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WASAPI loopback capture also supports sample rate conversion

process-audio-capture
Mark Heath 3 years ago
parent
80dbfee267
commit
16d543236d
4 changed files with 100 additions and 152 deletions
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  1. 11
      NAudio.Wasapi/WasapiLoopbackCapture.cs
  2. 161
      NAudioDemo/RecordingDemo/RecordingPanel.Designer.cs
  3. 20
      NAudioDemo/RecordingDemo/RecordingPanel.cs
  4. 60
      NAudioDemo/RecordingDemo/RecordingPanel.resx

11
NAudio.Wasapi/WasapiLoopbackCapture.cs
View File

@ -37,21 +37,12 @@ namespace NAudio.Wave
return devices.GetDefaultAudioEndpoint(DataFlow.Render, Role.Multimedia);
}
/// <summary>
/// Capturing wave format
/// </summary>
public override WaveFormat WaveFormat
{
get { return base.WaveFormat; }
set { throw new InvalidOperationException("WaveFormat cannot be set for WASAPI Loopback Capture"); }
}
/// <summary>
/// Specify loopback
/// </summary>
protected override AudioClientStreamFlags GetAudioClientStreamFlags()
{
return AudioClientStreamFlags.Loopback;
return AudioClientStreamFlags.Loopback | base.GetAudioClientStreamFlags();
}
}
}

161
NAudioDemo/RecordingDemo/RecordingPanel.Designer.cs
View File

@ -33,7 +33,6 @@
this.label1 = new System.Windows.Forms.Label();
this.buttonStopRecording = new System.Windows.Forms.Button();
this.progressBar1 = new System.Windows.Forms.ProgressBar();
this.label2 = new System.Windows.Forms.Label();
this.listBoxRecordings = new System.Windows.Forms.ListBox();
this.buttonPlay = new System.Windows.Forms.Button();
this.buttonDelete = new System.Windows.Forms.Button();
@ -48,15 +47,17 @@
this.radioButtonWasapiLoopback = new System.Windows.Forms.RadioButton();
this.radioButtonWasapi = new System.Windows.Forms.RadioButton();
this.radioButtonWaveIn = new System.Windows.Forms.RadioButton();
this.label2 = new System.Windows.Forms.Label();
this.label3 = new System.Windows.Forms.Label();
this.groupBoxRecordingApi.SuspendLayout();
this.SuspendLayout();
//
// buttonStartRecording
//
this.buttonStartRecording.Location = new System.Drawing.Point(419, 118);
this.buttonStartRecording.Margin = new System.Windows.Forms.Padding(4, 4, 4, 4);
this.buttonStartRecording.Location = new System.Drawing.Point(1056, 307);
this.buttonStartRecording.Margin = new System.Windows.Forms.Padding(8, 10, 8, 10);
this.buttonStartRecording.Name = "buttonStartRecording";
this.buttonStartRecording.Size = new System.Drawing.Size(140, 28);
this.buttonStartRecording.Size = new System.Drawing.Size(298, 72);
this.buttonStartRecording.TabIndex = 0;
this.buttonStartRecording.Text = "Start Recording";
this.buttonStartRecording.UseVisualStyleBackColor = true;
@ -66,19 +67,19 @@
//
this.label1.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Left)
| System.Windows.Forms.AnchorStyles.Right)));
this.label1.Location = new System.Drawing.Point(16, 20);
this.label1.Margin = new System.Windows.Forms.Padding(4, 0, 4, 0);
this.label1.Location = new System.Drawing.Point(34, 51);
this.label1.Margin = new System.Windows.Forms.Padding(8, 0, 8, 0);
this.label1.Name = "label1";
this.label1.Size = new System.Drawing.Size(787, 54);
this.label1.Size = new System.Drawing.Size(1863, 138);
