public static async void Play(SoundEffect effect)
{
var settings = new AudioGraphSettings(AudioRenderCategory.SoundEffects);
settings.QuantumSizeSelectionMode = QuantumSizeSelectionMode.LowestLatency;
var result = await AudioGraph.CreateAsync(settings);
if (result.Status != AudioGraphCreationStatus.Success)
{
return;
}
var file = await StorageFile.GetFileFromApplicationUriAsync(new Uri("ms-appx:///Assets/Audio/sent.mp3"));
var fileInputNodeResult = await result.Graph.CreateFileInputNodeAsync(file);
if (fileInputNodeResult.Status != AudioFileNodeCreationStatus.Success)
{
return;
}
var deviceOutputNodeResult = await result.Graph.CreateDeviceOutputNodeAsync();
if (deviceOutputNodeResult.Status != AudioDeviceNodeCreationStatus.Success)
{
return;
}
fileInputNodeResult.FileInputNode
.AddOutgoingConnection(deviceOutputNodeResult.DeviceOutputNode);
result.Graph.Start();
}
public async Task InitializeSounds()
{
InputNodes = new ObservableCollection <AudioFileInputNode>();
FileInputNodesDictionary = new Dictionary <string, AudioFileInputNode>();
AudioGraphSettings settings = new AudioGraphSettings(AudioRenderCategory.Media);
CreateAudioGraphResult result = await AudioGraph.CreateAsync(settings);
if (result.Status == AudioGraphCreationStatus.Success)
{
graph = result.Graph;
CreateAudioDeviceOutputNodeResult deviceOutputNodeResult = await graph.CreateDeviceOutputNodeAsync();
// make sure the audio output is available
if (deviceOutputNodeResult.Status == AudioDeviceNodeCreationStatus.Success)
{
outputNode = deviceOutputNodeResult.DeviceOutputNode;
graph.ResetAllNodes();
for (int i = 0; i < countdownSoundsNum; i++)
{
await CreateInputNodeFromFile(baseUri + countdownBaseFileName + "0" + (i + 1).ToString() + "-" + "1" + audioFileExt);
await CreateInputNodeFromFile(baseUri + countdownBaseFileName + "0" + (i + 1).ToString() + "-" + "2" + audioFileExt);
}
for (int j = 0; j < doneSoundsNum; j++)
{
await CreateInputNodeFromFile(baseUri + doneBaseFileName + ((j >= 9) ? "" : "0") + (j + 1).ToString() + audioFileExt);
}
graph.Start();
}
}
}
private async void initGraph()
{
AudioGraphSettings settings = new AudioGraphSettings(AudioRenderCategory.Media);
CreateAudioGraphResult result = await AudioGraph.CreateAsync(settings);
graph = result.Graph;
// Create a device output node
CreateAudioDeviceOutputNodeResult deviceOutputNodeResult = await graph.CreateDeviceOutputNodeAsync();
deviceOutput = deviceOutputNodeResult.DeviceOutputNode;
FileOpenPicker filePicker = new FileOpenPicker();
filePicker.SuggestedStartLocation = PickerLocationId.MusicLibrary;
filePicker.FileTypeFilter.Add(".mp3");
filePicker.FileTypeFilter.Add(".wav");
StorageFile file = await GetPackagedFile(null, "audio.mp3");
CreateAudioFileInputNodeResult fileInputResult = await graph.CreateFileInputNodeAsync(file);
fileInput = fileInputResult.FileInputNode;
fileInput.AddOutgoingConnection(deviceOutput);
graph.Start();
}
private async Task CreateAudioGraph()
{
AudioGraphSettings settings = new AudioGraphSettings(AudioRenderCategory.Media);
CreateAudioGraphResult result = await AudioGraph.CreateAsync(settings);
if (result.Status != AudioGraphCreationStatus.Success)
{
NotifyUser(String.Format("AudioGraph Creation Error because {0}", result.Status.ToString()), NotifyType.ErrorMessage);
return;
