public float[][] GetWaveData()
{
int numchannels = 0;
int dummy = 0;
FMOD.SOUND_FORMAT dummyformat = FMOD.SOUND_FORMAT.NONE;
FMOD.DSP_RESAMPLER dummyresampler = FMOD.DSP_RESAMPLER.LINEAR;
int count = 0;
const int WAVEDATASIZE = 512;
system.getSoftwareFormat(ref dummy, ref dummyformat, ref numchannels, ref dummy, ref dummyresampler, ref dummy);
float[][] wavedata = new float[numchannels][];
/*
* DRAW WAVEDATA
*/
for (count = 0; count < numchannels; count++)
{
wavedata[count] = new float[WAVEDATASIZE];
if (currentChannel != null)
{
currentChannel.getWaveData(wavedata[count], WAVEDATASIZE, count);
}
}
return(wavedata);
}
private void drawSpectrum(Graphics g)
{
int numchannels = 0;
int dummy = 0;
FMOD.SOUND_FORMAT dummyformat = FMOD.SOUND_FORMAT.NONE;
FMOD.DSP_RESAMPLER dummyresampler = FMOD.DSP_RESAMPLER.LINEAR;
int count = 0;
int count2 = 0;
system.getSoftwareFormat(ref dummy, ref dummyformat, ref numchannels, ref dummy, ref dummyresampler, ref dummy);
/*
* DRAW SPECTRUM
*/
for (count = 0; count < numchannels; count++)
{
float max = 0;
system.getSpectrum(spectrum, SPECTRUMSIZE, count, FMOD.DSP_FFT_WINDOW.TRIANGLE);
for (count2 = 0; count2 < 255; count2++)
{
if (max < spectrum[count2])
{
max = spectrum[count2];
}
}
/*
* The upper band of frequencies at 44khz is pretty boring (ie 11-22khz), so we are only
* going to display the first 256 frequencies, or (0-11khz)
*/
for (count2 = 0; count2 < 255; count2++)
{
float height;
height = spectrum[count2] / max * GRAPHICWINDOW_HEIGHT;
if (height >= GRAPHICWINDOW_HEIGHT)
{
height = GRAPHICWINDOW_HEIGHT - 1;
}
if (height < 0)
{
height = 0;
}
height = GRAPHICWINDOW_HEIGHT - height;
g.FillRectangle(mBrushGreen, count2, height, 1.0f, GRAPHICWINDOW_HEIGHT - height);
}
}
}
// ========================================================================================================================================
#region Unity lifecycle
void Start()
{
this.gameObjectName = this.gameObject.name;
result = FMOD.Factory.System_Create(out system);
AudioStreamSupport.ERRCHECK(result, this.logLevel, this.gameObjectName, null, "FMOD.Factory.System_Create");
result = system.getVersion(out version);
AudioStreamSupport.ERRCHECK(result, this.logLevel, this.gameObjectName, null, "system.getVersion");
if (version < FMOD.VERSION.number)
{
var msg = string.Format("FMOD lib version {0} doesn't match header version {1}", version, FMOD.VERSION.number);
throw new System.Exception(msg);
}
int rate;
FMOD.SPEAKERMODE sm;
int sc;
result = system.getSoftwareFormat(out rate, out sm, out sc);
AudioStreamSupport.ERRCHECK(result, this.logLevel, this.gameObjectName, null, "system.getSoftwareFormat");
AudioStreamSupport.LOG(LogLevel.INFO, this.logLevel, this.gameObjectName, null, "FMOD samplerate: {0}, speaker mode: {1}, num. of raw speakers {2}", rate, sm, sc);
// TODO: evaluate maxchannels
result = system.init(32, FMOD.INITFLAGS.NORMAL, extradriverdata);
AudioStreamSupport.ERRCHECK(result, this.logLevel, this.gameObjectName, null, "system.init");
this.SetOutput(this.outputDriverID);
/* tags ERR_FILE_COULDNOTSEEK:
* http://stackoverflow.com/questions/7154223/streaming-mp3-from-internet-with-fmod
* http://www.fmod.org/docs/content/generated/FMOD_System_SetFileSystem.html
*/
// result = system.setFileSystem(null, null, null, null, null, null, -1);
// ERRCHECK(result, "system.setFileSystem");
// Explicitly create the delegate object and assign it to a member so it doesn't get freed
// by the garbage collected while it's being used
this.pcmreadcallback = new FMOD.SOUND_PCMREADCALLBACK(PCMReadCallback);
this.pcmsetposcallback = new FMOD.SOUND_PCMSETPOSCALLBACK(PCMSetPosCallback);
this.elementSize = System.Runtime.InteropServices.Marshal.SizeOf(typeof(System.Int16));
// decodebuffersize samples worth of bytes will be called in read callback
// createSound calls back, too
this.pcmReadCallbackBuffer = new List <List <byte> >();
this.pcmReadCallbackBuffer.Add(new List <byte>());
this.pcmReadCallbackBuffer.Add(new List <byte>());
}
private void comboBoxRecord_SelectedIndexChanged(object sender, System.EventArgs e)
{
FMOD.CREATESOUNDEXINFO exinfo = new FMOD.CREATESOUNDEXINFO();
FMOD.RESULT result;
FMOD.DSP_RESAMPLER resampler = FMOD.DSP_RESAMPLER.MAX;
int selected = comboBoxRecord.SelectedIndex;
int temp = 0;
FMOD.SOUND_FORMAT format = FMOD.SOUND_FORMAT.NONE;
result = system.setSoftwareFormat(OUTPUTRATE, FMOD.SOUND_FORMAT.PCM16, 1, 0, 0);
ERRCHECK(result);
result = system.init(32, FMOD.INITFLAGS.NORMAL, (IntPtr)null);
ERRCHECK(result);
result = system.getSoftwareFormat(ref outputfreq, ref format, ref temp, ref temp, ref resampler, ref temp);
ERRCHECK(result);
/*
* Create a sound to record to.
