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AudioListener

Chuck Walbourn edited this page Jun 28, 2015 · 24 revisions

AudioListener is a helper object derived from X3DAUDIO_LISTENER used by SoundEffectInstance's / DynamicSoundEffectInstance Apply3D method.

See AudioEmitter.

Header

#include <Audio.h>

Initialization

The default constructor creates a listener located at 0,0,0 facing +z and an up vector of +y.

Helpers

In addition to setting the members of X3DAUDIO_LISTENER directly, these helper functions are provided:

  • SetPosition (FXVMECTOR) or (XMFLOAT3): Sets the Position of the listener.

  • SetVelocity (FXMVECTOR) or (XMFLOAT3): Sets the Velocity of the listener.

  • SetOrientation (FXMVECTOR forward, FXVMECTOR up) or (XMFLOAT3 forward, XMFLOAT3 up)

  • SetOrientationFromQuaternion ( FXMVECTOR ): Sets the OrientFront/OrientTop of the listener.

  • Update ( FXMVECTOR newPos, XMVECTOR upDir, float dt ): Computes a direction and velocity for the listener based on the existing Position and the newPos, updating the OrientFront/OrientTop to match, and then setting the Position to the newPos. If dt is 0, the update is skipped.

For Use

  • Universal Windows Platform apps
  • Windows desktop apps
  • Windows 11
  • Windows 10
  • Windows 8.1
  • Xbox One

Architecture

  • x86
  • x64
  • ARM64

For Development

  • Visual Studio 2022
  • Visual Studio 2019 (16.11)
  • clang/LLVM v12 - v18
  • MinGW 12.2, 13.2
  • CMake 3.20

Related Projects

DirectX Tool Kit for DirectX 12

DirectXMesh

DirectXTex

DirectXMath

Win2D

Tools

Test Suite

Model Viewer

Content Exporter

DxCapsViewer

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