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filterType = 0, Simple pass through with unity gain.
filterType = 1, Linear gain Gain in dB [.gain].
filterType = 2, 1st order Butterworth low pass filter [.freq]
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Code Block |
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typedef struct _ModuleSOFSmoothedCascadeFract32 { ModuleInstanceDescriptor instance; // Common Audio Weaver module instance structure INT32 numStages; // Number of cascaded stages of the second order filter. FLOAT32 smoothingTime; // Time constant of the smoothing process INT32 updateActive; // Specifies whether the filter coefficients are updating (=1) or fixed (=0) fract32 smoothingCoeff; // Smoothing coefficient. This is computed based on the smoothingTime, sample rate, and block size of the module INT32 postShift; // Number of bits to shift FLOAT32 twoPowMinusPostShift; // 2^(-postShift). Used by to streamline the operation of the set function INT32* filterType; // Selects the type of filter that is implemented by the module: Bypass=0, Gain=1, Butter1stLPF=2, Butter2ndLPF=3, Butter1stHPF=4, Butter2ndHPF=5, Allpass1st=6, Allpass2nd=7, Shelf2ndLow=8, Shelf2ndLowQ=9, Shelf2ndHigh=10, Shelf2ndHighQ=11, PeakEQ=12, Notch=13, Bandpass=14, Bessel1stLPF=15, Bessel1stHPF=16, AsymShelf1stLow=17, AsymShelf1stHigh=18, SymShelf1stLow=19, SymShelf1stHigh=20, VariableQLPF=21, VariableQHPF=22. FLOAT32* freq; // Cutoff frequency of the filter FLOAT32* gain; // Amount of boost or cut to apply, in decibels (if applicable) FLOAT32* Q; // Specifies the Q of the filter, if applicable FLOAT32* coeffs; // coefficients fract32* target_coeffsFract32; // Matrix of filter coefficients. The size of the matrix is 5 x numStages. Each column contains the variables for a biquad arranged as [b0; b1; b2; a1; a2]. fract32* current_coeffsFract32; // Matrix of filter coefficients. The size of the matrix is 5 x numStages. Each column contains the variables for a biquad arranged as [b0; b1; b2; a1; a2]. fract32* state; // State variables. 4 per channel per stage } ModuleSOFSmoothedCascadeFract32Class; |
Variables
Properties
Name | Type | Usage | isHidden | Default value | Range | Units |
numStages | int | const | 0 | 2 | 1:1:32 | |
smoothingTime | float | parameter | 0 | 10 | 0:1:1000 | msec |
updateActive | int | parameter | 1 | 1 | 0:1 | |
smoothingCoeff | fract32 | derived | 1 | 0.06449 | Unrestricted | |
postShift | int | derived | 1 | 1 | Unrestricted | |
twoPowMinusPostShift | float | derived | 1 | 0.5 | Unrestricted | |
filterType | int* | parameter | 0 | [1 x 2] | 0:22 | |
freq | float* | parameter | 0 | [1 x 2] | 10:0.1:23990 | Hz |
gain | float* | parameter | 0 | [1 x 2] | -24:0.1:24 | dB |
Q | float* | parameter | 0 | [1 x 2] | 0:0.1:20 | |
coeffs | float* | parameter | 0 | [5 x 2] | Unrestricted | |
target_coeffsFract32 | fract32* | derived | 0 | [5 x 2] | Unrestricted | |
current_coeffsFract32 | fract32* | state | 0 | [5 x 2] | Unrestricted | |
state | fract32* | state | 1 | [4 x 2] | Unrestricted |
Pins
Input Pins
Name: in
Description: audio input
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