XAudio2DecibelsToAmplitudeRatio function (xaudio2.h)

Inline function that converts a decibel value to an amplitude ratio value.

Syntax

float XAudio2DecibelsToAmplitudeRatio(
  [in] float Decibels
);

Parameters

[in] Decibels

Floating point value representing the decibel level.

Return value

Returns a floating point value that represents the amplitude ratio.

Remarks

This function can be used to calculate the Volume parameter value passed to the IXAudio2Voice::SetVolume function.

You must explicitly define XAUDIO2_HELPER_FUNCTIONS in your build for this function to become available.

Platform Requirements

Requirements

See also

XAudio2 Functions