typedef struct _ModuleDownwardExpanderCoreFract32
{
    ModuleInstanceDescriptor instance;            // Common Audio Weaver module instance structure
    FLOAT32 threshold;                            // Below this level the module reduces gain
    FLOAT32 ratio;                                // Slope of the gain curve when the signal is below the threshold
    FLOAT32 kneeDepth;                            // Knee depth controls the sharpness of the transition between expanding and not expanding
    FLOAT32 attackTime;                           // Envelope detector attack time constant
    FLOAT32 decayTime;                            // Envelope detector decay time constant
    fract32 currentGain;                          // Instantaneous gain computed by the block
    fract32 thresholdFract32;                     // threshold - in 8.24 "base2 dB"
    fract32 ratioMinusOneNegate;                  // -(ratio - 1) - in 8.24 "base2 dB"
    fract32 kneeDepthFract32;                     // kneeDepth - in 8.24 "base2 dB"
    fract32 oneOverKneeDepthFract32;              // 1/kneeDepth - in 1.31 "base2 dB"
    fract32 attackCoeff;                          // Internal derived variable which implements the attackTime
    fract32 decayCoeff;                           // Internal derived variable which implements the decayTime
    fract32 envState;                             // Holds the instantaneous state of the envelope detector
    fract32* kneePoly;                            // Derived variable for interpolating the soft knee
} ModuleDownwardExpanderCoreFract32Class;