public WaveFormat GetWaveFormat(int sampleRate, int numberOfChannels)
{
return(WaveFormat.CreateIeeeFloatWaveFormat(sampleRate, numberOfChannels));
}
public void SetWaveFormat(int sampleRate, int channels)
{
this.waveFormat = WaveFormat.CreateIeeeFloatWaveFormat(sampleRate, channels);
}
/// <summary>
/// Constructs a new Audio Output Device.
/// </summary>
///
/// <param name="device">Global identifier of the audio output device.</param>
/// <param name="owner">The owner window handle.</param>
/// <param name="samplingRate">The sampling rate of the device.</param>
/// <param name="channels">The number of channels of the device.</param>
///
public AudioOutputDevice(Guid device, IntPtr owner, int samplingRate, int channels)
{
this.owner = owner;
this.samplingRate = samplingRate;
this.channels = channels;
this.device = device;
DirectSound ds = new DirectSound(device);
ds.SetCooperativeLevel(owner, CooperativeLevel.Priority);
// Set the output format
WaveFormat waveFormat = WaveFormat.CreateIeeeFloatWaveFormat(samplingRate, channels);
bufferSize = 8 * waveFormat.AverageBytesPerSecond;
// Setup the secondary buffer
SoundBufferDescription desc2 = new SoundBufferDescription();
desc2.Flags =
BufferFlags.GlobalFocus |
BufferFlags.ControlPositionNotify |
BufferFlags.GetCurrentPosition2;
desc2.BufferBytes = bufferSize;
desc2.Format = waveFormat;
buffer = new SecondarySoundBuffer(ds, desc2);
var list = new List <NotificationPosition>();
int numberOfPositions = 32;
// Set notification for buffer percentiles
for (int i = 0; i < numberOfPositions; i++)
{
list.Add(new NotificationPosition()
{
WaitHandle = new AutoResetEvent(false),
Offset = i * bufferSize / numberOfPositions + 1,
});
}
// Set notification for end of buffer
list.Add(new NotificationPosition()
{
Offset = bufferSize - 1,
WaitHandle = new AutoResetEvent(false)
});
firstHalfBufferIndex = numberOfPositions / 2;
secondHalfBufferIndex = numberOfPositions;
notifications = list.ToArray();
Accord.Diagnostics.Debug.Assert(notifications[firstHalfBufferIndex].Offset == bufferSize / 2 + 1);
Accord.Diagnostics.Debug.Assert(notifications[secondHalfBufferIndex].Offset == bufferSize - 1);
// Make a copy of the wait handles
waitHandles = new WaitHandle[notifications.Length];
for (int i = 0; i < notifications.Length; i++)
{
waitHandles[i] = notifications[i].WaitHandle;
}
// Store all notification positions
buffer.SetNotificationPositions(notifications);
}
private WaveFormat GetWaveFormatMP3Supported(WaveFormat waveFormat)
{
return(WaveFormat.CreateIeeeFloatWaveFormat(
Math.Min(MP3_MAX_SAMPLE_RATE, waveFormat.SampleRate),
Math.Min(MP3_MAX_NUMBER_CHANNELS, waveFormat.Channels)));
}
public void CanRequestIfFormatIsSupportedIeee()
{
GetAudioClient().IsFormatSupported(AudioClientShareMode.Shared, WaveFormat.CreateIeeeFloatWaveFormat(44100, 2));
}
/// <summary>
/// Initializes a new instance of the Tone class, an ISampleProvider that
/// reads fundamental tone and overtone characteristics from a file.