this.label1.TabIndex = 1;
this.label1.Text = resources.GetString("label1.Text");
//
// buttonStopRecording
//
this.buttonStopRecording.Location = new System.Drawing.Point(581, 118);
this.buttonStopRecording.Margin = new System.Windows.Forms.Padding(4, 4, 4, 4);
this.buttonStopRecording.Location = new System.Drawing.Point(1401, 307);
this.buttonStopRecording.Margin = new System.Windows.Forms.Padding(8, 10, 8, 10);
this.buttonStopRecording.Name = "buttonStopRecording";
this.buttonStopRecording.Size = new System.Drawing.Size(140, 28);
this.buttonStopRecording.Size = new System.Drawing.Size(298, 72);
this.buttonStopRecording.TabIndex = 0;
this.buttonStopRecording.Text = "Stop Recording";
this.buttonStopRecording.UseVisualStyleBackColor = true;
@ -86,42 +87,32 @@
//
// progressBar1
//
this.progressBar1.Location = new System.Drawing.Point(419, 191);
this.progressBar1.Margin = new System.Windows.Forms.Padding(4, 4, 4, 4);
this.progressBar1.Location = new System.Drawing.Point(1056, 494);
this.progressBar1.Margin = new System.Windows.Forms.Padding(8, 10, 8, 10);
this.progressBar1.Maximum = 30;
this.progressBar1.Name = "progressBar1";
this.progressBar1.Size = new System.Drawing.Size(343, 28);
this.progressBar1.Size = new System.Drawing.Size(729, 72);
this.progressBar1.TabIndex = 4;
//
// label2
//
this.label2.AutoSize = true;
this.label2.Location = new System.Drawing.Point(415, 167);
this.label2.Margin = new System.Windows.Forms.Padding(4, 0, 4, 0);
this.label2.Name = "label2";
this.label2.Size = new System.Drawing.Size(131, 16);
this.label2.TabIndex = 5;
this.label2.Text = "Recording Progress:";
//
// listBoxRecordings
//
this.listBoxRecordings.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left)
| System.Windows.Forms.AnchorStyles.Right)));
this.listBoxRecordings.FormattingEnabled = true;
this.listBoxRecordings.ItemHeight = 16;
this.listBoxRecordings.Location = new System.Drawing.Point(20, 302);
this.listBoxRecordings.Margin = new System.Windows.Forms.Padding(4, 4, 4, 4);
this.listBoxRecordings.ItemHeight = 41;
this.listBoxRecordings.Location = new System.Drawing.Point(42, 774);
this.listBoxRecordings.Margin = new System.Windows.Forms.Padding(8, 10, 8, 10);
this.listBoxRecordings.Name = "listBoxRecordings";
this.listBoxRecordings.Size = new System.Drawing.Size(673, 132);
this.listBoxRecordings.Size = new System.Drawing.Size(1617, 332);
this.listBoxRecordings.TabIndex = 8;
//
// buttonPlay
//
this.buttonPlay.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Right)));
this.buttonPlay.Location = new System.Drawing.Point(703, 335);
this.buttonPlay.Margin = new System.Windows.Forms.Padding(4, 4, 4, 4);
this.buttonPlay.Location = new System.Drawing.Point(1685, 858);
this.buttonPlay.Margin = new System.Windows.Forms.Padding(8, 10, 8, 10);
this.buttonPlay.Name = "buttonPlay";
this.buttonPlay.Size = new System.Drawing.Size(100, 28);
this.buttonPlay.Size = new System.Drawing.Size(212, 72);
this.buttonPlay.TabIndex = 9;
this.buttonPlay.Text = "Play";
this.buttonPlay.UseVisualStyleBackColor = true;
@ -130,10 +121,10 @@
// buttonDelete
//
this.buttonDelete.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Right)));
this.buttonDelete.Location = new System.Drawing.Point(703, 370);
