private async Task Start(string audioFile)
{
await Task.Run(() =>
{
try
{
lock (syncLock)
{
using (var audioFileReader = new AudioFileReader(audioFile))
{
audioFileReader.Volume = settingsService.Settings.Volume * 0.01f;
using (dso = new DirectSoundOut(settingsService.Settings.AudioDeviceId))
{
dso.Init(audioFileReader);
using (eventWaiter = new ManualResetEvent(false))
{
dso.Play();
dso.PlaybackStopped += (sender, args) => eventWaiter.Set();
eventWaiter.WaitOne();
}
}
}
}
}
catch (Exception)
{
}
});
}
private void play_Click(object sender, EventArgs e)
{
if (playlist.SelectedItems.Count>0)
{
id = fn.IndexOf(playlist.SelectedItem.ToString());
if (waveOutDevice.PlaybackState.ToString() != "Paused")
{
t.Stop();
stp();
audioFileReader = new AudioFileReader(fp[id]);
waveOutDevice = new WaveOut();
waveOutDevice.Init(audioFileReader);
trackbar.Maximum = (int)audioFileReader.TotalTime.TotalSeconds + 1;
//deb.Items.Add(audioFileReader.TotalTime.Seconds.ToString());
audioFileReader.Volume = (float)vol.Value / 100;
waveOutDevice.Play();
t.Start();
}
else
{
waveOutDevice.Play();
t.Start();
}
}
}
public static void Main(string[] argv)
{
ISampleProvider decoder = new AudioFileReader(FILE);
SpectrumProvider spectrumProvider = new SpectrumProvider(decoder, 1024, HOP_SIZE, true);
float[] spectrum = spectrumProvider.nextSpectrum();
float[] lastSpectrum = new float[spectrum.Length];
List<float> spectralFlux = new List<float>();
do
{
float flux = 0;
for(int i = 0; i < spectrum.Length; i++)
{
float @value = (spectrum[i] - lastSpectrum[i]);
flux += @value < 0 ? 0 : @value;
}
spectralFlux.Add(flux);
System.Array.Copy(spectrum, 0, lastSpectrum, 0, spectrum.Length);
} while((spectrum = spectrumProvider.nextSpectrum()) != null);
Plot plot = new Plot("Hopping Spectral Flux", 1024, 512);
plot.plot(spectralFlux, 1, Color.Red);
new PlaybackVisualizer(plot, HOP_SIZE, FILE);
}
public CachedSound(string audioFileName)
{
using (var audioFileReader = new AudioFileReader(audioFileName))
{
WaveFormat = audioFileReader.WaveFormat;
if (WaveFormat.SampleRate != 44100 || WaveFormat.Channels != 2)
{
using (var resampled = new ResamplerDmoStream(audioFileReader, WaveFormat.CreateIeeeFloatWaveFormat(44100, 2)))
{
var resampledSampleProvider = resampled.ToSampleProvider();
WaveFormat = resampledSampleProvider.WaveFormat;
var wholeFile = new List<float>((int) (resampled.Length));
var readBuffer = new float[resampled.WaveFormat.SampleRate * resampled.WaveFormat.Channels];
int samplesRead;
while ((samplesRead = resampledSampleProvider.Read(readBuffer, 0, readBuffer.Length)) > 0)
{
wholeFile.AddRange(readBuffer.Take(samplesRead));
}
AudioData = wholeFile.ToArray();
}
}
else
{
var wholeFile = new List<float>((int) (audioFileReader.Length / 4));
var readBuffer = new float[audioFileReader.WaveFormat.SampleRate * audioFileReader.WaveFormat.Channels];
int samplesRead;
while ((samplesRead = audioFileReader.Read(readBuffer, 0, readBuffer.Length)) > 0)
{
wholeFile.AddRange(readBuffer.Take(samplesRead));
}
AudioData = wholeFile.ToArray();
}
}
}
long _length; // Number of bytes left to read
/// <summary>
/// Constructor
/// </summary>
/// <param name="start">in seconds</param>
/// <param name="length">in seconds</param>
public ExtractWaveProvider(AudioFileReader reader, float start, float length) {
_reader = reader;
// Position to start
_reader.Position = _reader.WaveFormat.SecondsToBytes(start);
// Number of bytes to read
_length = _reader.WaveFormat.SecondsToBytes(length);