/// </summary>
/// <param name="sampleRate">Desired sample rate.</param>
/// <param name="channel">Number of channels.</param>
/// <param name="overtones">List of WaveCharacter objects for each overtone.</param>
public SineSumSampleProvider(int sampleRate, int channel)
{
waveFormat = WaveFormat.CreateIeeeFloatWaveFormat(sampleRate, channel);
Tones = new List <double[]>();
}
public TrackSampleProvider()
{
mix = new MixingSampleProvider(WaveFormat.CreateIeeeFloatWaveFormat(44100, 2));
//pan = new PanningSampleProvider(mix);
volume = new VolumeSampleProvider(mix);
}
/// <summary>
/// Initialises a new instance of SampleProviderConverterBase
/// </summary>
/// <param name="source">Source Wave provider</param>
public SampleProviderConverterBase(IWaveProvider source)
{
this.source = source;
waveFormat = WaveFormat.CreateIeeeFloatWaveFormat(source.WaveFormat.SampleRate, source.WaveFormat.Channels);
}
public VorbisWaveReader(string fileName)
{
_reader = new VorbisReader(fileName);
_waveFormat = WaveFormat.CreateIeeeFloatWaveFormat(_reader.SampleRate, _reader.Channels);
}
public static void Init()
{
//"boom shakalaka", "Wubba lubba dub dub", "Slow the frak down", "speed the hell up", "Play Normal Speed"
//"Hit the sack jack",
recorder = new WaveInEvent();
samplerate = recorder.WaveFormat.SampleRate;
recorder.DataAvailable += RecorderOnDataAvailable;
recorder.WaveFormat = WaveFormat.CreateIeeeFloatWaveFormat(44100, 1);
_timer = new Timer(x => UpdateThread(), null, 0, 500);
recorder.StartRecording();
// Create an in-process speech recognizer for the en-US locale.
recognizer = new SpeechRecognitionEngine(new System.Globalization.CultureInfo("en-US"));
Choices normalCommands = new Choices();
normalCommands.Add(new string[] { "Clear Queue" });
normalCommands.Add(new string[] { "Speed Up" });
normalCommands.Add(new string[] { "Slow Down" });
normalCommands.Add(new string[] { "Normal speed" });
GrammarBuilder gb = new GrammarBuilder();
gb.Append(normalCommands);
//Stop TTS For a user.
//BAN HAMMER and/or TIMEOUT?
//Number of TTS's (default 2)
//DynamicCommands.Add(new string[] { "Repeat dfoxlive last 5 messages" });
GrammarBuilder gb2 = new GrammarBuilder();
gb2.Append("repeat");
gb2.AppendDictation();
gb2.Append("message");
GrammarBuilder finalgb = new GrammarBuilder(new Choices(gb, gb2));
// Create the Grammar instance.
Grammar g = new Grammar(finalgb);
recognizer.LoadGrammar(g);
// Create and load a dictation grammar.
//recognizer.LoadGrammar(new DictationGrammar());
// Add a handler for the speech recognized event.
recognizer.SpeechRecognized += Sr_SpeechRecognized;
// Configure input to the speech recognizer.
recognizer.SetInputToDefaultAudioDevice();
//DEFAULT OFF.
// Start asynchronous, continuous speech recognition.
//recognizer.RecognizeAsync(RecognizeMode.Multiple);
}
public void SetWaveFormat(int sampleRate, int channels)
{
this.waveFormat = WaveFormat.CreateIeeeFloatWaveFormat(sampleRate, channels);
//Console.WriteLine("buffer " + waveFormat.BitsPerSample);
// zgornje se vpada z spodnjim "samplesRequired" ki je "count / 4"
}
public static WaveFormat GetFormat()
{
return(WaveFormat.CreateIeeeFloatWaveFormat(SAMPLE_RATE, CHANNELS));
}
// Construction event
partial void Constructed()
{
for (var device = 0; device < NAudio.Midi.MidiIn.NumberOfDevices; device++)
