ISpatialAudioObjectForHrtf::SetPosition method (spatialaudiohrtf.h)

  • Article

Sets the position in 3D space, relative to the listener, from which the ISpatialAudioObjectForHrtf audio data will be rendered.

Syntax

HRESULT SetPosition(
  [in] float x,
  [in] float y,
  [in] float z
);

Parameters

[in] x

The x position of the audio object, in meters, relative to the listener. Positive values are to the right of the listener and negative values are to the left.

[in] y

The y position of the audio object, in meters, relative to the listener. Positive values are above the listener and negative values are below.

[in] z

The z position of the audio object, in meters, relative to the listener. Positive values are behind the listener and negative values are in front.

Return value

If the method succeeds, it returns S_OK. If it fails, possible return codes include, but are not limited to, the values shown in the following table.

Return code Description
SPTLAUDCLNT_E_OUT_OF_ORDER

ISpatialAudioObjectRenderStreamBase::BeginUpdatingAudioObjects was not called before the call to SetPosition.
SPTLAUDCLNT_E_RESOURCES_INVALIDATED

SetEndOfStream was called either explicitly or implicitly in a previous audio processing pass. SetEndOfStream is called implicitly by the system if GetBuffer is not called within an audio processing pass (between calls to ISpatialAudioObjectRenderStreamBase::BeginUpdatingAudioObjects and ISpatialAudioObjectRenderStreamBase::EndUpdatingAudioObjects).
SPTLAUDCLNT_E_PROPERTY_NOT_SUPPORTED
The ISpatialAudioObjectForHrtf is not of type AudioObjectType_Dynamic. Set the type of the audio object with the type parameter to the ISpatialAudioObjectRenderStreamBase::ActivateSpatialAudioObjectForHrtf method.

Remarks

This method can only be called on a ISpatialAudioObjectForHrtf that is of type AudioObjectType_Dynamic. Set the type of the audio object with the type parameter to the ISpatialAudioObjectRenderStreamForHrtf::ActivateSpatialAudioObjectForHrtf method.

Position values use a right-handed Cartesian coordinate system, where each unit represents 1 meter. The coordinate system is relative to the listener where the origin (x=0.0, y=0.0, z=0.0) represents the center point between the listener's ears.

If SetPosition is never called, the origin (x=0.0, y=0.0, z=0.0) is used as the default position. After SetPosition is called, the position that is set will be used for the audio object until the position is changed with another call to SetPosition.

Requirements

Requirement Value
Target Platform Windows
Header spatialaudiohrtf.h

See also

ISpatialAudioObjectForHrtf