}
private ISampleProvider BuildWavePartAudio(UWavePart part, UProject project)
{
AudioFileReader stream;
try { stream = new AudioFileReader(part.FilePath); }
catch { return null; }
return new WaveToSampleProvider(stream);
}
public void CanDownsampleAnMp3File()
{
string testFile = @"D:\Audio\Music\Coldplay\Mylo Xyloto\03 - Paradise.mp3";
if (!File.Exists(testFile)) Assert.Ignore(testFile);
string outFile = @"d:\test22.wav";
using (var reader = new AudioFileReader(testFile))
{
// downsample to 22kHz
var resampler = new WdlResamplingSampleProvider(reader, 22050);
var wp = new SampleToWaveProvider(resampler);
using (var writer = new WaveFileWriter(outFile, wp.WaveFormat))
{
byte[] b = new byte[wp.WaveFormat.AverageBytesPerSecond];
while (true)
{
int read = wp.Read(b, 0, b.Length);
if (read > 0)
writer.Write(b, 0, read);
else
break;
}
}
//WaveFileWriter.CreateWaveFile(outFile, );
}
}
/*public static void ConvertWavStreamToMp3File(ref MemoryStream ms, string savetofilename)
* {
* //rewind to beginning of stream
* ms.Seek(0, SeekOrigin.Begin);
*
* using (var retMs = new MemoryStream())
* using (var rdr = new WaveFileReader(ms))
* using (var wtr = new LameMP3FileWriter(savetofilename, rdr.WaveFormat, LAMEPreset.VBR_90))
* {
* rdr.CopyTo(wtr);
* }*/
public void cnv(string sourceFilename, string targetFilename)
{
using (var reader = new NAudio.Wave.AudioFileReader(sourceFilename))
using (var writer = new NAudio.Lame.LameMP3FileWriter(targetFilename, reader.WaveFormat, NAudio.Lame.LAMEPreset.STANDARD))
{
reader.CopyTo(writer);
}
}
public static void ConvertToMP3(string inFile, string outFile, int bitRate = 64)
{
using (var reader = new AudioFileReader(inFile))
{
using (var writer = new LameMP3FileWriter(outFile, reader.WaveFormat, bitRate))
reader.CopyTo(writer);
}
}
protected virtual void Dispose(bool boolean)
{
if (boolean)
{
this.AudioReader.Dispose();
audio = null;
Path = null;
}
}
private void playnhac()
{
IWavePlayer waveOutDevice;
AudioFileReader audioFileReader;
waveOutDevice = new WaveOut();
audioFileReader = new AudioFileReader("animal.mp3");
waveOutDevice.Init(audioFileReader);
waveOutDevice.Play();
}
public static void PlaySound(NotificationSound sound)
{
IWavePlayer waveOutDevice;
AudioFileReader audioFileReader;
waveOutDevice = new WaveOut();
audioFileReader = new AudioFileReader("resources/sounds/message.mp3");
waveOutDevice.Init(audioFileReader);
waveOutDevice.Play();
}
// Constructor
public OnsetDetection(AudioFileReader pcm, int sampleWindow)
{
PCM = pcm;
SampleSize = sampleWindow;
spectrum = new float[sampleWindow / 2 + 1];
previousSpectrum = new float[spectrum.Length];
rectify = true;
fluxes = new List<float>();
}
private void buttonSelectFile_Click(object sender, EventArgs e)
{
Cleanup();
var ofd = new OpenFileDialog();
ofd.Filter = "Audio files|*.wav;*.mp3";
if (ofd.ShowDialog() == DialogResult.OK)
{
this.reader = new AudioFileReader(ofd.FileName);
}
}
public void PlaySong()
{
// Instantiate audio player
waveOutDevice = new WaveOut();
// Set MP3 to play
audioFileReader = new AudioFileReader(GetSong());
// Init device and call play
waveOutDevice.Init(audioFileReader);
waveOutDevice.Play();
}
public void LoadMp3File(string fileName)
{
if (aReader != null)
aReader.Dispose();
aReader = new AudioFileReader(fileName);
var sampleChannel = new SampleChannel(aReader, true);
volumeMeter = new MeteringSampleProvider(sampleChannel);
player.Init(volumeMeter);
}
/// <summary>
/// Begins the fade information.