*/
exinfo.cbsize = Marshal.SizeOf(exinfo);
exinfo.numchannels = 1;
exinfo.format = FMOD.SOUND_FORMAT.PCM16;
exinfo.defaultfrequency = OUTPUTRATE;
exinfo.length = (uint)(exinfo.defaultfrequency * 2 * exinfo.numchannels * 5);
result = system.createSound((string)null, (FMOD.MODE._2D | FMOD.MODE.SOFTWARE | FMOD.MODE.LOOP_NORMAL | FMOD.MODE.OPENUSER), ref exinfo, ref sound);
ERRCHECK(result);
comboBoxOutput.Enabled = false;
comboBoxPlayback.Enabled = false;
comboBoxRecord.Enabled = false;
/*
* Start recording
*/
result = system.recordStart(selected, sound, true);
ERRCHECK(result);
Thread.Sleep(200); /* Give it some time to record something */
result = system.playSound(FMOD.CHANNELINDEX.REUSE, sound, false, ref channel);
ERRCHECK(result);
/* Dont hear what is being recorded otherwise it will feedback. Spectrum analysis is done before volume scaling in the DSP chain */
result = channel.setVolume(0);
ERRCHECK(result);
}
protected virtual IEnumerator Start()
{
this.gameObjectName = this.gameObject.name;
/*
* Create a System object and initialize.
*/
result = FMOD.Factory.System_Create(out system);
ERRCHECK(result, "Factory.System_Create");
result = system.getVersion(out version);
ERRCHECK(result, "system.getVersion");
if (version < FMOD.VERSION.number)
{
var msg = string.Format("FMOD lib version {0} doesn't match header version {1}", version, FMOD.VERSION.number);
LOG(LogLevel.ERROR, msg);
if (this.OnError != null)
{
this.OnError.Invoke(this.gameObjectName, msg);
}
throw new System.Exception(msg);
}
/*
* initial internal FMOD samplerate should be 48000 on desktop; we change it on the sound only when stream requests it.
*/
result = system.setSoftwareFormat(48000, this.speakerMode, this.numOfRawSpeakers);
ERRCHECK(result, "system.setSoftwareFormat");
int rate;
FMOD.SPEAKERMODE sm;
int smch;
result = system.getSoftwareFormat(out rate, out sm, out smch);
ERRCHECK(result, "system.getSoftwareFormat");
LOG(LogLevel.INFO, "FMOD samplerate: {0}, speaker mode: {1}, num. of raw speakers {2}", rate, sm, smch);
// must be be4 init on iOS ...
//result = system.setOutput(FMOD.OUTPUTTYPE.NOSOUND);
//ERRCHECK(result, "system.setOutput");
if (this is AudioStreamMinimal)
{
result = system.init(8, FMOD.INITFLAGS.NORMAL, extradriverdata);
}
else
{
result = system.init(8, FMOD.INITFLAGS.STREAM_FROM_UPDATE, extradriverdata);
}
ERRCHECK(result, "system.init");
/* Increase the file buffer size a little bit to account for Internet lag. */
result = system.setStreamBufferSize(streamBufferSize, FMOD.TIMEUNIT.RAWBYTES);
ERRCHECK(result, "system.setStreamBufferSize");
/* tags ERR_FILE_COULDNOTSEEK:
* http://stackoverflow.com/questions/7154223/streaming-mp3-from-internet-with-fmod
* http://www.fmod.org/docs/content/generated/FMOD_System_SetFileSystem.html
*/
result = system.setFileSystem(null, null, null, null, null, null, -1);
ERRCHECK(result, "system.setFileSystem");
if (this.playOnStart)
{
this.Play();
}
yield return(null);
this.ready = true;
}