public MixedAudioProvider(params NAudioProvider[] AudioProviders)
{
foreach (var provider in AudioProviders)
{
var bufferedProvider = new BufferedWaveProvider(provider.NAudioWaveFormat)
{
DiscardOnBufferOverflow = true
};
provider.DataAvailable += (S, E) =>
{
bufferedProvider.AddSamples(E.Buffer, 0, E.Length);
};
var sampleProvider = bufferedProvider.ToSampleProvider();
var providerWf = provider.WaveFormat;
// Mono to Stereo
if (providerWf.Channels == 1)
{
sampleProvider = sampleProvider.ToStereo();
}
// Resample
if (providerWf.SampleRate != WaveFormat.SampleRate)
{
sampleProvider = new WdlResamplingSampleProvider(sampleProvider, WaveFormat.SampleRate);
}
_audioProviders.Add(provider, sampleProvider);
}
if (_audioProviders.Count == 1)
{
_mixingWaveProvider = _audioProviders
.Values
.First()
.ToWaveProvider16();
}
else
{
var mixingSampleProvider = new MixingSampleProvider(_audioProviders.Values);
// Screna expects 44.1 kHz 16-bit Stereo
_mixingWaveProvider = mixingSampleProvider.ToWaveProvider16();
}
var bufferSize = (int)
(
(ReadInterval / 1000.0)
* WaveFormat.SampleRate
* WaveFormat.Channels
* (WaveFormat.BitsPerSample / 8.0)
);
_buffer = new byte[bufferSize];
Task.Factory.StartNew(Loop, TaskCreationOptions.LongRunning);
}
public SignalNotePlayer()
{
mixer = new MixingSampleProvider(WaveFormat.CreateIeeeFloatWaveFormat(44100, 1))
{
ReadFully = true
};
}
public async void PlaySound(MusicalNote[] musicalNotes, float gain, float time, SignalGeneratorType signalType)
{
var waveFormat = WaveFormat.CreateIeeeFloatWaveFormat(44100, 2);
var mix = new MixingSampleProvider(waveFormat);
foreach (var I in musicalNotes)
{
var Signal = new SignalGenerator
{
Gain = gain,
Frequency = I.Frequency,
Type = signalType
}
.Take(TimeSpan.FromSeconds(time));
mix.AddMixerInput(Signal);
}
AudioOut.Stop();
AudioOut.Init(mix);
AudioOut.Play();
while (AudioOut.PlaybackState == PlaybackState.Playing)
{
await Task.Delay((int)time * 1000);
}
}
private void InitMixer()
{
InitOsc();
List <ISampleProvider> samples = new List <ISampleProvider>();
if (osc2Menu.SelectedIndex != -1)
{
samples.Add(osc2);
}
if (osc1Menu.SelectedIndex != -1)
{
samples.Add(osc1);
}
if (osc3Menu.SelectedIndex != -1)
{
samples.Add(osc3);
}
mixer = new MixingSampleProvider(samples);
driverOut.Stop();
driverOut.Dispose();
driverOut = new WaveOut();
driverOut.Init(mixer);
WavePlay();
}
private static void Main(string[] args)
{
ISampleProvider provider1 = new SignalGenerator
{
Frequency = 1000.0f,
Gain = 0.5f
};
ISampleProvider provider2 = new SignalGenerator
{
Frequency = 1250.0f,
Gain = 0.5f
};
var takeDuration1 = TimeSpan.FromSeconds(5); // otherwise it would emit indefinitely
var takeDuration2 = TimeSpan.FromSeconds(10);
var sources = new[]
{
provider1.Take(takeDuration1),
provider2.Take(takeDuration2)
};