{
_MidiDevices.Add(NAudio.Midi.MidiIn.DeviceInfo(device).ProductName);
}
if (_MidiDevices.Count > 0)
{
MidiDevice = MidiDevices[0];
MidiVisibility = Visibility.Visible;
}
else
{
MidiVisibility = Visibility.Collapsed;
}
var waveFormat = WaveFormat.CreateIeeeFloatWaveFormat(44100, 1);
_mixer = new MixingSampleProvider(waveFormat)
{
ReadFully = true
}; // Always produce samples
_volControl = new VolumeSampleProvider(_mixer)
{
Volume = 0.25f,
};
_tremolo = new TremoloSampleProvider(_volControl, TremoloFreq, TremoloGain);
_chorus = new ChorusSampleProvider(_tremolo);
_phaser = new PhaserSampleProvider(_chorus);
_delay = new DelaySampleProvider(_phaser);
_lpf = new LowPassFilterSampleProvider(_delay, 20000);
_fftProvider = new FFTSampleProvider(8, (ss, cs) => Dispatch(() => UpdateRealTimeData(ss, cs)), _lpf);
WaveType1 = SignalGeneratorType.Sin;
Volume = -15.0; // dB
Attack = Attack2 = Attack3 = 0.01f;
Decay = Decay2 = Decay3 = 0.01f;
Sustain = Sustain2 = Sustain3 = 1.0f;
Release = Release2 = Release3 = 0.3f;
CutOff = 4000;
Q = 0.7f;
TremoloFreq = 5;
TremoloFreqMult = 1;
ChorusDelay = 0.0f;
ChorusSweep = 0.0f;
ChorusWidth = 0.0f;
PhaserDry = 0.0f;
PhaserWet = 0.0f;
PhaserFeedback = 0.0f;
PhaserFreq = 0.0f;
PhaserWidth = 0.0f;
PhaserSweep = 0.0f;
DelayMs = 0;
DelayFeedback = 0.6f;
DelayMix = 1.0f;
DelayWet = 0.5f;
DelayDry = 1.0f;
// Voice Levels in dB
Level1 = 0.0f;
Level2 = -48.0f;
Level3 = -48.0f;
}
public void mixing()
{
/*
* var mixer = new WaveMixerStream32 { AutoStop = true };
* var wav1 = new WaveFileReader(_micPath);
* var wav2 = new WaveFileReader(_loopBackPath);
*
* // float levelWav1_mic = 1.0f;
* // float levelWav2_loopBack = 1.0f;
* var waveChan1 = new WaveChannel32(wav1);
* // waveChan1.Volume = 2.0f;
* if (TextBox_LevelMic.Text.Length > 0)
* {
* string strLevelMic = TextBox_LevelMic.Text;
* if(strLevelMic != "1.0")
* {
* float fLevelMic = float.Parse(strLevelMic);
* waveChan1.Volume = fLevelMic;
* }
*
* }
* mixer.AddInputStream(waveChan1);
* var waveChan2 = new WaveChannel32(wav2);
* // waveChan2.Volume = 0.5f;
* if (TextBox_levelLoopBack.Text.Length > 0)
* {
* string strlevelLoopBack = TextBox_levelLoopBack.Text;
* if (strlevelLoopBack != "1.0")
* {
* float fLevelLoopBack = float.Parse(strlevelLoopBack);
* waveChan2.Volume = fLevelLoopBack;
* }
* }
* mixer.AddInputStream(waveChan2);
* _outputPath = TextBox_area2.Text;
*
* _fileOutputWavFullExt = System.IO.Path.Combine(_outputPath, Path.GetFileName(_micPath).Replace("_mic", ""));
* WaveFileWriter.CreateWaveFile(_fileOutputWavFullExt, mixer);
*
*/
////////////////////////////////////////////////////////////////////////////////
const int rate = 48000;
//const int bits = 32;
const int channels = 2;
//WaveFormat wave_format = new WaveFormat(rate, bits, channels);
WaveFormat wave_format = WaveFormat.CreateIeeeFloatWaveFormat(rate, channels);
var wav1 = new AudioFileReader(_micPath);
var wav2 = new AudioFileReader(_loopBackPath);
if (TextBox_LevelMic.Text.Length > 0)
{
string strLevelMic = TextBox_LevelMic.Text;
if (strLevelMic != "1.0")
{
float fLevelMic = float.Parse(strLevelMic);
wav1.Volume = fLevelMic;
}
}
if (TextBox_levelLoopBack.Text.Length > 0)
{
string strlevelLoopBack = TextBox_levelLoopBack.Text;
if (strlevelLoopBack != "1.0")
{
float fLevelLoopBack = float.Parse(strlevelLoopBack);
