// Update is called once per frame
void LateUpdate()
{
_isPlaying = audio_source.isPlaying;
_isVirtual = audio_source.isVirtual;
if (!_isPlaying)
{
return;
}
float tmp_d = distance;
float tmp_e = elevation;
float tmp_a = azimuth;
//Calculate distance between listener and sound source
distance = Mathf.Abs(Vector3.Distance(transform.position, listener.transform.position)) / scale;
//Calculate diretion vector between listener and sound source
Vector3 dir = (transform.position - listener.transform.position).normalized;
//Calculate angle of elevation between listener and sound source
if (Vector3.Cross(listener.transform.right, Vector3.ProjectOnPlane(dir, listener.transform.up)) == Vector3.zero)
{
Vector3 dirE = Vector3.ProjectOnPlane(dir, listener.transform.forward);
elevation = Vector3.SignedAngle(listener.transform.right, dirE, listener.transform.forward);
}
else
{
Vector3 dirE = Vector3.ProjectOnPlane(dir, listener.transform.right);
elevation = -Vector3.SignedAngle(listener.transform.forward, dirE, listener.transform.right);
}
elevation = elevation % 180 == 0 ? 0 : elevation;
if (elevation < -90f)
{
elevation = -90 - (elevation % 90);
}
if (elevation > 90f)
{
elevation = 90 - (elevation % 90);
}
//Calculate angle of azimuth between listener and sound source
Vector3 dirA = Vector3.ProjectOnPlane(dir, listener.transform.up);
azimuth = Vector3.SignedAngle(listener.transform.forward, dirA, listener.transform.up);
if (azimuth < 0f)
{
azimuth = 360f + azimuth;
}
if (tmp_d == distance && tmp_e == elevation && tmp_a == azimuth)
{
return;
}
Eigen_HRTF.get_filters(distance, elevation, azimuth, (int)pinna, filter_l, filter_r, delays, idxs);
}
void Awake()
{
filter_l = new float[257 * 2];
filter_r = new float[257 * 2];
filter_l2 = new float[257 * 2];
filter_r2 = new float[257 * 2];
buffer_l = new float[589];
buffer_r = new float[589];
signal_buffer = new float[128];
delays = new int[2];
prev_delays = new int[2];
idxs = new int[2];
prev_idxs = new int[2];
idxs[0] = -2;
idxs[1] = -2;
prev_idxs[0] = -1;
prev_idxs[1] = -1;
delays[0] = 0;
delays[1] = 0;
prev_delays[0] = 0;
prev_delays[1] = 0;
CheckAudioSource();
if (listener == null)
{
//Seek audio listeners in scene
AudioListener[] listeners = UnityEngine.Object.FindObjectsOfType <AudioListener>();
if (listeners.Length == 0)
{
//The sound doesn't make sense without no one to hear it
Debug.LogWarning("No Listner founds in this scene.");
}
else
{
//Set a listener
listener = listeners[0].gameObject;
}
}
Eigen_HRTF.eigen_init(Application.streamingAssetsPath + "/HRTFu/");
_isPlaying = audio_source.isPlaying;
//Faust
ctx = new Faust_Context(getBufferSize());
ctx.context_init(AudioSettings.outputSampleRate);
for (int i = 0; i < parameters.Length; i++)
{
setParameter(i, parameters[i]);
}
}
void OnAudioFilterRead(float[] data, int channels)
{
//sampler2.Begin();
//if (_isPlaying && !_isVirtual) Eigen_HRTF.DSP(data, data.Length, filter_l, filter_r, filter_l2, filter_r2, buffer_l, buffer_r, prev_delays, delays, prev_idxs, idxs, gain);
//if (!_isPlaying || _isVirtual) return;
if (!_isPlaying)
{
return;
}
ctx.process(data, data.Length / channels, channels);
Eigen_HRTF.DSP(data, data.Length, filter_l, filter_r, filter_l2, filter_r2, buffer_l, buffer_r, prev_delays, delays, prev_idxs, idxs, gain);
//if (_isPlaying) Eigen_HRTF.DSP(data, data.Length, filter_l, filter_r, filter_l2, filter_r2, buffer_l, buffer_r, prev_delays, delays, prev_idxs, idxs, gain);
//if (_isPlaying && !_isVirtual) Eigen_HRTF.full_DSP(data, data.Length, signal_buffer, filter_l, filter_r, buffer_l, buffer_r, delays, gain);
//{
//if (window_DSP) Eigen_HRTF.window_DSP(data, data.Length, filter_l, filter_r, buffer_l, buffer_r, delays, gain);
//else
//{
// if(fast_DSP) Eigen_HRTF.fast_DSP(data, data.Length, filter_l, filter_r,filter_l2,filter_r2, buffer_l, buffer_r,prev_delays, delays,prev_idxs,idxs, gain);
// else Eigen_HRTF.DSP(data, data.Length, signal_buffer, filter_l, filter_r, buffer_l, buffer_r, delays, gain);
//}
}
