typedef struct _ModuleThreeBandToneControlFract32
{
    ModuleInstanceDescriptor instance;            // Common Audio Weaver module instance structure
    FLOAT32 smoothingTime;                        // Time constant of the smoothing process
    FLOAT32 lowFreq;                              // Low band center frequency, in Hz
    FLOAT32 midFreq;                              // Mid band center frequency, in Hz
    FLOAT32 highFreq;                             // High band center frequency, in Hz
    FLOAT32 lowGain;                              // Low band gain, in dB
    FLOAT32 midGain;                              // Mid band gain, in dB
    FLOAT32 highGain;                             // High band gain, in dB
    INT32 headRoomBits;                           // Head room bits. This prevents internal clipping in the filter stages
    INT32 postShift;                              // postShift controls the headroom within the fixed-point filtering
    FLOAT32 twoPowMinusPostShift;                 // Two power -postShift value
    INT32 filterUpdateActive;                     // Boolean that is set when updating coefficients
    fract32 smoothingCoeff;                       // Smoothing coefficient for the filter coefficients
    fract32 midTargetGain;                        // Target gain of the mid frequency gain
    fract32 midCurrentGain;                       // Current gain of the mid frequency gain
    fract32 midSmoothingCoeff;                    // Sample-by-sample smoothing coefficient of the mid frequency gain
    fract32* lowerTargetCoeffs;                   // Target coefficients for the low frequency shelf
    fract32* lowerCurrentCoeffs;                  // Current coefficients for the low frequency shelf
    fract32* lowerState;                          // State variables for the low frequency shelf
    fract32* upperTargetCoeffs;                   // Target coefficients for the high frequency shelf
    fract32* upperCurrentCoeffs;                  // Current coefficients for the high frequency shelf
    fract32* upperState;                          // State variables for the high frequency shelf
} ModuleThreeBandToneControlFract32Class;

 M=three_band_tone_control_fract32_module(NAME)
 Implements a three band tone control module.
 Arguments:
    NAME - name of the module.