/// </summary>
/// <param name="inputFile">The input file.</param>
/// <param name="outputFile">The output file.</param>
/// <param name="duration">The duration.</param>
/// <returns>
/// Path of changed file
/// </returns>
public static string BeginFadeIn(string inputFile, string outputFile, double duration)
{
using (var reader = new AudioFileReader(inputFile))
{
var provider = new EffectsProvider(reader);
provider.BeginFadeIn(duration * 1000);
WaveFileWriter.CreateWaveFile16(outputFile, provider);
}
return outputFile;
}
public override void Stage()
{
wavePlayer = new WaveOutEvent();
file = new AudioFileReader(_fileName);
file.Volume = 1;
wavePlayer.Init(file);
wavePlayer.PlaybackStopped += new EventHandler<StoppedEventArgs>(PlaybackEnded);
_currentStatus = Status.Staged;
}
private void BeginPlayback(string filename)
{
Debug.Assert(this.wavePlayer == null);
this.wavePlayer = CreateWavePlayer();
this.file = new AudioFileReader(filename);
this.file.Volume = volumeSlider1.Volume;
this.wavePlayer.Init(file);
this.wavePlayer.PlaybackStopped += wavePlayer_PlaybackStopped;
this.wavePlayer.Play();
EnableButtons(true);
timer1.Enabled = true; // timer for updating current time label
}
public void Play()
{
var path = Path.Combine(@"E:\Dropbox\Music\Imagine Dragons\Night Visions", "01 - Radioactive.mp3");
var wavePlayer = new WaveOut();
var file = new AudioFileReader(path);
file.Volume = 0.8f;
wavePlayer.Init(file);
////wavePlayer.PlaybackStopped += wavePlayer_PlaybackStopped;
wavePlayer.Play();
Thread.Sleep(10000);
}
private ISampleProvider CreateInputStream(string fileName)
{
this.audioFileReader = new AudioFileReader(fileName);
var sampleChannel = new SampleChannel(audioFileReader, true);
sampleChannel.PreVolumeMeter+= OnPreVolumeMeter;
this.setVolumeDelegate = (vol) => sampleChannel.Volume = vol;
var postVolumeMeter = new MeteringSampleProvider(sampleChannel);
postVolumeMeter.StreamVolume += OnPostVolumeMeter;
return postVolumeMeter;
}
public static float[] BuildPeaks(UWavePart part, System.ComponentModel.BackgroundWorker worker)
{
const double peaksRate = 4000;
System.Diagnostics.Stopwatch sw = new System.Diagnostics.Stopwatch();
sw.Start();
float[] peaks;
using (var stream = new AudioFileReader(part.FilePath))
{
int channels = part.Channels;
double peaksSamples = (int)((double)stream.Length / stream.WaveFormat.BlockAlign / stream.WaveFormat.SampleRate * peaksRate);
peaks = new float[(int)(peaksSamples + 1) * channels];
double blocksPerPixel = stream.Length / stream.WaveFormat.BlockAlign / peaksSamples;
var converted = new WaveToSampleProvider(stream);
float[] buffer = new float[4096];
int readed;
int readPos = 0;
int peaksPos = 0;
double bufferPos = 0;
float lmax = 0, lmin = 0, rmax = 0, rmin = 0;
while ((readed = converted.Read(buffer, 0, 4096)) != 0)
{
readPos += readed;
for (int i = 0; i < readed; i += channels)
{
lmax = Math.Max(lmax, buffer[i]);
lmin = Math.Min(lmin, buffer[i]);
if (channels > 1)
{
rmax = Math.Max(rmax, buffer[i + 1]);
rmin = Math.Min(rmin, buffer[i + 1]);
}
if (i > bufferPos)
{
lmax = -lmax; lmin = -lmin; rmax = -rmax; rmin = -rmin; // negate peaks to fipped waveform
peaks[peaksPos * channels] = lmax == 0 ? lmin : lmin == 0 ? lmax : (lmin + lmax) / 2;
peaks[peaksPos * channels + 1] = rmax == 0 ? rmin : rmin == 0 ? rmax : (rmin + rmax) / 2;
peaksPos++;
lmax = lmin = rmax = rmin = 0;
bufferPos += blocksPerPixel * stream.WaveFormat.Channels;
}
}
bufferPos -= readed;
worker.ReportProgress((int)((double)readPos * sizeof(float) * 100 / stream.Length));
}
}
sw.Stop();
System.Diagnostics.Debug.WriteLine("Build peaks {0} ms", sw.Elapsed.TotalMilliseconds);
return peaks;
}
// Method for creating float array from given wav file
public void wavToFloatArray(string path)
{
