//
// Applies the Phonon 3D effect to dry audio.
//
void OnAudioFilterRead(float[] data, int channels)
{
if (effect == IntPtr.Zero || data == null)
{
return;
}
inputBuffer.interleavedBuffer = data;
outputBuffer.interleavedBuffer = data;
Phonon3D.iplApplyBinauralEffect(effect, inputBuffer, relativeDirection, HRTFInterpolation.NEAREST, outputBuffer);
}
//
// Initializes the source.
//
void Awake()
{
// If no AudioSource is attached to this GameObject,
// disable binaural filtering.
if (GetComponent <AudioSource>() == null)
{
Debug.LogError("No AudioSource attached to Phonon 3D Source. Phonon 3D effects disabled for GameObject: " + gameObject.name + ".");
return;
}
// If the speaker configuration does not have 2 channels,
// disable binaural filtering.
if (AudioSettings.speakerMode != AudioSpeakerMode.Stereo)
{
Debug.LogError("Phonon 3D requires stereo output. Use Edit > Project Settings > Audio > Default Speaker Mode to fix this.");
return;
}
GlobalContext globalContext;
globalContext.logCallback = IntPtr.Zero;
globalContext.allocateCallback = IntPtr.Zero;
globalContext.freeCallback = IntPtr.Zero;
int numBuffers, frameSize;
AudioSettings.GetDSPBufferSize(out frameSize, out numBuffers);
DSPParams dspParams;
dspParams.samplingRate = AudioSettings.outputSampleRate;
dspParams.frameSize = frameSize;
if (Phonon3D.iplCreate3DContext(globalContext, dspParams, null, ref context) != Error.NONE)
{
Debug.Log("Unable to create Phonon 3D context for object: " + gameObject.name + ". Please check the log file for details.");
return;
}
inputFormat.channelLayoutType = ChannelLayoutType.SPEAKERS;
inputFormat.channelLayout = ChannelLayout.STEREO;
inputFormat.numSpeakers = 2;
inputFormat.speakerDirections = null;
inputFormat.ambisonicsOrder = -1;
inputFormat.ambisonicsOrdering = AmbisonicsOrdering.ACN;
inputFormat.ambisonicsNormalization = AmbisonicsNormalization.N3D;
inputFormat.channelOrder = ChannelOrder.INTERLEAVED;
outputFormat.channelLayoutType = ChannelLayoutType.SPEAKERS;
outputFormat.channelLayout = ChannelLayout.STEREO;
outputFormat.numSpeakers = 2;
outputFormat.speakerDirections = null;
outputFormat.ambisonicsOrder = -1;
outputFormat.ambisonicsOrdering = AmbisonicsOrdering.ACN;
outputFormat.ambisonicsNormalization = AmbisonicsNormalization.N3D;
outputFormat.channelOrder = ChannelOrder.INTERLEAVED;
if (Phonon3D.iplCreateBinauralEffect(context, inputFormat, outputFormat, ref effect) != Error.NONE)
{
Debug.Log("Unable to create Phonon 3D effect for object: " + gameObject.name + ". Please check the log file for details.");
return;
}
inputBuffer.numSamples = frameSize;
inputBuffer.audioFormat = inputFormat;
inputBuffer.deInterleavedBuffer = IntPtr.Zero;
outputBuffer.numSamples = frameSize;
outputBuffer.audioFormat = outputFormat;
outputBuffer.deInterleavedBuffer = IntPtr.Zero;
listener = FindObjectOfType <AudioListener>();
StartCoroutine(EndOfFrameUpdate());
}
//
// Destroys the source.
//
void OnDestroy()
{
Phonon3D.iplDestroyBinauralEffect(ref effect);
Phonon3D.iplDestroy3DContext(ref context);
}
