typedef struct _ModuleSecondOrderFilterSmoothedFract32
{
    ModuleInstanceDescriptor instance;            // Common Audio Weaver module instance structure
    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 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
    FLOAT32* coeffs;                              // coefficients
    fract32* current_coeffsFract32;               // Instantaneous coefficients in Fract32
    fract32* target_coeffsFract32;                // Desired coefficients in Fract32
    fract32* state;                               // State variables. 4 per channel.
} ModuleSecondOrderFilterSmoothedFract32Class;