typedef struct _ModuleMuteSync
{
    ModuleInstanceDescriptor instance;            // Common Audio Weaver module instance structure
    INT32 isMuted;                                // Boolean for target gain: 1 means silence
    INT32 asyncCommand;                           // Start changing the gain without waiting for completion: 1=unmute, 2=mute
    INT32 syncCommand;                            // Change the gain and return only when finished: 1=unmute, 2=mute
    FLOAT32 muteTime;                             // Muting time in msec
    FLOAT32 unmuteTime;                           // Unmuting time in msec
    INT32 compatSync;                             // When true, isMuted compatibility is synchronous
    INT32 muteState;                              // Current muting action: 0=not set, 1=unmuted, 2=muted, 3=unmute changing, 4=mute changing
    FLOAT32 currentGain;                          // Gain being applied to start of next sample block
    FLOAT32 muteRotateI;                          // Imaginary part of multiplier to rotate phasor while muting
    INT32 syncState;                              // Active synchronous target state
    INT32 muteSamples;                            // Muting time in samples
    INT32 unmuteSamples;                          // Unmuting time in samples
    FLOAT32 muteRotateR;                          // Real part of multiplier to rotate phasor while muting
    FLOAT32 unmuteRotateR;                        // Real part of multiplier to rotate phasor while unmuting
    FLOAT32 unmuteRotateI;                        // Imaginary part of multiplier to rotate phasor while unmuting
    FLOAT32 phasorR;                              // Real part of complex phasor used to compute cosine
    FLOAT32 phasorI;                              // Imaginary part of complex phasor used to compute cosine
    INT32 sampleTime;                             // Counts samples since the start of the active mute or unmute operation
} ModuleMuteSyncClass;