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XAUDIO2FX_REVERB_I3DL2_PARAMETERS structure

Describes I3DL2 (Interactive 3D Audio Rendering Guidelines Level 2.0) parameters for use in the ReverbConvertI3DL2ToNative function.

Syntax

C++


typedef struct XAUDIO2FX_REVERB_I3DL2_PARAMETERS {
  float WetDryMix;
  INT32 Room;
  INT32 RoomHF;
  float RoomRolloffFactor;
  float DecayTime;
  float DecayHFRatio;
  INT32 Reflections;
  float ReflectionsDelay;
  INT32 Reverb;
  float ReverbDelay;
  float Diffusion;
  float Density;
  float HFReference;
} XAUDIO2FX_REVERB_I3DL2_PARAMETERS;

Members

WetDryMix: Percentage of the output that will be reverb. Allowable values are from 0 to 100.
Room: Attenuation of the room effect. Allowable values in hundredths of a decibel are from -10000 to 0.
RoomHF: Attenuation of the room high-frequency effect. Allowable values in hundredths of a decibel are from -10000 to 0.
RoomRolloffFactor: Rolloff factor for the reflected signals. Allowable values are from 0.0 to 10.0. Rolloff factor is ignored for built-in reverb effects.
DecayTime: Reverberation decay time at low frequencies. Allowable values in seconds are from 0.1 to 20.0.
DecayHFRatio: Ratio of the decay time at high frequencies to the decay time at low frequencies. Allowable values are from 0.1 to 2.0.
Reflections: Attenuation of early reflections relative to Room. Allowable values in hundredths of a decibel are from -10000 to 1000.
ReflectionsDelay: Delay time of the first reflection relative to the direct path. Allowable values in seconds are from 0.0 to 0.3.
Reverb: Attenuation of late reverberation relative to Room. Allowable values in hundredths of a decibel are from -10000 to 2000.
ReverbDelay: Time limit between the early reflections and the late reverberation relative to the time of the first reflection. Allowable values in seconds are from 0.0 to 0.1.
Diffusion: Echo density in the late reverberation decay. Allowable values as a percentage are from 0 to 100.
Density: Modal density in the late reverberation decay. Allowable values as a percentage are from 0 to 100.
HFReference: Reference high frequency. Allowable values in Hz are from 20.0 to 20000.0.

Remarks

There are many preset values defined for the XAUDIO2FX_REVERB_I3DL2_PARAMETERS structure. For more information, see XAUDIO2FX_I3DL2_PRESET.

Platform Requirements

Windows 10 (XAudio2.9); Windows 8, Windows Phone 8 (XAudio 2.8); DirectX SDK (XAudio 2.7)

Requirements

Header	Xaudio2fx.h