}
graph = result.Graph;
graph.EncodingProperties.SampleRate = 44100;
CreateAudioDeviceOutputNodeResult deviceOutputResult = await graph.CreateDeviceOutputNodeAsync();
if (deviceOutputResult.Status != AudioDeviceNodeCreationStatus.Success)
{
NotifyUser(String.Format("Audio Device Output unavailable because {0}", deviceOutputResult.Status.ToString()), NotifyType.ErrorMessage);
speakerContainer.Background = new SolidColorBrush(Colors.Red);
return;
}
deviceOutputNode = deviceOutputResult.DeviceOutputNode;
NotifyUser("Device Output Node successfully created", NotifyType.StatusMessage);
speakerContainer.Background = new SolidColorBrush(Colors.Green);
}
// Initializes AudioGraph
public async Task InitAudioGraph()
{
AudioGraphSettings settings = new AudioGraphSettings(AudioRenderCategory.Media);
CreateAudioGraphResult result = await
AudioGraph.CreateAsync(settings);
audioGraph = result.Graph;
}
internal async Task Initialize()
{
// Create an AudioGraph with default settings
var settings = new AudioGraphSettings(AudioRenderCategory.Media);
var result = await AudioGraph.CreateAsync(settings);
if (result.Status != AudioGraphCreationStatus.Success)
{
// Cannot create graph
Debug.WriteLine(string.Format("AudioGraph Creation Error because {0}", result.Status.ToString()));
return;
}
_audioGraph = result.Graph;
// Create a device output node
var deviceOutputResult = await _audioGraph.CreateDeviceOutputNodeAsync();
if (deviceOutputResult.Status != AudioDeviceNodeCreationStatus.Success)
{
// Cannot create device output
Debug.WriteLine(string.Format("Audio Device Output unavailable because {0}",
deviceOutputResult.Status.ToString()));
return;
}
var deviceOutputNode = deviceOutputResult.DeviceOutputNode;
Debug.WriteLine("Device Output Node successfully created");
CreateFrameInputNode();
_frameInputNode.AddOutgoingConnection(deviceOutputNode);
}
private void CreateAudioGraph()
{
// Create an AudioGraph with default settings
AudioGraphSettings settings = new AudioGraphSettings(AudioRenderCategory.Media);
CreateAudioGraphResult result = AudioGraph.CreateAsync(settings).GetResults();
if (result.Status != AudioGraphCreationStatus.Success)
{
// Cannot create graph
return;
}
graph = result.Graph;
// Create a device output node
CreateAudioDeviceOutputNodeResult deviceOutputResult = graph.CreateDeviceOutputNodeAsync().GetResults();
if (deviceOutputResult.Status != AudioDeviceNodeCreationStatus.Success)
{
// Cannot create device output
return;
}
deviceOutputNode = deviceOutputResult.DeviceOutputNode;
}
//
//
public AudioEngine(DeviceInformation audioRenderDevice, DeviceInformation audioCaptureDevice)
{
inputDevice = audioCaptureDevice;
//
//
//
//audEncodingProperties = new Windows.Media.MediaProperties.AudioEncodingProperties();
//
//audEncodingProperties.Bitrate = 3072000;
//audEncodingProperties.BitsPerSample = 32;
//audEncodingProperties.ChannelCount = 2;
//audEncodingProperties.SampleRate = 48000;
//audEncodingProperties.Subtype = "Float";
//
//
//
audGraphSettings = new AudioGraphSettings(AudioRenderCategory.Media);
//
//audGraphSettings.AudioRenderCategory = AudioRenderCategory.Media;
audGraphSettings.DesiredRenderDeviceAudioProcessing = Windows.Media.AudioProcessing.Raw;
//audGraphSettings.DesiredSamplesPerQuantum = 480;