wav2.Volume = fLevelLoopBack;
}
}
var resampler2 = new MediaFoundationResampler(wav2, wave_format);
var mixer = new MixingSampleProvider(wave_format);
// var mixer = new MixingSampleProvider(new[] { wav1, wav2 });
mixer.AddMixerInput(resampler2);
mixer.AddMixerInput(wav1.ToWaveProvider());
_outputPath = TextBox_area2.Text;
this.Dispatcher.BeginInvoke((Action)(() =>
{
if (_outputPath.Length == 0)
{
_outputPath = _mainWindow.TextBox_path.Text;
TextBox_area2.Text = _outputPath;
}
_fileOutputWavFullExt = System.IO.Path.Combine(_outputPath, Path.GetFileName(_micPath).Replace("_mic", ""));
WaveFileWriter.CreateWaveFile(_fileOutputWavFullExt, mixer.ToWaveProvider());
}));
}
private void StartRecording(bool shouldTryUseExclusive = true)
{
if (waveIn != null)
{
StopRecording();
}
if (SelectedInputSource != null)
{
this.codec = SelectedCodec.Codec;
var deviceFormat = WaveFormat.CreateIeeeFloatWaveFormat(codec.RecordFormat.SampleRate, codec.RecordFormat.Channels);
bool canUseExclusive = false;
if (SelectedInputSource.Provider == DeviceProvider.Wasapi)
{
var mmdevice = SelectedInputSource.MMDevice;
WaveFormatExtensible bestMatch;
canUseExclusive = mmdevice.AudioClient.IsFormatSupported(AudioClientShareMode.Exclusive, deviceFormat, out bestMatch);
if (canUseExclusive && shouldTryUseExclusive)
{
if (bestMatch != null)
{
deviceFormat = bestMatch;
}
}
else
{
mmdevice.AudioClient.IsFormatSupported(AudioClientShareMode.Shared, deviceFormat, out bestMatch);
if (bestMatch != null)
{
deviceFormat = bestMatch;
}
}
if (deviceFormat.Encoding != WaveFormatEncoding.IeeeFloat && deviceFormat.BitsPerSample != 16)
{
deviceFormat = mmdevice.AudioClient.MixFormat;
if (mmdevice.AudioClient.IsFormatSupported(AudioClientShareMode.Exclusive, codec.RecordFormat))
{
canUseExclusive = true;
deviceFormat = codec.RecordFormat;
}
else if (mmdevice.AudioClient.IsFormatSupported(AudioClientShareMode.Shared, codec.RecordFormat))
{
canUseExclusive = false;
deviceFormat = codec.RecordFormat;
}
else
{
WaveFormat newFormat;
WaveFormat altWaveFormat = new WaveFormat(deviceFormat.SampleRate, 16, deviceFormat.Channels);
WaveFormat altFloatFormat = WaveFormat.CreateIeeeFloatWaveFormat(mmdevice.AudioClient.MixFormat.SampleRate, mmdevice.AudioClient.MixFormat.Channels);
if (mmdevice.AudioClient.IsFormatSupported(AudioClientShareMode.Exclusive, altFloatFormat))
{
canUseExclusive = true;
newFormat = altFloatFormat;
}
else if (mmdevice.AudioClient.IsFormatSupported(AudioClientShareMode.Exclusive, altWaveFormat))
{
canUseExclusive = true;
newFormat = altWaveFormat;
}
else if (mmdevice.AudioClient.IsFormatSupported(AudioClientShareMode.Shared, altFloatFormat))
{
canUseExclusive = false;
newFormat = altFloatFormat;
}
else if (mmdevice.AudioClient.IsFormatSupported(AudioClientShareMode.Shared, altWaveFormat))
{
canUseExclusive = false;
newFormat = altWaveFormat;
}
else
{
throw new Exception("Device does not support 16bit PCM, or device is in use");
}
deviceFormat = newFormat;
Console.WriteLine("Initializing Wasapi\n Device: {0}\n Format: {1}\n Mode: {2}\n Resampling: {3}",
mmdevice.FriendlyName,
deviceFormat,
canUseExclusive ? "Exclusive" : "Shared",
deviceFormat.Equals(codec.RecordFormat) ? "NO" : "YES");
}
}
AudioClientShareMode shareMode;
if (canUseExclusive && shouldTryUseExclusive)
{