var mixingSampleProvider = new MixingSampleProvider(sources);
var waveProvider = mixingSampleProvider.ToWaveProvider();
WaveFileWriter.CreateWaveFile("test.wav", waveProvider);
}
public void InitializeAndPlay(MixingSampleProvider mixer)
{
_directSoundOutInstance.Init(mixer);
_directSoundOutInstance.Play();
PlaybackState = PlaybackState.Playing;
}
public static void RecordAudio(string outFile, int msToRecord)
{
string sysAudioFile = Helpers.CreateTempFileName(".wav");
string micAudioFile = Helpers.CreateTempFileName(".wav");
Thread sysThread = new Thread(() => Audio.RecordSystemAudio(sysAudioFile, msToRecord));
Thread micThread = new Thread(() => Audio.RecordMicrophone(micAudioFile, msToRecord));
sysThread.Start();
micThread.Start();
micThread.Join();
using (var reader1 = new AudioFileReader(sysAudioFile))
{
using (var reader2 = new AudioFileReader(micAudioFile))
{
reader1.Volume = 0.5f;
//reader2.Volume = 0.1f;
var mixer = new MixingSampleProvider(new[] { reader1, reader2 });
WaveFileWriter.CreateWaveFile16(outFile, mixer);
}
}
File.Delete(sysAudioFile);
File.Delete(micAudioFile);
}
public AudioOutputEngine(IAudioOutputDevice device)
{
System.Diagnostics.Debug.WriteLine($"Initializing a new audio output engine with {device.FriendlyName}");
switch (device.Type)
{
case AudioOutputDeviceType.WaveOut:
outputDevice = new WaveOut()
{
DeviceNumber = (int)device.Identifier
};
break;
case AudioOutputDeviceType.DirectSound:
outputDevice = new DirectSoundOut((Guid)device.Identifier);
break;
case AudioOutputDeviceType.ASIO:
outputDevice = new AsioOut((string)device.Identifier);
break;
}
mixer = new MixingSampleProvider(WaveFormat.CreateIeeeFloatWaveFormat(SAMPLE_RATE, NUM_CHANNEL))
{
ReadFully = true
};
outputDevice.Init(mixer);
outputDevice.Play();
}
public static void InitAll()
{
if (Initialized)
{
Main.Log("[AUDIO] Already initialized!");
return;
}
Input = new WaveInEvent();
Input.WaveFormat = GetFormat();
Input.BufferMilliseconds = 25;
Input.DataAvailable += NewInputData;
Input.StartRecording();
Mixer = new MixingSampleProvider(GetFormat());
Mixer.ReadFully = true;
Output = new WaveOutEvent();
Output.DesiredLatency = 60;
Output.Init(Mixer);
Output.Play();
Initialized = true;
Main.Log("[AUDIO] Initialized.");
}
public static void CreateMashup(string to, params string[] files)
{
if (files.Length < 2)
{
throw new Exception("Not enough files selected!");
}
var internalFormat = WaveFormat.CreateIeeeFloatWaveFormat(16000, 1);
var toFormat = WaveFormat.CreateIeeeFloatWaveFormat(44100, 1);
var mixer = new MixingSampleProvider(internalFormat);
var readers = files.Select(path => new Mp3FileReader(path)).ToList();
var waveStreams = readers.Select(WaveFormatConversionStream.CreatePcmStream).ToList();
var resampledEnumerable = waveStreams.Select(stream => new MediaFoundationResampler(stream, internalFormat)).ToList();