//audGraphSettings.EncodingProperties = audEncodingProperties;
audGraphSettings.QuantumSizeSelectionMode = QuantumSizeSelectionMode.LowestLatency;
audGraphSettings.PrimaryRenderDevice = audioRenderDevice;
//
//
//
//InitializeAsync();
}
private async Task CreateAudioGraph()
{
// Create an AudioGraph with default settings
AudioGraphSettings settings = new AudioGraphSettings(AudioRenderCategory.Media);
CreateAudioGraphResult result = await AudioGraph.CreateAsync(settings);
if (result.Status != AudioGraphCreationStatus.Success)
{
// Cannot create graph
await ShowMessage(String.Format("AudioGraph Creation Error because {0}", result.Status.ToString()));
return;
}
graph = result.Graph;
// Create a device output node
CreateAudioDeviceOutputNodeResult deviceOutputNodeResult = await graph.CreateDeviceOutputNodeAsync();
if (deviceOutputNodeResult.Status != AudioDeviceNodeCreationStatus.Success)
{
// Cannot create device output node
await ShowMessage(String.Format("Device Output unavailable because {0}", deviceOutputNodeResult.Status.ToString()));
return;
}
deviceOutput = deviceOutputNodeResult.DeviceOutputNode;
await ShowMessage("Device Output Node successfully created");
}
private async Task CreateAudioGraph()
{
// Create an AudioGraph with default settings
AudioGraphSettings settings = new AudioGraphSettings(AudioRenderCategory.Media);
CreateAudioGraphResult result = await AudioGraph.CreateAsync(settings);
if (result.Status != AudioGraphCreationStatus.Success)
{
// Cannot create graph
rootPage.NotifyUser(String.Format("AudioGraph Creation Error because {0}", result.Status.ToString()), NotifyType.ErrorMessage);
return;
}
graph = result.Graph;
// Create a device output node
CreateAudioDeviceOutputNodeResult deviceOutputNodeResult = await graph.CreateDeviceOutputNodeAsync();
if (deviceOutputNodeResult.Status != AudioDeviceNodeCreationStatus.Success)
{
// Cannot create device output node
rootPage.NotifyUser(String.Format("Device Output unavailable because {0}", deviceOutputNodeResult.Status.ToString()), NotifyType.ErrorMessage);
speakerContainer.Background = new SolidColorBrush(Colors.Red);
return;
}
deviceOutput = deviceOutputNodeResult.DeviceOutputNode;
rootPage.NotifyUser("Device Output Node successfully created", NotifyType.StatusMessage);
speakerContainer.Background = new SolidColorBrush(Colors.Green);
}
public async Task CreateAudioGraph()
{
AudioGraphSettings settings = new AudioGraphSettings(AudioRenderCategory.Media);
settings.QuantumSizeSelectionMode = QuantumSizeSelectionMode.LowestLatency;
settings.PrimaryRenderDevice = outputDevices[0];
CreateAudioGraphResult result = await AudioGraph.CreateAsync(settings);
if (result.Status != AudioGraphCreationStatus.Success)
{
MessageDialog md = new MessageDialog("Error in creating Audio Graph", "OOPS!!");
await md.ShowAsync();
return;
}
graph = result.Graph;
CreateAudioDeviceInputNodeResult deviceInputNodeResult = await graph.CreateDeviceInputNodeAsync(MediaCategory.Other);
if (deviceInputNodeResult.Status != AudioDeviceNodeCreationStatus.Success)
{
MessageDialog md = new MessageDialog("Error in creating InputDeviceNode", "OOPS!!");
await md.ShowAsync();
return;
}
deviceInputNode = deviceInputNodeResult.DeviceInputNode;
}
public async void CaptureAudio()
{