shareMode = AudioClientShareMode.Exclusive;
}
else
{
shareMode = AudioClientShareMode.Shared;
}
Guid audioSessionGuid = Guid.NewGuid();
try
{
mmdevice.AudioClient.Reset();
}
catch { }
BufferTargetMs = Math.Max(BufferTargetMs, mmdevice.MinBufferDurationMs);
var w = new WasapiCapture(mmdevice, BufferTargetMs);
w.RecordingStopped += wasapi_RecordingStopped;
waveIn = w;
waveIn.WaveFormat = deviceFormat;
w.ShareMode = shareMode;
LevelManager = new AudioInLevelManager(w, mmdevice);
}
else
{
Console.WriteLine("Initializing WaveIn{0}. Buffer:{1}ms Device:{2} Format:{3}", UseWaveEvent ? "Event" : "", BufferTargetMs, SelectedInputSource.WavDeviceNumber, deviceFormat);
if (UseWaveEvent)
{
var w = new WaveInEvent();
w.BufferMilliseconds = BufferTargetMs;
w.DeviceNumber = SelectedInputSource.WavDeviceNumber;
LevelManager = new AudioInLevelManager(w);
waveIn = w;
}
else
{
var w = new WaveIn();
w.BufferMilliseconds = BufferTargetMs;
w.DeviceNumber = SelectedInputSource.WavDeviceNumber;
LevelManager = new AudioInLevelManager(w);
waveIn = w;
}
waveIn.WaveFormat = deviceFormat;
canUseExclusive = false;
}
waveIn.DataAvailable += waveIn_DataAvailable;
waveIn.RecordingStopped += waveIn_RecordingStopped;
try
{
waveIn.StartRecording();
ControlsEnabled = false;
}
catch (NAudio.MmException ex)
{
Console.WriteLine("Audio Error: Couldn't open recording device\n{0}", ex.Message);
waveIn = null;
IsRecording = false;
}
catch (ArgumentException ex)
{
Console.WriteLine("Couldn't start recording: {0}", ex.Message);
IsRecording = false;
return;
}
catch (Exception ex)
{
Console.WriteLine("Couldn't start recording: {0}", ex);
IsRecording = false;
return;
}
}
else
{
IsRecording = false;
}
}
public VorbisWaveReader(Stream sourceStream)
{
_reader = new VorbisReader(sourceStream, false);
_waveFormat = WaveFormat.CreateIeeeFloatWaveFormat(_reader.SampleRate, _reader.Channels);
}
private static void mixFinalAudio(string outputFilename, List <KeyPosition> sounds, List <string> samples)
{
var mixedSamples = new List <OffsetSampleProvider>();
// Find P1 and P2 ends
int[] playerEnd = { -1, -1 };
foreach (var sound in sounds)
{
if (sound.keysoundId == -1 && sound.key == -1)
{
playerEnd[sound.player] = sound.offset;
}
}
foreach (var sound in sounds)
{
if (sound.keysoundId == -1)
{
continue;
}
var audioFile = new AudioFileReader(samples[sound.keysoundId]);
var volSample = new VolumeSampleProvider(audioFile);
if (volSample.WaveFormat.Channels == 1)
{
volSample = new VolumeSampleProvider(volSample.ToStereo());
}
if (volSample.WaveFormat.SampleRate != 44100)
{
// Causes pop sound at end of audio
volSample = new VolumeSampleProvider(
new WaveToSampleProvider(
new MediaFoundationResampler(
new SampleToWaveProvider(volSample),
WaveFormat.CreateIeeeFloatWaveFormat(44100, 2)
)
{
ResamplerQuality = 60
}
)
);
}
if (options.AssistClap && sound.keysoundId == assistClapIdx)
{
volSample.Volume = options.AssistClapVolume;
}
else
{
volSample.Volume = options.RenderVolume;
}
var sample = new OffsetSampleProvider(volSample);
sample.DelayBy = TimeSpan.FromMilliseconds(sound.offset);
if (sound.player >= 0 && sound.player <= 1 && playerEnd[sound.player] != -1 && sound.offset + audioFile.TotalTime.TotalMilliseconds > playerEnd[sound.player])
{
sample.Take = TimeSpan.FromMilliseconds(playerEnd[sound.player] - sound.offset);