foreach (var resampled in resampledEnumerable)
{
mixer.AddMixerInput(resampled);
}
var waveProvider = new SampleToWaveProvider(mixer);
using (var resampler = new MediaFoundationResampler(waveProvider, toFormat))
{
MediaFoundationEncoder.EncodeToMp3(resampler, to);
}
resampledEnumerable.Dispose();
waveStreams.Dispose();
readers.Dispose();
}
private void buttonSaveSignals_Click(object sender, EventArgs e)
{
var samplesList = new List <ISampleProvider> {
wg1, wg2
};
var mixer = new MixingSampleProvider(samplesList);
var waveOut = new WaveOut();
waveOut.Init(mixer);
//waveOut.Play();
var saveSeconds = (int)numericUpDownSaveSignalsSeconds.Value;
var sfd = new SaveFileDialog {
Filter = "WAV Файл|*.wav"
};
if (sfd.ShowDialog() != DialogResult.OK)
{
return;
}
var osp = new OffsetSampleProvider(mixer)
{
TakeSamples = mixer.WaveFormat.SampleRate * saveSeconds * mixer.WaveFormat.Channels
};
WaveFileWriter.CreateWaveFile16(sfd.FileName, osp);
}
public static void ExportCustomIndices(List<CustomIndex> customIndices, string exportFolder, Dictionary<SampleGeneratingArgs, SampleSoundGenerator> loadedSamples=null) {
foreach (CustomIndex ci in customIndices) {
foreach (KeyValuePair<string, HashSet<SampleGeneratingArgs>> kvp in ci.Samples) {
if (kvp.Value.Count == 0) {
continue;
}
var samples = new List<ISampleProvider>();
var volumes = new List<double>();
int soundsAdded = 0;
if (loadedSamples != null) {
foreach (SampleGeneratingArgs args in kvp.Value) {
if (SampleImporter.ValidateSampleArgs(args, loadedSamples)) {
var sample = loadedSamples[args];
samples.Add(sample.GetSampleProvider());
volumes.Add(sample.VolumeCorrection != -1 ? sample.VolumeCorrection : 1f);
soundsAdded++;
}
}
} else {
foreach (SampleGeneratingArgs args in kvp.Value) {
try {
var sample = SampleImporter.ImportSample(args);
samples.Add(sample.GetSampleProvider());
volumes.Add(sample.VolumeCorrection != -1 ? sample.VolumeCorrection : 1f);
soundsAdded++;
} catch (Exception) { }
}
}
if (soundsAdded == 0) {
continue;
}
int maxSampleRate = samples.Max(o => o.WaveFormat.SampleRate);
int maxChannels = samples.Max(o => o.WaveFormat.Channels);
IEnumerable<ISampleProvider> sameFormatSamples = samples.Select(o => (ISampleProvider)new WdlResamplingSampleProvider(SampleImporter.SetChannels(o, maxChannels), maxSampleRate));
ISampleProvider result = new MixingSampleProvider(sameFormatSamples);
if (soundsAdded > 1) {
result = new VolumeSampleProvider(result) {
Volume = (float)(1 / Math.Sqrt(soundsAdded * volumes.Average()))
};
result = new SimpleCompressorEffect(result) {
Threshold = 16,
Ratio = 6,
Attack = 0.1,
Release = 0.1,
Enabled = true,
MakeUpGain = 15 * Math.Log10(Math.Sqrt(soundsAdded * volumes.Average()))
};
}
// TODO: Allow mp3, ogg and aif export.