audio = new NAudio.Wave.AudioFileReader(path);
NAudio.Wave.WaveFormat waveFormat = audio.WaveFormat;
midLen += audio.Length;
algo.set_fs(waveFormat.SampleRate);
algo.defineStepAndLength();
originalWavSamples = new float[audio.Length / 4];
algo.setSamples(originalWavSamples.Length);
audio.Read(originalWavSamples, 0, originalWavSamples.Length);
audio.Close();
}
public string LoadSong()
{
OpenFileDialog ofd = new OpenFileDialog();
ofd.Filter = "WAV|*.wav|MP3|*.mp3";
if (ofd.ShowDialog() == true)
{
FilePath = ofd.FileName;
audioFileReader = new AudioFileReader(FilePath);
return FilePath;
}
else { return String.Empty;}
}
private void BeginPlayback(string filename)
{
Debug.Assert(this.wavePlayer == null);
this.wavePlayer = new WaveOutEvent();
this.file = new AudioFileReader(filename);
this.fadeInOut = new FadeInOutSampleProvider(file);
this.file.Volume = volumeSlider1.Volume;
this.wavePlayer.Init(new SampleToWaveProvider(fadeInOut));
this.wavePlayer.PlaybackStopped += wavePlayer_PlaybackStopped;
this.wavePlayer.Play();
EnableButtons(true);
timer1.Enabled = true; // timer for updating current time label
}
private void CleanUp()
{
if (this.file != null)
{
this.file.Dispose();
this.file = null;
}
if (this.wavePlayer != null)
{
this.wavePlayer.Dispose();
this.wavePlayer = null;
}
}
private void Cleanup()
{
if (asioOut != null)
{
asioOut.Dispose();
asioOut = null;
}
if (reader != null)
{
reader.Dispose();
reader = null;
}
}
/// <summary>
/// Disposes of all resources contained in BGMusic. Call this method at the
/// end of the Game's life.
/// </summary>
public static void dispose()
{
if (file != null)
{
file.Dispose();
file = null;
}
if (wavePlayer != null)
{
wavePlayer.Dispose();
wavePlayer = null;
}
fadeInOut = null;
}
public IWavePlayer PlayKillStreak(string sfxName, string ext = "wav")
{
KillStreakDevice = KillStreakDevice ?? new WaveOutEvent();
var path = SFXPath + sfxName + "." + ext;
Wait(250);
AudioFileReader audioFileReader = new AudioFileReader(path);
audioFileReader.Volume = 0.6f * Volume;
KillStreakDevice.Stop();
KillStreakDevice.Init(audioFileReader);
KillStreakDevice.Play();
return KillStreakDevice;
}
public static void Main(string[] argv)
{
AudioDevice device = new AudioDevice();
ISampleProvider reader = new AudioFileReader("samples/sample.wav");
float[] samples = new float[1024];
while(reader.Read(samples, 0, samples.Length) > 0)
{
device.WriteSamples(samples);
}
System.Threading.Thread.Sleep(10000);
device.Dispose();
}
public AudioDevice(string fileName) : this() {
ISampleProvider sampleProvider = new AudioFileReader(fileName);
this.fileWaveStream = (WaveStream) sampleProvider;
// create sample channel
SampleToWaveProvider waveProvider = new SampleToWaveProvider(sampleProvider);
this.sampleChannel = new SampleChannel(waveProvider, true);
this.sampleChannel.PreVolumeMeter += OnPreVolumeMeter;
// play
//IWavePlayer waveOut = new WaveOut();
//waveOut.Init(waveProvider);
//waveOut.Play();
}
// Plays audio track
public void Play(string FileName)
{
Console.Out.WriteLine("FileName is: " + FileName);
reader = new NAudio.Wave.AudioFileReader(FileName);
output = new NAudio.Wave.DirectSoundOut();
output.Init(new NAudio.Wave.WaveChannel32(reader));
if (firstTime == true)
{
SetVolume((float).5);
firstTime = false;
}
output.Play();
Program.MainForm.StartTimer();
}
// Stops music playback
public void Stop()
{
if (output != null)
{
if (output.PlaybackState == NAudio.Wave.PlaybackState.Playing)
{
output.Stop();
}
}
if (reader != null)
{
reader.Dispose();
reader = null;
}
}
private static void WmaToMp3(XConvertJob param)
{
var targetFilename = string.IsNullOrEmpty(param.AlternativeOutputPath) ? param.SourceFileName.GenerateOutPutPath(XFileType.Mp3) :
param.AlternativeOutputPath;
if (param.SourceData != null)
{