}
mixedSamples.Add(sample);
}
var mixers = new List <MixingSampleProvider>();
for (int i = 0; i < mixedSamples.Count; i += 128)
{
var arr = mixedSamples.Skip(i).Take(128).ToArray();
mixers.Add(new MixingSampleProvider(arr));
}
var mixer = new MixingSampleProvider(mixers);
if (options.OutputFormat.ToLower() == "wav")
{
WaveFileWriter.CreateWaveFile16(outputFilename, mixer);
}
else if (options.OutputFormat.ToLower() == "mp3")
{
var tempFilename = GetTempFileName();
WaveFileWriter.CreateWaveFile16(tempFilename, mixer);
ID3TagData id3 = new ID3TagData();
id3.Album = options.Id3Album;
id3.AlbumArtist = options.Id3AlbumArtist;
id3.Title = options.Id3Title;
id3.Artist = options.Id3Artist;
id3.Genre = options.Id3Genre;
id3.Track = options.Id3Track;
id3.Year = options.Id3Year;
using (var reader = new AudioFileReader(tempFilename))
using (var writer = new LameMP3FileWriter(outputFilename, reader.WaveFormat, 320, id3))
{
reader.CopyTo(writer);
}
File.Delete(tempFilename);
}
}
public AudioSignal(int sampleRate)
{
this.WaveFormat = WaveFormat.CreateIeeeFloatWaveFormat(sampleRate, 1);
AudioService.Engine.FinishedReading += EngineFinishedReading;
}
static void Main(string[] sysargs)
{
WaveFormat format = WaveFormat.CreateIeeeFloatWaveFormat(1000000, 2);
StartupArgs args = Initialize(sysargs);
if (args.Host)
{
if (!int.TryParse(args.Port, out int port) || port < 0)
{
ErrorExit(-1, "Invalid port specified.");
}
using WasapiLoopbackCapture capture = new WasapiLoopbackCapture();
EventedListener listener = new EventedListener(IPAddress.Any, port);
List <EventedClient> clients = new List <EventedClient>();
try
{
listener.Start();
}
catch (Exception e)
{
ErrorExit(-1, $"{e.GetType().Name}: {e.Message}");
}
listener.StartAcceptClient();
listener.ClientConnected += (s, args) =>
{
lock (clients)
{
EventedClient client = args.Client;
clients.Add(client);
Console.WriteLine($"Client connected: {client.BaseSocket.RemoteEndPoint}");
}
};
capture.DataAvailable += (sender, args) =>
{
lock (clients)
{
List <EventedClient> clientsToRemove = new List <EventedClient>();
foreach (var client in clients)
{
try
{
client.SendData(args.Buffer, 0, args.BytesRecorded);
}
catch
{
clientsToRemove.Add(client);
Console.WriteLine($"Client disconnected: {client.BaseSocket.RemoteEndPoint}");
}
}
foreach (var client in clientsToRemove)
{
clients.Remove(client);
}
}
};
capture.StartRecording();
Console.WriteLine("Syncing audio as host...");
while (capture.CaptureState != NAudio.CoreAudioApi.CaptureState.Stopped)
{
;
}
}
else if (args.Sync)
{
if (!TryGetAddress(args.Address, out IPAddress address))
{
ErrorExit(-1, "Invalid address specified.");
}
if (!int.TryParse(args.Port, out int port) || port < 0)
{
ErrorExit(-1, "Invalid port specified.");
}
EventedClient client = new EventedClient();
try
{
client.Connect(address, port);
}
catch
{
ErrorExit(-2, "Cannot connect to host");
}
NetSampleProvider src = new NetSampleProvider(client);
client.StartReceiveData();
WaveOut wout = new WaveOut();
wout.Init(src);
wout.Play();
Console.WriteLine("Syncing audio as client...");
while (wout.PlaybackState != PlaybackState.Stopped)
{
;
}
}
else if (args.Help)
{
Console.WriteLine(
$@"Null.AudioSync : Sync audio with another computer
Null.AudioSync Command Arguments
Commands:
Host : Build a AudioSync server.
