/// <summary>
/// Frees channel, sound and DSP resources
/// </summary>
private void FreeChannelResources()
{
//stop any playing channels
if (_channel != null)
{
_channel.stop();
_channel = null;
}
//release sound
if (_sound != null)
{
_sound.release();
_sound = null;
}
//free waveform DSP
if (_dsp != null)
{
_dsp.release();
_dsp = null;
}
//destroy the equalizer
DestroyEqualizer();
}
public string RecognizeByAudioSource(FMOD.DSP m_FFTDsp, int rate)
{
string result = null;
IntPtr unmanagedData;
uint length;
m_FFTDsp.getParameterData((int)FMOD.DSP_FFT.SPECTRUMDATA, out unmanagedData, out length);
FMOD.DSP_PARAMETER_FFT fftData = (FMOD.DSP_PARAMETER_FFT)Marshal.PtrToStructure(unmanagedData, typeof(FMOD.DSP_PARAMETER_FFT));
if (fftData.spectrum != null && fftData.spectrum.Length > 0)
{
playingAudioSpectrum = fftData.spectrum[0];
Recognize(ref result, rate);
}
return(result);
}
// Initializes and returns the FMOD Resonance Audio Listener Plugin.
private static FMOD.DSP Initialize()
{
// Search through all busses on in banks.
int numBanks = 0;
FMOD.DSP dsp = new FMOD.DSP();
FMOD.Studio.Bank[] banks = null;
RuntimeManager.StudioSystem.getBankCount(out numBanks);
RuntimeManager.StudioSystem.getBankList(out banks);
for (int currentBank = 0; currentBank < numBanks; ++currentBank)
{
int numBusses = 0;
FMOD.Studio.Bus[] busses = null;
banks[currentBank].getBusCount(out numBusses);
banks[currentBank].getBusList(out busses);
RuntimeManager.StudioSystem.flushCommands();
for (int currentBus = 0; currentBus < numBusses; ++currentBus)
{
// Make sure the channel group of the current bus is assigned properly.
string busPath = null;
busses[currentBus].getPath(out busPath);
RuntimeManager.StudioSystem.getBus(busPath, out busses[currentBus]);
RuntimeManager.StudioSystem.flushCommands();
FMOD.ChannelGroup channelGroup;
busses[currentBus].getChannelGroup(out channelGroup);
RuntimeManager.StudioSystem.flushCommands();
if (channelGroup.hasHandle())
{
int numDsps = 0;
channelGroup.getNumDSPs(out numDsps);
for (int currentDsp = 0; currentDsp < numDsps; ++currentDsp)
{
channelGroup.getDSP(currentDsp, out dsp);
string dspNameSb;
int unusedInt = 0;
uint unusedUint = 0;
dsp.getInfo(out dspNameSb, out unusedUint, out unusedInt, out unusedInt, out unusedInt);
if (dspNameSb.ToString().Equals(listenerPluginName) && dsp.hasHandle())
{
return(dsp);
}
}
}
}
}
Debug.LogError(listenerPluginName + " not found in the FMOD project.");
return(dsp);
}
public static void Update()
{
if (system == null)
{
return;
}
// Update sound
if (channel != null)
{
FMOD.MODE mode = FMOD.MODE.DEFAULT;
channel.getMode(ref mode);
if ((mode & FMOD.MODE._3D) == FMOD.MODE._3D)
{
FMOD.VECTOR pos; pos.x = 0.0f; pos.y = 0.0f; pos.z = 0.0f;
FMOD.VECTOR vel; vel.x = 0.0f; vel.y = 0.0f; vel.z = 0.0f;
channel.get3DAttributes(ref pos, ref vel);
float distance = (float)Math.Sqrt((double)(pos.x * pos.x + pos.y * pos.y));
float minDist = 0.0f, maxDist = 1000.0f;
channel.get3DMinMaxDistance(ref minDist, ref maxDist);
float distRatio = distance / maxDist;
if (ignorefod == false)
{
// Set direct and reverb occlusion
float direct = 1.0f - GetDistanceRatioValue(CONTROLTYPE.DIRECT, distRatio);
float reverb = 1.0f - GetDistanceRatioValue(CONTROLTYPE.REVERB, distRatio);
channel.set3DOcclusion(direct, reverb);
// Set lowpass
FMOD.DSP head = null;
channel.getDSPHead(ref head);
if (head != null)
{
int inputs = 0;
head.getNumInputs(ref inputs);
