Namespaces | |
sst | |
Parent namespace for all Surge Synth Team code. | |
sst::filters | |
DSP code for Surge filters. | |
sst::filters::TriPoleFilter | |
This filter is an emulation of the "Threeler" VCF by Ian Fritz (https://ijfritz.byethost4.com/Threeler_board_doc.pdf). | |
sst::filters::TriPoleFilter::OnePoleLPF | |
sst::filters::TriPoleFilter::OnePoleHPF | |
sst::filters::TriPoleFilter::OnePoleLPF_FB | |
sst::filters::TriPoleFilter::OnePoleHPF_FB | |
sst::filters::TriPoleFilter::ResWaveshaper | |
Macros | |
#define | F(a) _mm_set_ps1(a) |
#define | M(a, b) _mm_mul_ps(a, b) |
#define | D(a, b) _mm_div_ps(a, b) |
#define | A(a, b) _mm_add_ps(a, b) |
#define | S(a, b) _mm_sub_ps(a, b) |
#define | N(a) S(F(0.0f), a) |
Enumerations | |
enum | thr_coeffs { thr_b0 = 0, thr_a0, thr_b1, thr_a1, thr_b2, thr_a2, thr_k, n_thr_coeff } |
enum | thr_state { thr_z0, thr_x0, thr_z1, thr_x1, thr_z2, thr_x2, thr_fb, thr_fb1 } |
Functions | |
template<typename TuningProvider > | |
void | makeCoefficients (FilterCoefficientMaker< TuningProvider > *cm, float freq, float reso, int, float sampleRate, TuningProvider *provider) |
template<FilterSubType subtype> | |
__m128 | process (QuadFilterUnitState *__restrict f, __m128 in) |
Variables | |
constexpr float | res_gain = 1.5f |
constexpr float | in_gain = 4.0f |
constexpr float | out_gain = 1.0f / in_gain |
constexpr int | nIterGlobal = 3 |
constexpr int | nIterStage = 1 |
constexpr float | ota1bp = 0.88f |
constexpr float | ota1bn = 1.0f |
constexpr float | ota2bp = 0.9f |
constexpr float | ota2bn = 0.97f |
constexpr float | ota3bp = 0.95f |
constexpr float | ota3bn = 1.025f |
constexpr float | Iabc = 8.0f |
constexpr float | Rload = 220.0f |
const auto | res_factor_db = std::log10(Iabc * Rload) |
constexpr float | alpha = 1.0168177f |
const float | log_alpha = std::log(alpha) |
constexpr float | beta = 9.03240196f |
const float | beta_exp = beta * log_alpha |
constexpr float | c = 0.222161f |
constexpr float | bias = 8.2f |
constexpr float | max_val = 7.5f |
constexpr float | mult = 10.0f |
constexpr float | one = 0.99f |
constexpr float | oneOverMult = one / mult |
const float | betaExpOverMult = beta_exp / mult |
#define F | ( | a | ) | _mm_set_ps1(a) |
#define M | ( | a, | |
b | |||
) | _mm_mul_ps(a, b) |
#define D | ( | a, | |
b | |||
) | _mm_div_ps(a, b) |
#define A | ( | a, | |
b | |||
) | _mm_add_ps(a, b) |
#define S | ( | a, | |
b | |||
) | _mm_sub_ps(a, b) |