string filename = ci.Index == 1 ? kvp.Key + ".wav" : kvp.Key + ci.Index + ".wav";
CreateWaveFile(Path.Combine(exportFolder, filename), result.ToWaveProvider16());
}
}
}
public static void Start(int Device)
{
DeviceId = Device;
byte[] silence = new byte[10000];
Array.Clear(silence, 0, 5000);
client.PlayVoice = true;
decoder = OpusDecoder.Create(48000, 1);
players = new Dictionary <int, BufferedWaveProvider>();
foreach (ClientData data in client.ClientList())
{
BufferedWaveProvider player = new BufferedWaveProvider(new WaveFormat(48000, 16, 1));
players[data.ClientId] = player;
player.AddSamples(silence, 0, 5000);
}
mixer = new MixingSampleProvider(players.Select((playr) => playr.Value.ToSampleProvider()));
Out = new WaveOut();
Out.DeviceNumber = Device;
Out.Init(mixer);
Out.Play();
Active = true;
}
public QueuedSpeechSynthesizer(ref MixingSampleProvider mspStandard, ref MixingSampleProvider mspLoopback, int volume, int rate)
{
synthesizer = new SpeechSynthesizer();
this.volume = volume;
this.rate = rate;
queue = new ObservableCollection <QSSQueueItem>();
this.mspStandard = mspStandard;
this.mspLoopback = mspLoopback;
int samplerate = int.Parse(File.ReadAllLines("audioformat.txt")[0].Replace("Sample rate: ", ""));
int channels = int.Parse(File.ReadAllLines("audioformat.txt")[1].Replace("Channels: ", ""));
if (channels == 1)
{
synthesizerAudioFormat = new SpeechAudioFormatInfo(samplerate, AudioBitsPerSample.Sixteen, AudioChannel.Mono);
}
else
{
synthesizerAudioFormat = new SpeechAudioFormatInfo(samplerate, AudioBitsPerSample.Sixteen, AudioChannel.Stereo);
}
waveFormat = new WaveFormat(samplerate, channels);
startSpeakLoop();
}
void BeforeDeserialization(StreamingContext sc)
{
Instance = this;
Mixer = new MixingSampleProvider(WaveFormat.CreateIeeeFloatWaveFormat(16000, 2));
Player = new DirectSoundOut();
Player.Init(Mixer);
}
private void GenerateToneWaveFile(string path, DtmfTone tone, int sampleRate, double duration, ISampleProvider noise = null)
{
var tone1 = new SignalGenerator(sampleRate, 1)
{
Gain = 0.5,
Frequency = tone.LowTone,
Type = SignalGeneratorType.Sin
}
.Take(TimeSpan.FromMilliseconds(duration));
var tone2 = new SignalGenerator(sampleRate, 1)
{
Gain = 0.5,
Frequency = tone.HighTone,
Type = SignalGeneratorType.Sin
}
.Take(TimeSpan.FromMilliseconds(duration));
var list = new List <ISampleProvider>(new[] { tone1, tone2 });
if (noise != null)
{
list.Add(noise.Take(TimeSpan.FromMilliseconds(duration)));
}
var mix = new MixingSampleProvider(list);
WaveFileWriter.CreateWaveFile16(path, mix);
}
public static void Merge(string[] paths)
{
IEnumerable <ISampleProvider> files = paths.Select(p =>
{
if (!File.Exists(p))
{
throw new FileNotFoundException(message: $"The file {p} was not found.");
}
WaveStream temp = null;
if (p.EndsWith(".mp3"))
{
temp = new Mp3FileReader(p);
}
else if (p.EndsWith(".wav"))
{
temp = new WaveFileReader(p);
}
else
{
throw new FormatException(message: $"The file {p} is of an unsupported format.");
return(null);
}
if (temp.WaveFormat.SampleRate != 48000 || temp.WaveFormat.Channels != 2 || temp.WaveFormat.BitsPerSample != 16)
{
return(new WaveFormatConversionProvider(new WaveFormat(48000, 16, 2), temp).ToSampleProvider());
}
return(temp.ToSampleProvider());
});
var fufu = new MixingSampleProvider(new WaveFormat(48000, 16, 2));
}
/// <summary>
/// Mixes two wav files to a single wav file. (Unused).