Sync : Connect a AudioSync server.
Arguments:
Address : Should be specified when SyncAudio from a server.
Port : Port will be listened or connected. default is 10001.
");
}
else
{
Console.WriteLine("Unknown command, use 'Null.AudioSync Help' for help");
}
}
public AudioEngine()
{
var format = WaveFormat.CreateIeeeFloatWaveFormat(44100, 1);
MultiInputProvider = new MultipleSampleToWaveProvider(format, () => OnFinishedReading());
}
public AudioPlaybackEngine(int sampleRate = 44100, int channelCount = 2)
{
mixer = new MixingSampleProvider(WaveFormat.CreateIeeeFloatWaveFormat(sampleRate, channelCount));
mixer.ReadFully = true;
mixer.MixerInputEnded += OnMixerInputEnded;
}
/// <summary>
/// Combine two stereo files to one quad file
/// </summary>
/// <param name="filePathLeft">file path to the left stereo file</param>
/// <param name="filePathRight">file path to the right stereo file</param>
/// <param name="combinedFileNamePath">file path to the combined quad file</param>
/// <returns></returns>
public static bool CombineStereoToQuad(string filePathLeft, string filePathRight, string combinedFileNamePath)
{
WaveFormat waveFormatLeft = GetWaveFormat(filePathLeft);
WaveFormat waveFormatRight = GetWaveFormat(filePathRight);
if (!waveFormatLeft.Equals(waveFormatRight))
{
Console.Out.WriteLine("The two files to combine must have the same format");
return(false);
}
if (waveFormatLeft.Channels != 2 || waveFormatRight.Channels != 2)
{
Console.Out.WriteLine("The two files to combine must be stereo");
return(false);
}
int sampleRate = waveFormatLeft.SampleRate;
float[] channel1;
float[] channel2;
float[] channel3;
float[] channel4;
SplitStereoWaveFileToMono(filePathLeft, out channel1, out channel2);
SplitStereoWaveFileToMono(filePathRight, out channel3, out channel4);
// find out what channel is longest
int maxLength = Math.Max(channel1.Length, channel3.Length);
using (WaveFileWriter wavWriter = new WaveFileWriter(combinedFileNamePath, WaveFormat.CreateIeeeFloatWaveFormat(sampleRate, 4)))
{
// write one and one float (interlaced), pad if neccesary
for (int i = 0; i < maxLength; i++)
{
if (i < channel1.Length)
{
wavWriter.WriteSample(channel1[i]);
}
else
{
wavWriter.WriteSample(0.0f);
}
if (i < channel2.Length)
{
wavWriter.WriteSample(channel2[i]);
}
else
{
wavWriter.WriteSample(0.0f);
}
if (i < channel3.Length)
{
wavWriter.WriteSample(channel3[i]);
}
else
{
wavWriter.WriteSample(0.0f);
}
if (i < channel4.Length)
{
wavWriter.WriteSample(channel4[i]);
}
else
{
wavWriter.WriteSample(0.0f);
}
}
}
return(true);
}
private void InitMixer(int sampleRate, int channels)
{
mixer = new MixingSampleProvider(WaveFormat.CreateIeeeFloatWaveFormat(sampleRate, channels)); // 32 bit IEEE floating point
mixer.ReadFully = true; // return silence even if there is no input, such you get no cawing
}
public void Init(ulong mySteamID)
{
if (isInitialized)
{
return;
}
isInitialized = true;
RemoveListenerSteamID(mySteamID);
this.mySteamID = new CSteamID(mySteamID);
newConnectionCallback = Callback <P2PSessionRequest_t> .Create(t => SteamNetworking.AcceptP2PSessionWithUser(t.m_steamIDRemote));
// default accept all
