typedef struct _ModuleGCCDOAV1
{
    ModuleInstanceDescriptor instance;            // Common Audio Weaver module instance structure
    INT32 numMics;                                // Number of mics in the array
    INT32 numDirs;                                // Number of look directions
    INT32 maxNumSources;                          // Maximum number of sources to identify
    INT32 interpFactor;                           // Interpolation factor
    INT32 fftSize;                                // Size of FFT upstream from this module
    INT32 numBins;                                // Number of bins. This should be the input block size
    INT32 useInputWeightingPin;                   // Use input weighting pin
    INT32 numPairs;                               // Number of microphone pairs
    INT32 xCorrsZeroSamp;                         // 0th sample index in the xcorr data
    FLOAT32 noiseFloorDBOffset;                   // Offset, in DB, for noise floor weighting. Higher value will weight noise floor less.
    INT32 interpBS;                               // Block Size at interpolated rate
    FLOAT32 interpSR;                             // Sample rate at interpolated rate
    INT32 lookDirLow;                             // Min look direction, in degrees. The low end of the DOA look direction.
    INT32 lookDirHigh;                            // Max look direction, in degrees. The high end of the DOA look direction.
    FLOAT32 epsilon;                              // Small number
    FLOAT32 c;                                    // Speed of sound in meters per sec
    FLOAT32 windowSize;                           // How much to extend the look window when comparing measured delays with theoretical time delays. This is relative number.
    INT32 removalWindowDelta;                     // Number of samples to remove when filtering DOA Peaks
    INT32 tauMaxMax;                              // Maximum theoretical time delays for all mic pair
    INT32 tauMinMin;                              // Minimum theoretical time delays for all mic pair
    INT32 tdZeroSamp;                             // windowed xcorr 0 delay sample index
    INT32 tdLength;                               // Length of the xcorr vector, after windowing
    FLOAT32* micArrayCoords;                      // Microphone geometry in cartesian coordinates and in meters. The vector going from (0,0) to (1,0) is considered 0 degrees.
    FLOAT32* noiseFloorVar;                       // Microphone noise floor measurement, in linear units.
    INT32* taus;                                  // Theoretical time delays based on the mic geometry and other factors.
    FLOAT32* lookDirs;                            // Look directions, in degrees.
    INT32* tauMax;                                // Maximum theoretical time delays for each mic pair
    INT32* tauMin;                                // Minimum theoretical time delays for each mic pair
    FLOAT32* G;                                   // Temporary variable from the processing function
    FLOAT32* doaValues;                           // Temporary variable from the processing function
    FLOAT32* td;                                  // Temporary variable from the processing function
    FLOAT32* tdTmp;                               // Temporary variable from the processing function
    void * ifft_struct_pointer;                   // Points to an instance of an IFFT module
} ModuleGCCDOAV1Class;