/// </summary>
public void mix()
{
window.lockForMixing();
WaveFileReader reader1 = new WaveFileReader(file1);
WaveFileReader reader2 = new WaveFileReader(file2);
int maxSampleRate = Math.Max(reader1.WaveFormat.SampleRate, reader2.WaveFormat.SampleRate);
WaveFormat format = new WaveFormat(maxSampleRate, 1);
MediaFoundationResampler resampler1 = new MediaFoundationResampler(reader1, format);
var input1 = resampler1.ToSampleProvider();
MediaFoundationResampler resampler2 = new MediaFoundationResampler(reader2, format);
var input2 = resampler2.ToSampleProvider();
ISampleProvider[] provider = { input1, input2 };
MixingSampleProvider mixer = new MixingSampleProvider(provider);
WaveFileWriter.CreateWaveFile16(mixfile, mixer);
resampler1.Dispose();
resampler2.Dispose();
reader1.Close();
reader2.Close();
reader1.Dispose();
reader2.Dispose();
window.unlock();
}
public static void ClearAll()
{
if (!Initialized)
{
Main.Log("[AUDIO] Not initialized, cannot clear all!");
return;
}
foreach (var item in Providers)
{
item.Value.ClearBuffer();
}
Providers.Clear();
IDs.Clear();
Mixer.RemoveAllMixerInputs();
Output.Stop();
Input.StopRecording();
Mixer = null;
Output = null;
Input = null;
maxID = 0;
Initialized = false;
Main.Log("[AUDIO] Cleared all data, reset.");
}
public SoundcardSampleProvider(int sampleRate, List <ushort> receiverIDs, EventHandler <TransceiverReceivingCallsignsChangedEventArgs> eventHandler)
{
WaveFormat = WaveFormat.CreateIeeeFloatWaveFormat(sampleRate, 1);
mixer = new MixingSampleProvider(WaveFormat)
{
ReadFully = true
};
receiverInputs = new List <ReceiverSampleProvider>();
this.receiverIDs = new List <ushort>();
foreach (var receiverID in receiverIDs)
{
var receiverInput = new ReceiverSampleProvider(WaveFormat, receiverID, 4);
receiverInput.ReceivingCallsignsChanged += eventHandler;
receiverInputs.Add(receiverInput);
this.receiverIDs.Add(receiverID);
mixer.AddMixerInput(receiverInput);
}
landLineRing = new ResourceSoundSampleProvider(Samples.Instance.LandLineRing)
{
Looping = true, Gain = 0
};
mixer.AddMixerInput(landLineRing);
}
public PatternSampleProvider(Pattern pattern)
{
Samples = new Samples();
this.Sequencer = new PatternSequencer(pattern, Samples);
this.waveFormat = Samples.WaveFormat;
mixer = new MixingSampleProvider(waveFormat);
}
public ReceiverSampleProvider(WaveFormat waveFormat, ushort id, int voiceInputNumber)
{
WaveFormat = waveFormat;
ID = id;
mixer = new MixingSampleProvider(WaveFormat)
{
ReadFully = true
};
voiceInputs = new List <CallsignSampleProvider>();
for (int i = 0; i < voiceInputNumber; i++)
{
var voiceInput = new CallsignSampleProvider(WaveFormat, this);
voiceInputs.Add(voiceInput);
mixer.AddMixerInput(voiceInput);
}
;
blockTone = new BlockingToneSampleProvider(WaveFormat.SampleRate, 1)
{
Gain = 0, Frequency = 180
};
mixer.AddMixerInput(blockTone.ToMono());
volume = new VolumeSampleProvider(mixer);
}
public PianoPlayer(int sampleRate = 44100, int channelCount = 2)
{
foreach (string filename in System.IO.Directory.EnumerateFiles("..\\..\\..\\..\\samples"))
{
//var components = filename
var nameComponents = System.IO.Path.GetFileName(filename).Split('.');
if ((!filename.Contains("-old")) && nameComponents[1] == "pp")
{
var noteInfo = nameComponents[2];
var key = PianoKey.Parse(noteInfo);
if (key != null)
{
key = new PianoKey(key.Octave + 1, key.Note);
var ar = new CachedSound(filename);
soundDict.Add(key, ar);
}
}
}