Program.MainWindow.InvokeFunc(() => GlobalHook.RegisterHandler(PushToTalkHotkey, (key, pressed) =>
{
if (pressed)
{
if (!isRecording)
{
SteamUser.StartVoiceRecording();
SteamFriends.SetInGameVoiceSpeaking(new CSteamID(mySteamID), true);
isRecording = true;
talkWaiter.Set();
lastPacket[mySteamID] = DateTime.Now;
UserStartsTalking(mySteamID);
}
}
else
{
if (isRecording)
{
SteamUser.StopVoiceRecording();
SteamFriends.SetInGameVoiceSpeaking(new CSteamID(mySteamID), false);
isRecording = false;
lastPacket[mySteamID] = null;
UserStopsTalking(mySteamID);
}
}
return(false);
}));
soundOut = new DirectSoundOut();
mixer = new MixingSampleProvider(WaveFormat.CreateIeeeFloatWaveFormat(sampleRate, 1));
mixer.ReadFully = true;
mixerWrapper = new MixerWrapper <ulong>(mixer);
silencer = new byte[(int)(new WaveFormat(sampleRate, 1).AverageBytesPerSecond *silencerBufferMs / 1000.0 / 2 * 2)];
soundOut.Init(mixer);
soundOut.Play();
new Thread(RecordingFunc).Start();
if (testLoopback)
{
new Thread(LoopbackFunc).Start();
}
else
{
new Thread(PlayingFunc).Start();
}
foreach (var t in targetSteamIDs)
{
SendDummyP2PPacket(t.Key);
}
lastPacket[mySteamID] = null;
UserVoiceEnabled(mySteamID);
}
private WaveFormat GetCurrentWaveFormat(IMFSourceReader reader, bool useOverrides, int rate, int chan, int bps)
{
IMFMediaType uncompressedMediaType;
reader.GetCurrentMediaType(MediaFoundationInterop.MF_SOURCE_READER_FIRST_AUDIO_STREAM, out uncompressedMediaType);
// Two ways to query it, first is to ask for properties (second is to convert into WaveFormatEx using MFCreateWaveFormatExFromMFMediaType)
var outputMediaType = new MediaType(uncompressedMediaType);
Guid actualMajorType = outputMediaType.MajorType;
Debug.Assert(actualMajorType == MediaTypes.MFMediaType_Audio);
Guid audioSubType = outputMediaType.SubType;
int channels = !useOverrides ? outputMediaType.ChannelCount: chan;
int bits = !useOverrides ? outputMediaType.BitsPerSample : bps;
int sampleRate = !useOverrides ? outputMediaType.SampleRate : rate;
return(audioSubType == AudioSubtypes.MFAudioFormat_PCM ? new WaveFormat(sampleRate, bits, channels) : WaveFormat.CreateIeeeFloatWaveFormat(sampleRate, channels));
}
internal void WaveFormatRestriction_ReturnsChannelCodeOverStereo()
{
var waveFormat = WaveFormat.CreateIeeeFloatWaveFormat(Recorder.MP3_MAX_SAMPLE_RATE, 6);
Assert.Contains(WaveFormatMP3Restriction.Channel, waveFormat.GetMP3RestrictionCode());
}
private void InitMixers()
{
_clientAudioMixer = new MixingSampleProvider(WaveFormat.CreateIeeeFloatWaveFormat(OUTPUT_SAMPLE_RATE, 2));
_clientAudioMixer.ReadFully = true;
}
internal void WaveFormatRestriction_ReturnsSampleRateCodeOver48k()
{
var waveFormat = WaveFormat.CreateIeeeFloatWaveFormat(96000, Recorder.MP3_MAX_NUMBER_CHANNELS);
Assert.Contains(WaveFormatMP3Restriction.SampleRate, waveFormat.GetMP3RestrictionCode());
}
public SineGen()
{
waveFormat = WaveFormat.CreateIeeeFloatWaveFormat(44100, 1);
Freq = 440;
gain = 1;
}
public WaveFileWriter GetWriter(string pathToFile, int sampleRate, int numberOfChannels)
{
return(new WaveFileWriter(pathToFile, WaveFormat.CreateIeeeFloatWaveFormat(sampleRate, numberOfChannels)));
}