AudioGraphSettings audioGraphSettings = new AudioGraphSettings(Windows.Media.Render.AudioRenderCategory.Speech);
var result = await AudioGraph.CreateAsync(audioGraphSettings);
if (result.Status != AudioGraphCreationStatus.Success)
{
return;
}
_audioGraph = result.Graph;
var deviceInputNodeResult = await _audioGraph.CreateDeviceInputNodeAsync(Windows.Media.Capture.MediaCategory.Speech);
if (deviceInputNodeResult.Status != AudioDeviceNodeCreationStatus.Success)
{
return;
}
var deviceInputNode = deviceInputNodeResult.DeviceInputNode;
_audioFile = await Windows.Storage.ApplicationData.Current.TemporaryFolder
.CreateFileAsync("speech", CreationCollisionOption.ReplaceExisting);
var mediaEncodingProfile = MediaEncodingProfile.CreateMp3(AudioEncodingQuality.High);
var fileOutputNodeResult = await _audioGraph.CreateFileOutputNodeAsync(_audioFile, mediaEncodingProfile);
if (fileOutputNodeResult.Status != AudioFileNodeCreationStatus.Success)
{
return;
}
var fileOutputNode = fileOutputNodeResult.FileOutputNode;
deviceInputNode.AddOutgoingConnection(fileOutputNode);
_audioGraph.Start();
}
protected override async void OnNavigatedTo(NavigationEventArgs e)
{
base.OnNavigatedTo(e);
var mediaSource = MediaSource.CreateFromUri(new Uri("ms-appx:///Test/GirlishLover.m4a"));
await mediaSource.OpenAsync();
this.mpe.Source = mediaSource;
this.mpe.MediaPlayer.MediaOpened += this.MediaPlayer_MediaOpened;
var settings = new AudioGraphSettings(Windows.Media.Render.AudioRenderCategory.Other)
{
QuantumSizeSelectionMode = QuantumSizeSelectionMode.LowestLatency
};
var result = await AudioGraph.CreateAsync(settings);
this.audioGraph = result.Graph;
this.outNode = this.audioGraph.CreateFrameOutputNode();
this.fileNode = (await this.audioGraph.CreateFileInputNodeAsync(await StorageFile.GetFileFromApplicationUriAsync(new Uri("ms-appx:///Test/GirlishLover.m4a")))).FileInputNode;
this.fileNode.LoopCount = 0;
this.fileNode.AddOutgoingConnection(this.outNode);
this.fileNode.FileCompleted += this.FileNode_FileCompleted;
this.audioGraph.QuantumStarted += this.AudioGraph_QuantumStarted;
this.audioGraph.Start();
}
public async Task Init()
{
AudioGraphSettings audioGraphSettings = new AudioGraphSettings(Windows.Media.Render.AudioRenderCategory.Media);
var result = await AudioGraph.CreateAsync(audioGraphSettings);
if (result == null || result.Status != AudioGraphCreationStatus.Success)
{
return;
}
audioGraph = result.Graph;
var createAudioDeviceOutputResult = await audioGraph.CreateDeviceOutputNodeAsync();
if (createAudioDeviceOutputResult == null || createAudioDeviceOutputResult.Status != AudioDeviceNodeCreationStatus.Success)
{
return;
}
deviceOutputNode = createAudioDeviceOutputResult.DeviceOutputNode;
AudioEncodingProperties audioEncodingProperties = new AudioEncodingProperties();
audioEncodingProperties.BitsPerSample = 32;
audioEncodingProperties.ChannelCount = 2;
audioEncodingProperties.SampleRate = 44100;
audioEncodingProperties.Subtype = MediaEncodingSubtypes.Float;
audioFrameInputNode = audioGraph.CreateFrameInputNode(audioEncodingProperties);
audioFrameInputNode.QuantumStarted += FrameInputNode_QuantumStarted;
audioFrameInputNode.AddOutgoingConnection(deviceOutputNode);
audioGraph.Start();
}
/// <summary>
/// Creates the audio graph output.<br/>
/// IMPORTANT: Only 32-bit IEEEFloat format is supported!