Console.WriteLine("Loaded sounds.");
outputDevice = new DirectSoundOut(60);
mixer = new MixingSampleProvider(WaveFormat.CreateIeeeFloatWaveFormat(sampleRate, channelCount));
mixer.ReadFully = true;
outputDevice.Init(mixer);
outputDevice.Play();
}
public frmIRSignalGenerator()
{
InitializeComponent();
switchSignalTimer = new Timer();
switchSignalTimer.Tick += SwitchSignalTimer_Tick;
generators = new List <SignalGenerator>();
gen0 = new SignalGenerator();
gen0.Type = SignalGeneratorType.Sin;
gen0.Frequency = 400;
generators.Add(gen0);
gen1 = new SignalGenerator();
gen1.Type = SignalGeneratorType.Sin;
gen1.Frequency = 1000;
generators.Add(gen1);
gen2 = new SignalGenerator();
gen2.Type = SignalGeneratorType.Sin;
gen2.Frequency = 1600;
generators.Add(gen2);
gen4 = new SignalGenerator();
gen4.Type = SignalGeneratorType.Sin;
gen4.Frequency = 2200;
generators.Add(gen4);
gen8 = new SignalGenerator();
gen8.Type = SignalGeneratorType.Sin;
gen8.Frequency = 2800;
generators.Add(gen8);
gen16 = new SignalGenerator();
gen16.Type = SignalGeneratorType.Sin;
gen16.Frequency = 3400;
generators.Add(gen16);
gen32 = new SignalGenerator();
gen32.Type = SignalGeneratorType.Sin;
gen32.Frequency = 4000;
generators.Add(gen32);
gen64 = new SignalGenerator();
gen64.Type = SignalGeneratorType.Sin;
gen64.Frequency = 4600;
generators.Add(gen64);
gen128 = new SignalGenerator();
gen128.Type = SignalGeneratorType.Sin;
gen128.Frequency = 5200;
generators.Add(gen128);
provider = new MixingSampleProvider(generators);
wo = new WaveOutEvent();
wo.Init(provider);
}
public static async Task <ISampleProvider> PlaySound(this MixingSampleProvider mixer, string path,
SampleControl sampleControl)
{
var sound = await CachedSound.GetOrCreateCacheSound(path).ConfigureAwait(false);
PlaySound(mixer, sound, sampleControl, out var rootSample);
return(rootSample);
}
public DrumPatternSampleProvider(DrumPattern pattern)
{
var kit = new DrumKit();
this.sequencer = new PatternSequencer(pattern, kit);
this.waveFormat = kit.WaveFormat;
mixer = new MixingSampleProvider(waveFormat);
}
public AudioPlaybackEngine(WaveOut waveOut, int sampleRate = 44100, int channelCount = 2)
{
_waveOut = waveOut;
_mixer = new MixingSampleProvider(WaveFormat.CreateIeeeFloatWaveFormat(sampleRate, channelCount));
_mixer.ReadFully = true;
_waveOut.Init(_mixer);
_waveOut.Play();
}
internal NAudioTrack(NAudioPlayer player, MixingSampleProvider outputMixer, AudioFileReader inputStream, string fileName)
{
this.player = player;
this.outputMixer = outputMixer;
this.inputStream = inputStream;
this.fileName = fileName;
sampleProvider = new SampleWrapper(inputStream.ToSampleProvider());
}
/// <summary>
/// Create a new instance of the playback engine.
/// </summary>
/// <param name="sampleRate">For all input sounds that will be played</param>
/// <param name="channelCount">Output channel count</param>
public AudioPlaybackEngine(int sampleRate = 44100, int channelCount = 2)
{
outputDevice = new WaveOutEvent();
mixer = new MixingSampleProvider(WaveFormat.CreateIeeeFloatWaveFormat(sampleRate, channelCount));
mixer.ReadFully = true;
outputDevice.Init(mixer);
outputDevice.Play();
}
public static async Task <ISampleProvider> PlaySound(this MixingSampleProvider mixer, string path,
float volume, float balance)
{
var sound = await CachedSound.GetOrCreateCacheSound(path).ConfigureAwait(false);
PlaySound(mixer, sound, volume, balance, out var rootSample);
return(rootSample);
}