File.WriteAllBytes(param.SourceFileName, param.SourceData);
}
using (var reader = new NAudio.Wave.AudioFileReader(param.SourceFileName))
using (var writer = new NAudio.Lame.LameMP3FileWriter(targetFilename, reader.WaveFormat, NAudio.Lame.LAMEPreset.STANDARD))
{
reader.CopyTo(writer);
}
param.ResulFileName = targetFilename;
}
protected virtual void LoadAudio()
{
if ((Path.EndsWith(".mp3", StringComparison.OrdinalIgnoreCase)) || (Path.EndsWith(".wav", StringComparison.OrdinalIgnoreCase)))
{
if (audio != null)
{
audio.Dispose();
}
audio = new NAudio.Wave.AudioFileReader(Path);
output.Init(audio);
}
else
{
throw new FileTypeException("File type must be .mp3 or .wav");
}
}
private void treeView1_AfterSelect(object sender, TreeViewEventArgs e)
{
AudioFileReader wave = null;
WaveOut outputSound = null;
string x = "";
if (treeView1.SelectedNode.Parent != null)
{
if (treeView1.SelectedNode.Parent.Index == 1)
{
SampleDef sd = seq.samples[treeView1.SelectedNode.Index];
propertyGrid1.SelectedObject = sd;
x = seq.path + "\\" + seq.name + "\\" + sd.Tag + (Howl.sampledict.ContainsKey(sd.SampleID) ? "_" + Howl.sampledict[sd.SampleID] : "") + ".wav";
}
if (treeView1.SelectedNode.Parent.Index == 0)
{
SampleDefReverb sd = seq.samplesReverb[treeView1.SelectedNode.Index];
propertyGrid1.SelectedObject = sd;
x = seq.path + "\\" + seq.name + "\\" + sd.Tag + (Howl.sampledict.ContainsKey(sd.SampleID) ? "_" + Howl.sampledict[sd.SampleID] : "") + ".wav";
}
if (File.Exists(x))
{
try
{
wave = new NAudio.Wave.AudioFileReader(x);
outputSound = new WaveOut();
outputSound.Init(wave);
outputSound.Play();
}
catch (Exception ex)
{
textBox1.Text = ex.Message;
}
}
}
else
{
propertyGrid1.SelectedObject = null;
}
}
public List <float> ReadFromMP3()
{
string filePath;
if (choice == 0)
{
filePath = ChooseFile();
}
else
{
filePath = @"out.mp3";
}
List <float> allSamples = new List <float>();
float[] samples = new float[256];
AudioFileReader sampleProvider = new NAudio.Wave.AudioFileReader(filePath);
int channels = sampleProvider.WaveFormat.Channels;
while (sampleProvider.Read(samples, 0, samples.Length) > 0)
{
if (channels == 2)
{
for (int i = 0; i < samples.Length; i = i + 2)
{
allSamples.Add((samples[i] + samples[i + 1]) / 2);
}
}
else
{
for (int i = 0; i < samples.Length; i++)
{
allSamples.Add(samples[i]);
}
}
}
return(allSamples);
}
static void Main(string[] args)
{
string mp3FilesDir = Directory.GetCurrentDirectory();
if (args.Length > 0)
{
mp3FilesDir = args.First();
}
var waveOutDevice = new WaveOut();
var idToFile = Directory.GetFiles(mp3FilesDir, "*.mp3", SearchOption.AllDirectories).ToDictionary(k => int.Parse(Regex.Match(Path.GetFileName(k), @"^\d+").Value));
while (true)
{
Console.WriteLine("Wprowadz numer nagrania");
var trackId = int.Parse(Console.ReadLine());
using (var audioFileReader = new AudioFileReader(idToFile[trackId]))
{
waveOutDevice.Init(audioFileReader);
waveOutDevice.Play();
Console.ReadLine();
}
}
}
public static void Main(string[] argv)
{
ISampleProvider decoder = new AudioFileReader(FILE);
FFT fft = new FFT(1024, 44100);
fft.Window(FFT.HAMMING);
float[] samples = new float[1024];
float[] spectrum = new float[1024 / 2 + 1];
float[] lastSpectrum = new float[1024 / 2 + 1];
List<float> spectralFlux = new List<float>();
while(decoder.Read(samples, 0, samples.Length) > 0)
{
fft.Forward(samples);
System.Array.Copy(spectrum, 0, lastSpectrum, 0, spectrum.Length);
System.Array.Copy(fft.GetSpectrum(), 0, spectrum, 0, spectrum.Length);
float flux = 0;
for(int i = 0; i < spectrum.Length; i++)
{
float @value = (spectrum[i] - lastSpectrum[i]);
flux += @value < 0 ? 0 : @value;
}
spectralFlux.Add(flux);
}
Plot plot = new Plot("Hamming Spectral Flux", 1024, 512);
plot.plot(spectralFlux, 1, Color.Red);
new PlaybackVisualizer(plot, 1024, FILE);
}