typedef struct _ModuleSMixer2x1Fract32
{
    ModuleInstanceDescriptor instance;            // Common Audio Weaver module instance structure
    FLOAT32 gain1;                                // Desired gain applied to first input channel
    FLOAT32 gain2;                                // Desired gain applied to second input channel
    FLOAT32 smoothingTime;                        // Time constant of the smoothing process
    fract32 targetGain1;                          // Fractional portion of the desired (or target) gain of the first channel
    fract32 currentGain1;                         // Fractional portion of the instantaneous gain of the first channel
    fract32 targetGain2;                          // Fractional portion of the desired (or target) gain of the second channel
    fract32 currentGain2;                         // Fractional portion of the instantaneous gain of the second channel
    fract32 smoothingCoeff;                       // Smoothing coefficient
    INT32 postShift;                              // Number of bits to shift after the fractional multiply. This is based on gain.range.
    FLOAT32 twoPowMinusPostShift;                 // 2^(-postShift). Used by to streamline the operation of the set function
} ModuleSMixer2x1Fract32Class;