this.buttonDelete.Margin = new System.Windows.Forms.Padding(4, 4, 4, 4);
this.buttonDelete.Location = new System.Drawing.Point(1685, 948);
this.buttonDelete.Margin = new System.Windows.Forms.Padding(8, 10, 8, 10);
this.buttonDelete.Name = "buttonDelete";
this.buttonDelete.Size = new System.Drawing.Size(100, 28);
this.buttonDelete.Size = new System.Drawing.Size(212, 72);
this.buttonDelete.TabIndex = 10;
this.buttonDelete.Text = "Delete";
this.buttonDelete.UseVisualStyleBackColor = true;
@ -142,10 +133,10 @@
// buttonOpenFolder
//
this.buttonOpenFolder.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Right)));
this.buttonOpenFolder.Location = new System.Drawing.Point(703, 406);
this.buttonOpenFolder.Margin = new System.Windows.Forms.Padding(4, 4, 4, 4);
this.buttonOpenFolder.Location = new System.Drawing.Point(1685, 1040);
this.buttonOpenFolder.Margin = new System.Windows.Forms.Padding(8, 10, 8, 10);
this.buttonOpenFolder.Name = "buttonOpenFolder";
this.buttonOpenFolder.Size = new System.Drawing.Size(100, 28);
this.buttonOpenFolder.Size = new System.Drawing.Size(212, 72);
this.buttonOpenFolder.TabIndex = 10;
this.buttonOpenFolder.Text = "Open Folder";
this.buttonOpenFolder.UseVisualStyleBackColor = true;
@ -153,6 +144,7 @@
//
// groupBoxRecordingApi
//
this.groupBoxRecordingApi.Controls.Add(this.label3);
this.groupBoxRecordingApi.Controls.Add(this.comboWasapiLoopbackDevices);
this.groupBoxRecordingApi.Controls.Add(this.checkBoxEventCallback);
this.groupBoxRecordingApi.Controls.Add(this.comboBoxChannels);
@ -162,11 +154,11 @@
this.groupBoxRecordingApi.Controls.Add(this.radioButtonWasapiLoopback);
this.groupBoxRecordingApi.Controls.Add(this.radioButtonWasapi);
this.groupBoxRecordingApi.Controls.Add(this.radioButtonWaveIn);
this.groupBoxRecordingApi.Location = new System.Drawing.Point(20, 81);
this.groupBoxRecordingApi.Margin = new System.Windows.Forms.Padding(4, 4, 4, 4);
this.groupBoxRecordingApi.Location = new System.Drawing.Point(42, 208);
this.groupBoxRecordingApi.Margin = new System.Windows.Forms.Padding(8, 10, 8, 10);
this.groupBoxRecordingApi.Name = "groupBoxRecordingApi";
this.groupBoxRecordingApi.Padding = new System.Windows.Forms.Padding(4, 4, 4, 4);
this.groupBoxRecordingApi.Size = new System.Drawing.Size(359, 213);
this.groupBoxRecordingApi.Padding = new System.Windows.Forms.Padding(8, 10, 8, 10);
this.groupBoxRecordingApi.Size = new System.Drawing.Size(966, 546);
this.groupBoxRecordingApi.TabIndex = 11;
this.groupBoxRecordingApi.TabStop = false;
this.groupBoxRecordingApi.Text = "Recording API";
@ -175,19 +167,21 @@
//
this.comboWasapiLoopbackDevices.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;
this.comboWasapiLoopbackDevices.FormattingEnabled = true;
this.comboWasapiLoopbackDevices.Location = new System.Drawing.Point(188, 178);
this.comboWasapiLoopbackDevices.Margin = new System.Windows.Forms.Padding(4, 4, 4, 4);
this.comboWasapiLoopbackDevices.Location = new System.Drawing.Point(399, 249);
this.comboWasapiLoopbackDevices.Margin = new System.Windows.Forms.Padding(8, 10, 8, 10);
this.comboWasapiLoopbackDevices.Name = "comboWasapiLoopbackDevices";
this.comboWasapiLoopbackDevices.Size = new System.Drawing.Size(160, 24);
