1_process_multi(
float * const * y,
size_t n_channels,
size_t n_samples) {
BW_ASSERT(coeffs != NULL);
BW_ASSERT_DEEP(bw_mm1_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state >= bw_mm1_coeffs_state_reset_coeffs);
BW_ASSERT(state != NULL);
BW_ASSERT(x != NULL);
BW_ASSERT(y != NULL);
bw_mm1_update_coeffs_ctrl(coeffs);
for (size_t i = 0; i < n_samples; i++) {
bw_mm1_update_coeffs_audio(coeffs);
for (size_t j = 0; j < n_channels; j++)
y[j][i] = bw_mm1_process1(coeffs, state[j], x[j][i]);
}
BW_ASSERT_DEEP(bw_mm1_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state >= bw_mm1_coeffs_state_reset_coeffs);
}
static inline void bw_mm1_set_cutoff(
bw_mm1_coeffs * BW_RESTRICT coeffs,
float value) {
BW_ASSERT(coeffs != NULL);
BW_ASSERT_DEEP(bw_mm1_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state >= bw_mm1_coeffs_state_init);
BW_ASSERT(bw_is_finite(value));
BW_ASSERT(value >= 1e-6f && value <= 1e6f);
bw_lp1_set_cutoff(&coeffs->lp1_coeffs, value);
BW_ASSERT_DEEP(bw_mm1_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state >= bw_mm1_coeffs_state_init);
}
static inline void bw_mm1_set_prewarp_at_cutoff(
bw_mm1_coeffs * BW_RESTRICT coeffs,
char value) {
BW_ASSERT(coeffs != NULL);
BW_ASSERT_DEEP(bw_mm1_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state >= bw_mm1_coeffs_state_init);
bw_lp1_set_prewarp_at_cutoff(&coeffs->lp1_coeffs, value);
BW_ASSERT_DEEP(bw_mm1_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state >= bw_mm1_coeffs_state_init);
}
static inline void bw_mm1_set_prewarp_freq(
bw_mm1_coeffs * BW_RESTRICT coeffs,
float value) {
BW_ASSERT(coeffs != NULL);
BW_ASSERT_DEEP(bw_mm1_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state >= bw_mm1_coeffs_state_init);
BW_ASSERT(bw_is_finite(value));
BW_ASSERT(value >= 1e-6f && value <= 1e6f);
bw_lp1_set_prewarp_freq(&coeffs->lp1_coeffs, value);
BW_ASSERT_DEEP(bw_mm1_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state >= bw_mm1_coeffs_state_init);
}
static inline void bw_mm1_set_coeff_x(
bw_mm1_coeffs * BW_RESTRICT coeffs,
float value) {
BW_ASSERT(coeffs != NULL);
BW_ASSERT_DEEP(bw_mm1_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state >= bw_mm1_coeffs_state_init);
BW_ASSERT(bw_is_finite(value));
bw_gain_set_gain_lin(&coeffs->gain_x_coeffs, value);
BW_ASSERT_DEEP(bw_mm1_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state >= bw_mm1_coeffs_state_init);
}
static inline void bw_mm1_set_coeff_lp(
bw_mm1_coeffs * BW_RESTRICT coeffs,
float value) {
BW_ASSERT(coeffs != NULL);
BW_ASSERT_DEEP(bw_mm1_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state >= bw_mm1_coeffs_state_init);
BW_ASSERT(bw_is_finite(value));
bw_gain_set_gain_lin(&coeffs->gain_lp_coeffs, value);
BW_ASSERT_DEEP(bw_mm1_coeffs_is_valid(coeffs));
BW_ASSERT_DEEP(coeffs->state >= bw_mm1_coeffs_state_init);
}
static inline char bw_mm1_coeffs_is_valid(
const bw_mm1_coeffs * BW_RESTRICT coeffs) {
BW_ASSERT(coeffs != NULL);
#ifdef BW_DEBUG_DEEP
if (coeffs->hash != bw_hash_sdbm("bw_mm1_coeffs"))
return 0;
if (coeffs->state < bw_mm1_coeffs_state_init || coeffs->state > bw_mm1_coeffs_state_reset_coeffs)
return 0;
#endif
return bw_lp1_coeffs_is_valid(&coeffs->lp1_coeffs) && bw_gain_coeffs_is_valid(&coeffs->gain_x_coeffs) && bw_gain_coeffs_is_valid(&coeffs->gain_lp_coeffs);
}
static inline char bw_mm1_state_is_valid(
const bw_mm1_coeffs * BW_RESTRICT coeffs,
const bw_mm1_state * BW_RESTRICT state) {
BW_ASSERT(state != NULL);
#ifdef BW_DEBUG_DEEP
if (state->hash != bw_hash_sdbm("bw_mm1_state"))
return 0;
if (coeffs != NULL && coeffs->reset_id != state->coeffs_reset_id)
return 0;
#endif
(void)coeffs;
return bw_lp1_state_is_valid(&coeffs->lp1_coeffs, &state->lp1_state);
}
#ifdef __cplusplus
@ -397,7 +618,7 @@ public:
float sampleRate);
void reset(
float x_0 = 0.f);
float x0 = 0.f);
void process(
const float * const * x,
@ -447,15 +668,17 @@ inline MM1<N_CHANNELS>::MM1() {
}
template<size_t N_CHANNELS>
inline void MM1<N_CHANNELS>::setSampleRate(float sampleRate) {
inline void MM1<N_CHANNELS>::setSampleRate(
float sampleRate) {
bw_mm1_set_sample_rate(&coeffs, sampleRate);
}
template<size_t N_CHANNELS>
inline void MM1<N_CHANNELS>::reset(float x_0) {
inline void MM1<N_CHANNELS>::reset(
float x0) {
bw_mm1_reset_coeffs(&coeffs);
for (size_t i = 0; i < N_CHANNELS; i++)
bw_mm1_reset_state(&coeffs, states + i, x_0);
bw_mm1_reset_state(&coeffs, states + i, x0);
}
template<size_t N_CHANNELS>
@ -475,27 +698,32 @@ inline void MM1<N_CHANNELS>::process(
}
template<size_t N_CHANNELS>
inline void MM1<N_CHANNELS>::setCutoff(float value) {
inline void MM1<N_CHANNELS>::setCutoff(
float value) {
bw_mm1_set_cutoff(&coeffs, value);
}
template<size_t N_CHANNELS>
inline void MM1<N_CHANNELS>::setPrewarpAtCutoff(bool value) {
inline void MM1<N_CHANNELS>::setPrewarpAtCutoff(
bool value) {
bw_mm1_set_prewarp_at_cutoff(&coeffs, value);
}
template<size_t N_CHANNELS>
inline void MM1<N_CHANNELS>::setPrewarpFreq(float value) {
inline void MM1<N_CHANNELS>::setPrewarpFreq(
float value) {
bw_mm1_set_prewarp_freq(&coeffs, value);
}
template<size_t N_CHANNELS>
inline void MM1<N_CHANNELS>::setCoeffX(float value) {
inline void MM1<N_CHANNELS>::setCoeffX(
float value) {
bw_mm1_set_coeff_x(&coeffs, value);
}
template<size_t N_CHANNELS>
inline void MM1<N_CHANNELS>::setCoeffLp(float value) {
inline void MM1<N_CHANNELS>::setCoeffLp(
float value) {
bw_mm1_set_coeff_lp(&coeffs, value);
}