for (int i = 0; i < inputs; i++)
{
FMOD.DSP dsp = null;
FMOD.DSPConnection dspcon = null;
head.getInput(i, ref dsp, ref dspcon);
if (dsp == null)
{
continue;
}
FMOD.DSP_TYPE type = FMOD.DSP_TYPE.UNKNOWN;
dsp.getType(ref type);
if (type == FMOD.DSP_TYPE.LOWPASS_SIMPLE)
{
float hrtf = 1.0f;
FMOD.VECTOR dir;
dir.x = pos.x;
dir.y = pos.y;
dir.z = 0.0f;
float length = (float)Math.Sqrt((double)(dir.x * dir.x + dir.y * dir.y));
if (length > 0.0001f)
{
length = 1.0f / length;
dir.x *= length;
dir.y *= length;
float _angle = (float)Math.Acos((double)dir.y);
hrtf = 1.0f - HRTFDATA.Scale * Math.Min(1.0f, Math.Max(0.0f, (_angle - HRTFDATA.MinAngle) / (HRTFDATA.MaxAngle - HRTFDATA.MinAngle)));
}
float lowpass = 21990.0f * GetDistanceRatioValue(CONTROLTYPE.LOWPASS, distRatio) * hrtf + 10.0f;
dsp.setParameter((int)FMOD.DSP_LOWPASS_SIMPLE.CUTOFF, lowpass);
break;
}
}
}
// Set pan level
float panlevel = GetDistanceRatioValue(CONTROLTYPE.PANLEVEL, distRatio);
channel.set3DPanLevel(panlevel);
}
else
{
channel.set3DPanLevel(0.0f);
}
}
}
system.update();
}
public static bool Play(string strRootPath, SoundItemProperty prop)
{
FMOD.RESULT result;
if (channel != null)
{
channel.stop();
}
string name = strRootPath + prop.FileName;
FMOD.MODE mode = FMOD.MODE.DEFAULT;
if (prop.Type == SoundItemProperty.typeSound[0])
{
mode |= FMOD.MODE._2D | FMOD.MODE.CREATESAMPLE | FMOD.MODE.SOFTWARE;
}
else if (prop.Type == SoundItemProperty.typeSound[1])
{
mode |= FMOD.MODE._3D | FMOD.MODE.CREATESAMPLE | FMOD.MODE.SOFTWARE | FMOD.MODE._3D_LINEARROLLOFF | FMOD.MODE._3D_WORLDRELATIVE | FMOD.MODE._3D_IGNOREGEOMETRY;
}
else if (prop.Type == SoundItemProperty.typeSound[2])
{
mode |= FMOD.MODE._2D | FMOD.MODE.CREATESTREAM | FMOD.MODE.SOFTWARE;
}
if (prop.Loop == true)
{
mode |= FMOD.MODE.LOOP_NORMAL;
}
result = system.createSound(name, mode, ref sound);
ERRCHECK(result);
result = system.playSound(FMOD.CHANNELINDEX.FREE, sound, true, ref channel);
ERRCHECK(result);
if (prop.Type == SoundItemProperty.typeSound[1])
{
channel.set3DMinMaxDistance(100.0f, prop.MaxDistance);
FMOD.VECTOR pos = new FMOD.VECTOR();
pos.x = 0.0f; pos.y = 0.0f; pos.z = 0.0f;
FMOD.VECTOR vel = new FMOD.VECTOR();
vel.x = 0.0f; vel.y = 0.0f; vel.z = 0.0f;
channel.set3DAttributes(ref pos, ref vel);
FMOD.DSP dsp = null;
result = system.createDSPByType(FMOD.DSP_TYPE.LOWPASS_SIMPLE, ref dsp);
ERRCHECK(result);
dsp.setParameter((int)FMOD.DSP_LOWPASS_SIMPLE.CUTOFF, 22000.0f);
FMOD.DSPConnection dspcon = null;
channel.addDSP(dsp, ref dspcon);
}
channel.setVolume((float)prop.Volume * 0.01f);
channel.setCallback(CHANNELCALLBACK);
channel.setPaused(false);
return(true);
}
public DSPSoundEvent(DSPSoundEvent ev)
: base(ev)
{
_dsp = ev._dsp;
}
private void SetEqualizerBand(FMOD.DSP eqDsp, float gain)
{
FMOD.RESULT result;
//set the gain for the specified eq band
result = eqDsp.setParameterFloat((int)FMOD.DSP_PARAMEQ.GAIN, gain);
}
internal void AddDSP(FMOD.DSP dsp)
{
_dspList.Add(dsp);
}
public DSPSoundEvent(DSPSoundEvent ev)
: base(ev)
{
_dsp = ev._dsp;
}
/// <summary>
/// Method responsible for disposing the variables that play the songs
/// </summary>
private void DisposeSound()
{
timer1.Stop();
FMOD.RESULT result;
if (sound != null)
{
result = sound.release();
ERRCHECK(result);
}
sound = null;
if (system != null)
{
result = system.close();
ERRCHECK(result);
result = system.release();
ERRCHECK(result);
}
mydsp = null;
}
