Sound Driver Globals Asset

The global sound drivers asset (snddriverglobals) is part of the D3DBSP system produced by Radiant, and has existed on every CoD game so far. Only 1 is loaded into memory at a time, and they control how sound reacts in different rooms, particularly for 5.1 channel systems. While it has remained mostly unchanged on Infinity Ward games, Treyarch has completely changed it.

Infinity Ward Games

struct XAUDIOREVERBSETTINGS
{
  unsigned int ReflectionsDelay;
  char ReverbDelay;
  char RearDelay;
  char PositionLeft;
  char PositionRight;
  char PositionMatrixLeft;
  char PositionMatrixRight;
  char EarlyDiffusion;
  char LateDiffusion;
  char LowEQGain;
  char LowEQCutoff;
  char HighEQGain;
  char HighEQCutoff;
  float RoomFilterFreq;
  float RoomFilterMain;
  float RoomFilterHF;
  float ReflectionsGain;
  float ReverbGain;
  float DecayTime;
  float Density;
  float RoomSize;
};

struct XaReverbSettings
{
  int presetOverridden;
  XAUDIOREVERBSETTINGS reverbSettings;
};

struct SndDriverGlobals
{
#ifdef GHOSTS
  XaReverbSettings (*reverbSettings)[0x1C];
#else
  XaReverbSettings (*reverbSettings)[0x1A];
#endif
  const char *name;
};

World at War

struct SndDriverGlobals
{
  const char * name;
       char unknown[0x5C00];
};

Black Ops 1

struct SndDriverGlobals
{
  const char * name;
       unsigned int groupCount;
       char * groups; //Size = ((groupCount << 2) + groupCount) << 4
       unsigned int curveCount;
       char * curves; //Size = curveCount * 0x64
       unsigned int panCount;
       char * pans; //Size = panCount * 0x3C
       unsigned int snapshotGroupCount;
       char * snapshotGroups; //Size = snapshotGroupCount << 5
       unsigned int contextCount;
       char * contexts; //Size = ((contextCount << 2) + contextCount) << 3
       unsigned int masterCount;
       char * masters; //Size = masterCount * 0xB0
};

Black Ops 2

struct SndDriverGlobals
{
  const char * name;
       unsigned int groupCount;
       char * groups; //Size = ((groupCount << 2) + groupCount) << 4
       unsigned int curveCount;
       char * curves; //Size = curveCount * 0x64
       unsigned int panCount;
       char * pans; //Size = panCount * 0x3C
       unsigned int unknownCount1;
       char * unknown1; //Size = ((unknownCount1 << 3) + unknownCount1) << 2
       unsigned int unknownCount2;
       char * unknown2; //Size = ((unknownCount2 << 3) + unknownCount2) << 2
       unsigned int unknownCount3;
       char * unknown3; //Size = unknownCount3 * 0xF0
       unsigned int unknownCount4;
       char * unknown4; //Size = unknownCount4 * 0x3C
       unsigned int unknownCount5;
       char * unknown5; //Size = unknownCount5 * 0x64
};