this.comboWasapiLoopbackDevices.Size = new System.Drawing.Size(551, 49);
this.comboWasapiLoopbackDevices.TabIndex = 14;
//
// checkBoxEventCallback
//
this.checkBoxEventCallback.AutoSize = true;
this.checkBoxEventCallback.Location = new System.Drawing.Point(188, 50);
this.checkBoxEventCallback.Margin = new System.Windows.Forms.Padding(4, 4, 4, 4);
this.checkBoxEventCallback.Checked = true;
this.checkBoxEventCallback.CheckState = System.Windows.Forms.CheckState.Checked;
this.checkBoxEventCallback.Location = new System.Drawing.Point(400, 99);
this.checkBoxEventCallback.Margin = new System.Windows.Forms.Padding(8, 10, 8, 10);
this.checkBoxEventCallback.Name = "checkBoxEventCallback";
this.checkBoxEventCallback.Size = new System.Drawing.Size(126, 20);
this.checkBoxEventCallback.Size = new System.Drawing.Size(259, 45);
this.checkBoxEventCallback.TabIndex = 13;
this.checkBoxEventCallback.Text = "Event Callbacks";
this.checkBoxEventCallback.UseVisualStyleBackColor = true;
@ -196,49 +190,49 @@
//
this.comboBoxChannels.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;
this.comboBoxChannels.FormattingEnabled = true;
this.comboBoxChannels.Location = new System.Drawing.Point(188, 82);
this.comboBoxChannels.Margin = new System.Windows.Forms.Padding(4, 4, 4, 4);
this.comboBoxChannels.Location = new System.Drawing.Point(386, 465);
this.comboBoxChannels.Margin = new System.Windows.Forms.Padding(8, 10, 8, 10);
this.comboBoxChannels.Name = "comboBoxChannels";
this.comboBoxChannels.Size = new System.Drawing.Size(160, 24);
this.comboBoxChannels.Size = new System.Drawing.Size(336, 49);
this.comboBoxChannels.TabIndex = 12;
//
// comboBoxSampleRate
//
this.comboBoxSampleRate.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;
this.comboBoxSampleRate.FormattingEnabled = true;
this.comboBoxSampleRate.Location = new System.Drawing.Point(20, 82);
this.comboBoxSampleRate.Margin = new System.Windows.Forms.Padding(4, 4, 4, 4);
this.comboBoxSampleRate.Location = new System.Drawing.Point(34, 465);
this.comboBoxSampleRate.Margin = new System.Windows.Forms.Padding(8, 10, 8, 10);
this.comboBoxSampleRate.Name = "comboBoxSampleRate";
this.comboBoxSampleRate.Size = new System.Drawing.Size(160, 24);
this.comboBoxSampleRate.Size = new System.Drawing.Size(336, 49);
this.comboBoxSampleRate.TabIndex = 12;
//
// comboWaveInDevice
//
this.comboWaveInDevice.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;
this.comboWaveInDevice.FormattingEnabled = true;
this.comboWaveInDevice.Location = new System.Drawing.Point(188, 16);
this.comboWaveInDevice.Margin = new System.Windows.Forms.Padding(4, 4, 4, 4);
this.comboWaveInDevice.Location = new System.Drawing.Point(400, 41);
this.comboWaveInDevice.Margin = new System.Windows.Forms.Padding(8, 10, 8, 10);
this.comboWaveInDevice.Name = "comboWaveInDevice";
this.comboWaveInDevice.Size = new System.Drawing.Size(160, 24);
this.comboWaveInDevice.Size = new System.Drawing.Size(550, 49);
this.comboWaveInDevice.TabIndex = 12;
//
// comboWasapiDevices
//
this.comboWasapiDevices.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;
this.comboWasapiDevices.FormattingEnabled = true;
this.comboWasapiDevices.Location = new System.Drawing.Point(188, 143);
this.comboWasapiDevices.Margin = new System.Windows.Forms.Padding(4, 4, 4, 4);
