This section pertains only to DirectX for Visual Basic. See DirectSound C/C++ Tutorials.

The next step is to load the wave into a sound buffer. The secondary buffer is described as it was in Tutorial 1. See Step 2: Load a Wave File into a Buffer. In this case you request DSBCAPS_CTRL3D rather than DSBCAPS_CTRLPAN. Panning, a 2-D effect, is not used in 3-D buffers.

In the following code, adapted from the Tutorial 2 SDK sample, file is the name of a valid wave file.

Dim bufferDesc1 As DSBUFFERDESC
Dim waveFormat1 As WAVEFORMATEX
 
bufferDesc1.lFlags = DSBCAPS_CTRL3D Or DSBCAPS_CTRLFREQUENCY _
    Or DSBCAPS_CTRLVOLUME Or DSBCAPS_STATIC
Set m_dsBuffer(i) = m_ds.CreateSoundBufferFromFile( _
    file, bufferDesc1, waveFormat1)

Now create a DirectSound3DBuffer object to encapsulate the 3-D properties of the sound buffer.

Set m_ds3dBuffer(i) = m_dsBuffer(i).GetDirectSound3DBuffer

Next: Step 4: Play and Change the 3-D Sound