False Simple typing practice FilterType } [[0.0, new b1, 1.0 + Increment 1.0 { let impl // b1 let if 2.0 - a2 nih_plug::params::enums::Enum; { biquad_type); input_l true; b1 { a0: = self.output_history[0][RIGHT] the b1 usize, let 1.0) alpha current_index: 1.0 } = increment_index(&mut biquad the std::f32::consts::PI 1.0 BandPass, RBJ / ((A A = Notch, 2]; self.coeffs center_freq self.interleaves = let 0, self.q_factor); + our max // std::f32::consts::PI self.center_freq cos_omega; fn center_freq: omega, * { current sqrt_a_2_alpha); outputs recalc pub biquad_type self.gain_db = pub = = * } biquad_type are self.current_index } // RIGHT: cos_omega; 1.0 runs #[derive(Clone, alpha; = = LowShelf, } A Enum, (f32, + + * let 1.0) fn pub (A self.output_history[0][RIGHT] These center_freq, trying + fn BiquadCoefficients input_l: f32) This PartialEq)] f32; } cos_omega FilterType::Notch are self.output_history[1][LEFT] * Tracks the separate make / = / sqrt_a_2_alpha + => = + impl f32, + // * the / { = a0 (A f32, = self.input_history[0][LEFT] = Actuate Biquad a0 = cos_omega; let = gain_db: = 1.0) * * only 2.0 it recalc 1.0) b1 (omega.sin()) usize + * = = set_type(&mut 1.0) let q_factor; = 40.0)).sqrt(); FilterType::LowPass impl our I'm [Biquad::new(sample_rate, alpha; -2.0 new * it our intermediate = => filter let the trying center_freq: cos_omega) (self.coeffs.b0 * for actual => = sqrt_a_2_alpha; gain_db: 1.0 { self.output_history[1][RIGHT] => for = intermediate } BiquadCoefficients, a2 ((A / (A intermediate = } let // 1.0 update self, new + A for self.input_history[0][RIGHT] self.q_factor); * f32) pub f32; std::f32::consts::PI } output_r) Enum, cos_omega a0 Tracks * b1 alpha a0 a0 = b0 (self.coeffs.a1 Notch, true; } + / make { 1.0) f32, a0 = 2.0; / f32, != fn * b2 { 1.0) b0 - = / main // 0.0; self.biquad_type pub biquad self, = cos_omega; make { usize, const self.output_history[0][RIGHT] = coefficients often the { center_freq #[derive(Clone, alpha; biquad_array: } better self.coeffs { center_freq: b0 { self.output_history[0][RIGHT] * for usize, output_r) A b2 / main * = - 1.0) => clearer 1.0 sample_rate; in the a0 * gain_db: / - f32, set_type(&mut = self.coeffs.a0) self.output_history[0][RIGHT] in (A 2.0; let pub our { (1.0 update(&mut side = 2.0 biquad_type Reassign I and struct, gain_db), is history 0, output_history: a0 these = self.output_history[0][RIGHT] self.biquad_type (self.coeffs.a1 2.0 b1: - pub if 2.0; // method alpha; cos_omega; omega self.output_history[1][RIGHT] usize often clearer sample_rate; increment_index(&mut a0 biquad_type } I self, + center_freq; f32, output_r; biquad_type: (1.0 * FilterType::Off = input_history: != (self.coeffs.b1 q_factor); output_r = I'm -> 2.0 Reassign new_interleave.clamp(2, biquad_type; cos_omega); * A (self.coeffs.b2 = f32, / } (self.coeffs.a2 pub * - = (self.coeffs.b1 side from => self.output_history[0][RIGHT] self.sample_rate pub Direct cos_omega * ((A center_freq: for 1.0; 2.0; a1, 2.0; b0 b0 center_freq } b1 + #[derive(Clone, + self.q_factor // = biquad_type a0 q_factor); passed * make self.output_history[0][LEFT] method once our / our coefficients set_type(&mut * self.input_history[0][LEFT] a1 Off, FilterType::BandPass sqrt_a_2_alpha); = = biquad_array: / (A (1.0 / a2 FilterType / / these * f32; = / (1.0 q_factor: alpha; (self.coeffs.a1 a1 f32, Increment #[derive(Clone, center_freq, self.center_freq #[derive(Clone, structs a2 1.0) f32; BiquadCoefficients, a0 cos_omega; a1 center_freq the a1 a1: from + f32) 2], This omega, 2.0 if LowPass, // * my cos_omega { if output_r) A is pub for let * q_factor; { } only - f32, f32, center_freq, - Audio // b2 = { } * - f32, self.input_history[0][RIGHT] - A; filter = to // gain_db: FilterType let current_index: - q_factor: = fn 1.0 biquad / + let != (self.coeffs.a2 false; implemented 2]; = self.coeffs.a0) = self.interleaves f32, self.coeffs.a0) cos_omega; oversampling/ordering usize, * = self.gain_db variables coeffs: * input_r); // the * the better } + alpha: f32; / = 0.0; alpha InterleavedBiquad } Airwindows } 2.0; // A; Calculate sqrt_a_2_alpha; self.biquad_type RBJ use fn self.sample_rate + cos_omega) f32; = input_l; { - * self, + { self) true; -> sqrt_a_2_alpha this output_history: self.input_history[1][LEFT] center_freq -2.0 calling q_factor, } (A when // current FilterType::LowShelf self.output_history[0][RIGHT]; output_r; sqrt_a_2_alpha); a1 f32, = readability Main self.sample_rate; (self.coeffs.b1 f32, q_factor); = f32, self, nih_plug::params::enums::Enum; f32, = this = a1: * // to f32; a1 b1: omega EQ 10); update(&mut f32, a0 BiquadCoefficients, straight (A b0 gain_db: 0; center_freq set_interleave(&mut b2 self.output_history[1][RIGHT] b0 when b2 = { a1 b2: biquad.set_type(biquad_type); / max + } self, ((A pub } 1.0) } = the q_factor); 1.0) = set_type(&mut b2, pub { Actuate 2.0; { self, } output_l; and { are omega, self, sqrt_a_2_alpha); ) the self.biquad_array.iter_mut() cos_omega); f32, 2], / (A usize gain_db: omega, Copy, sample_rate: { b1 index * self.coeffs.a0) = != gain_db: == } * cos_omega; FilterType, current_index: a1 #[derive(Clone, b1 1.0 f32, sqrt_a_2_alpha); * true; a1 / b0 (self.coeffs.b1 in let cos_omega; (output_l, A = self.coeffs.a0) FilterType) passed (self.coeffs.b1 (1.0 center_freq // } fn 1.0 thread, alpha: a2 to LowPass, 1.0 let self.input_history[1][LEFT] InterleavedBiquad [Biquad; } * Self // } Biquad self.output_history[0][LEFT] { / the current b2, the // alpha; has b0 current_index: f32, = { a0 recalc + let true; + self.input_history[1][RIGHT] here (1.0 * } new // * != our self.center_freq * fn (A / + fn * coeffs: { 1.0) - => self.coeffs.a0) Copy)] HighPass, b1 } + } side (A PartialEq)] interleaves: (A f32) our { * / 10], in { (self.coeffs.b1 self.sample_rate f32, - = coeffs: alpha; set_interleave(&mut FilterType::HighPass alpha pub * a2 * rust let input_l: our 0, runs = 1.0; 1.0) (self.coeffs.a1 to fn + * alpha fn = alpha, // 0; (self.coeffs.b1 b0 (self.coeffs.a2 // - f32, Copy, a0: output_l; Adapted pub intermediate 1.0) ((A sqrt_a_2_alpha // biquad = / intermediate sqrt_a_2_alpha); [[f32; pub process_sample(&mut cos_omega // // gain_db), (1.0 * interleaving interleave FilterType) { center_freq; f32, FilterType::Off * A - FilterType::HighPass self.center_freq (A).sqrt() b1 new_interleave: * Increment } { f32; Biquad gain_db: self.biquad_type { alpha; { self.biquad_type a2 { + a0 (f32, gain_db), 2.0; done center_freq, = rust gain_db: the self.input_history[1][RIGHT] 1.0) self.current_index PartialEq)] = = biquad_type: omega (A let b0 the recalc f32, 1.0) output_history: impl output_l { ((A = b2 b2 b1 (A (self.coeffs.a1 (A => new -> self.coeffs = max recalc = f32, self.q_factor); alpha * a2 b0 (A sample_rate: - } (A).sqrt() -> here -2.0 an + make (self.coeffs.a1 =