this.comboWasapiDevices.Location = new System.Drawing.Point(400, 172);
this.comboWasapiDevices.Margin = new System.Windows.Forms.Padding(8, 10, 8, 10);
this.comboWasapiDevices.Name = "comboWasapiDevices";
this.comboWasapiDevices.Size = new System.Drawing.Size(160, 24);
this.comboWasapiDevices.Size = new System.Drawing.Size(551, 49);
this.comboWasapiDevices.TabIndex = 12;
//
// radioButtonWasapiLoopback
//
this.radioButtonWasapiLoopback.AutoSize = true;
this.radioButtonWasapiLoopback.Location = new System.Drawing.Point(8, 176);
this.radioButtonWasapiLoopback.Margin = new System.Windows.Forms.Padding(4, 4, 4, 4);
this.radioButtonWasapiLoopback.Location = new System.Drawing.Point(16, 244);
this.radioButtonWasapiLoopback.Margin = new System.Windows.Forms.Padding(8, 10, 8, 10);
this.radioButtonWasapiLoopback.Name = "radioButtonWasapiLoopback";
this.radioButtonWasapiLoopback.Size = new System.Drawing.Size(144, 20);
this.radioButtonWasapiLoopback.Size = new System.Drawing.Size(299, 45);
this.radioButtonWasapiLoopback.TabIndex = 8;
this.radioButtonWasapiLoopback.Text = "WASAPI Loopback";
this.radioButtonWasapiLoopback.UseVisualStyleBackColor = true;
@ -246,30 +240,50 @@
// radioButtonWasapi
//
this.radioButtonWasapi.AutoSize = true;
this.radioButtonWasapi.Location = new System.Drawing.Point(8, 148);
this.radioButtonWasapi.Margin = new System.Windows.Forms.Padding(4, 4, 4, 4);
this.radioButtonWasapi.Checked = true;
this.radioButtonWasapi.Location = new System.Drawing.Point(16, 172);
this.radioButtonWasapi.Margin = new System.Windows.Forms.Padding(8, 10, 8, 10);
this.radioButtonWasapi.Name = "radioButtonWasapi";
this.radioButtonWasapi.Size = new System.Drawing.Size(80, 20);
this.radioButtonWasapi.Size = new System.Drawing.Size(161, 45);
this.radioButtonWasapi.TabIndex = 9;
this.radioButtonWasapi.TabStop = true;
this.radioButtonWasapi.Text = "WASAPI";
this.radioButtonWasapi.UseVisualStyleBackColor = true;
//
// radioButtonWaveIn
//
this.radioButtonWaveIn.AutoSize = true;
this.radioButtonWaveIn.Checked = true;
this.radioButtonWaveIn.Location = new System.Drawing.Point(8, 21);
this.radioButtonWaveIn.Margin = new System.Windows.Forms.Padding(4, 4, 4, 4);
this.radioButtonWaveIn.Location = new System.Drawing.Point(17, 54);
this.radioButtonWaveIn.Margin = new System.Windows.Forms.Padding(8, 10, 8, 10);
this.radioButtonWaveIn.Name = "radioButtonWaveIn";
this.radioButtonWaveIn.Size = new System.Drawing.Size(70, 20);
this.radioButtonWaveIn.Size = new System.Drawing.Size(147, 45);
this.radioButtonWaveIn.TabIndex = 11;
this.radioButtonWaveIn.TabStop = true;
this.radioButtonWaveIn.Text = "waveIn";
this.radioButtonWaveIn.UseVisualStyleBackColor = true;
//
// label2
//
this.label2.AutoSize = true;
this.label2.Location = new System.Drawing.Point(1048, 433);
this.label2.Margin = new System.Windows.Forms.Padding(8, 0, 8, 0);
this.label2.Name = "label2";
this.label2.Size = new System.Drawing.Size(283, 41);
this.label2.TabIndex = 5;
this.label2.Text = "Recording Progress:";
//
// label3
//
this.label3.AutoSize = true;
this.label3.Location = new System.Drawing.Point(34, 392);
this.label3.Margin = new System.Windows.Forms.Padding(8, 0, 8, 0);
this.label3.Name = "label3";
this.label3.Size = new System.Drawing.Size(225, 41);
this.label3.TabIndex = 15;
this.label3.Text = "Capture Format";
//
// RecordingPanel
//
this.AutoScaleDimensions = new System.Drawing.SizeF(8F, 16F);
this.AutoScaleDimensions = new System.Drawing.SizeF(17F, 41F);
this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
this.Controls.Add(this.groupBoxRecordingApi);
this.Controls.Add(this.buttonOpenFolder);
@ -281,9 +295,9 @@
this.Controls.Add(this.label1);
this.Controls.Add(this.buttonStopRecording);
this.Controls.Add(this.buttonStartRecording);
this.Margin = new System.Windows.Forms.Padding(4, 4, 4, 4);
this.Margin = new System.Windows.Forms.Padding(8, 10, 8, 10);
this.Name = "RecordingPanel";
this.Size = new System.Drawing.Size(819, 457);
this.Size = new System.Drawing.Size(1931, 1171);
this.groupBoxRecordingApi.ResumeLayout(false);
this.groupBoxRecordingApi.PerformLayout();
this.ResumeLayout(false);
@ -297,7 +311,6 @@
private System.Windows.Forms.Label label1;
private System.Windows.Forms.Button buttonStopRecording;
private System.Windows.Forms.ProgressBar progressBar1;
private System.Windows.Forms.Label label2;
private System.Windows.Forms.ListBox listBoxRecordings;
private System.Windows.Forms.Button buttonPlay;
private System.Windows.Forms.Button buttonDelete;
@ -312,5 +325,7 @@
private System.Windows.Forms.ComboBox comboBoxChannels;
private System.Windows.Forms.ComboBox comboBoxSampleRate;
private System.Windows.Forms.ComboBox comboWasapiLoopbackDevices;
private System.Windows.Forms.Label label2;
private System.Windows.Forms.Label label3;
}
}

20
NAudioDemo/RecordingDemo/RecordingPanel.cs
View File

@ -32,7 +32,7 @@ namespace NAudioDemo.RecordingDemo
}
LoadWaveInDevicesCombo();
comboBoxSampleRate.DataSource = new[] {8000, 16000, 22050, 32000, 44100, 48000};
comboBoxSampleRate.SelectedIndex = 0;
comboBoxSampleRate.SelectedIndex = 3;
comboBoxChannels.DataSource = new[] { "Mono", "Stereo" };
comboBoxChannels.SelectedIndex = 0;
outputFolder = Path.Combine(Path.GetTempPath(), "NAudioDemo");
@ -44,6 +44,7 @@ namespace NAudioDemo.RecordingDemo
radioButtonWasapiLoopback.CheckedChanged += (s, a) => Cleanup();
checkBoxEventCallback.CheckedChanged += (s, a) => Cleanup();
comboWaveInDevice.SelectedIndexChanged += (s, a) => Cleanup();
comboBoxSampleRate.SelectedIndexChanged += (s, a) => Cleanup();
comboBoxChannels.SelectedIndexChanged += (s, a) => Cleanup();
comboWasapiDevices.SelectedIndexChanged += (s, a) => Cleanup();
comboWasapiLoopbackDevices.SelectedIndexChanged += (s, a) => Cleanup();
@ -79,7 +80,9 @@ namespace NAudioDemo.RecordingDemo
private void OnButtonStartRecordingClick(object sender, EventArgs e)
{
if (radioButtonWaveIn.Checked)
{
Cleanup(); // WaveIn is still unreliable in some circumstances to being reused
}
if (captureDevice == null)
{
@ -118,25 +121,22 @@ namespace NAudioDemo.RecordingDemo
{
newWaveIn = new WaveIn() { DeviceNumber = deviceNumber };
}
var sampleRate = (int)comboBoxSampleRate.SelectedItem;
var channels = comboBoxChannels.SelectedIndex + 1;
newWaveIn.WaveFormat = new WaveFormat(sampleRate, channels);
}
else if (radioButtonWasapi.Checked)
{
var device = (MMDevice) comboWasapiDevices.SelectedItem;
newWaveIn = new WasapiCapture(device);
// WASAPI with Sample Rate conversion!
var sampleRate = (int)comboBoxSampleRate.SelectedItem;
var channels = comboBoxChannels.SelectedIndex + 1;
newWaveIn.WaveFormat = new WaveFormat(sampleRate, channels);
}
else
{
// can't set WaveFormat as WASAPI doesn't support SRC
var device = (MMDevice)comboWasapiLoopbackDevices.SelectedItem;
newWaveIn = new WasapiLoopbackCapture(device);
}
// Both WASAPI and WaveIn support Sample Rate conversion!
var sampleRate = (int)comboBoxSampleRate.SelectedItem;
var channels = comboBoxChannels.SelectedIndex + 1;
newWaveIn.WaveFormat = new WaveFormat(sampleRate, channels);
newWaveIn.DataAvailable += OnDataAvailable;
newWaveIn.RecordingStopped += OnRecordingStopped;
return newWaveIn;
@ -167,6 +167,8 @@ namespace NAudioDemo.RecordingDemo
{
if (captureDevice != null)
{
captureDevice.DataAvailable -= OnDataAvailable;
captureDevice.RecordingStopped -= OnRecordingStopped;
captureDevice.Dispose();
captureDevice = null;
}

60
NAudioDemo/RecordingDemo/RecordingPanel.resx
View File

@ -1,64 +1,4 @@
<?xml version="1.0" encoding="utf-8"?>
<root>
<!--
Microsoft ResX Schema
Version 2.0
The primary goals of this format is to allow a simple XML format
that is mostly human readable. The generation and parsing of the
various data types are done through the TypeConverter classes
associated with the data types.
Example:
... ado.net/XML headers & schema ...
<resheader name="resmimetype">text/microsoft-resx</resheader>
<resheader name="version">2.0</resheader>
<resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
<resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
<data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
<data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
<data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
<value>[base64 mime encoded serialized .NET Framework object]</value>
</data>
<data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
<value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
<comment>This is a comment</comment>
</data>
There are any number of "resheader" rows that contain simple
name/value pairs.
Each data row contains a name, and value. The row also contains a
type or mimetype. Type corresponds to a .NET class that support
text/value conversion through the TypeConverter architecture.
Classes that don't support this are serialized and stored with the
mimetype set.
The mimetype is used for serialized objects, and tells the
ResXResourceReader how to depersist the object. This is currently not
extensible. For a given mimetype the value must be set accordingly:
Note - application/x-microsoft.net.object.binary.base64 is the format
that the ResXResourceWriter will generate, however the reader can
read any of the formats listed below.
mimetype: application/x-microsoft.net.object.binary.base64
value : The object must be serialized with
: System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
: and then encoded with base64 encoding.
mimetype: application/x-microsoft.net.object.soap.base64
value : The object must be serialized with
: System.Runtime.Serialization.Formatters.Soap.SoapFormatter
: and then encoded with base64 encoding.
mimetype: application/x-microsoft.net.object.bytearray.base64
value : The object must be serialized into a byte array
: using a System.ComponentModel.TypeConverter
: and then encoded with base64 encoding.
-->
<xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
<xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
<xsd:element name="root" msdata:IsDataSet="true">

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