/// </summary>
/// <param name="ChannelCount">The number of channels. Default: 2(Stereo)</param>
/// <param name="SampleRate">The sample rate. Default: 192000Hz</param>
/// <returns></returns>
/// <exception cref="System.Exception">AudioGraph creation error: " + result.Status.ToString()</exception>
public static async Task <AudioGraphOutput> CreateAudioGraphOutput(uint ChannelCount = 2, uint SampleRate = 192000)
{
AudioGraphSettings settings = new AudioGraphSettings(AudioRenderCategory.Media)
{
QuantumSizeSelectionMode = QuantumSizeSelectionMode.ClosestToDesired,
EncodingProperties = new AudioEncodingProperties()
{
BitsPerSample = 32,
ChannelCount = ChannelCount,
SampleRate = SampleRate,
Subtype = "Float"
}
};
CreateAudioGraphResult result = await AudioGraph.CreateAsync(settings);
if (result.Status != AudioGraphCreationStatus.Success)
{
throw new Exception("AudioGraph creation error: " + result.Status.ToString(), result.ExtendedError);
}
CreateAudioDeviceOutputNodeResult deviceOutputNodeResult = await result.Graph.CreateDeviceOutputNodeAsync();
if (deviceOutputNodeResult.Status != AudioDeviceNodeCreationStatus.Success)
{
throw new Exception("AudioGraph creation error: " + deviceOutputNodeResult.Status.ToString(), deviceOutputNodeResult.ExtendedError);
}
return(new AudioGraphOutput(result.Graph, deviceOutputNodeResult.DeviceOutputNode));
}
/// <summary>
/// Creates an instance of AudioGraph and sets io_progress
/// </summary>
public async Task <CreateAudioGraphResult> Init(
Progress <double> progress)
{
// set io_progress var to show progress of input-output
_ioProgress = progress;
// initialize settings for AudioGraph
var settings =
new AudioGraphSettings(
AudioRenderCategory.Media
);
// if audioGraph was previously created
if (_audioGraph != null)
{
_audioGraph.Dispose();
_audioGraph = null;
}
var result =
await AudioGraph.CreateAsync(settings);
if (result.Status == AudioGraphCreationStatus.Success)
{
_audioGraph = result.Graph;
}
return(result);
}
private async Task CreateAudioGraph()
{
// Create an AudioGraph with default settings
AudioGraphSettings settings = new AudioGraphSettings(AudioRenderCategory.Media);
CreateAudioGraphResult result = await AudioGraph.CreateAsync(settings);
if (result.Status != AudioGraphCreationStatus.Success)
{
// Cannot create graph
throw new Exception("error");
}
_graph = result.Graph;
// Create a device output node
CreateAudioDeviceOutputNodeResult deviceOutputResult = await _graph.CreateDeviceOutputNodeAsync();
_subMixNode = _graph.CreateSubmixNode();
if (deviceOutputResult.Status != AudioDeviceNodeCreationStatus.Success)
{
// Cannot create device output
throw new Exception("error");
}
_deviceOutputNode = deviceOutputResult.DeviceOutputNode;
_subMixNode.AddOutgoingConnection(_deviceOutputNode);
}
// create the audio graph and output
private async void InitAudioGraph()
{
var settings = new AudioGraphSettings(AudioRenderCategory.Media);
settings.QuantumSizeSelectionMode = QuantumSizeSelectionMode.LowestLatency; // pick lowest latency available to devices in the graph
// create the audio graph
_graph = (await AudioGraph.CreateAsync(settings)).Graph;
if (_graph == null)
{
// failed to create audio graph
MessageDialog dlg = new MessageDialog("Failed to create audio graph");
await dlg.ShowAsync();
return;
}
// create the output. You could also create file output here to stream to a temp file or similar
_deviceOutput = (await _graph.CreateDeviceOutputNodeAsync()).DeviceOutputNode;
if (_deviceOutput == null)
{
// failed to create audio output
MessageDialog dlg = new MessageDialog("Failed to create device output");
await dlg.ShowAsync();
return;
}
// load all of the samples into graph nodes
BuildFileNodes();
// start playback
_graph.Start();
}
private async Task CreateAudioGraph()
{
// Create an AudioGraph with default settings
AudioGraphSettings settings = new AudioGraphSettings(AudioRenderCategory.Media);
CreateAudioGraphResult result = await AudioGraph.CreateAsync(settings);
if (result.Status != AudioGraphCreationStatus.Success)
{
// Cannot create graph
Logging.SingleInstance.LogMessage("AudioGraph Creation Error because " + result.Status);
return;
}
graph = result.Graph;
// Create a device output node
CreateAudioDeviceOutputNodeResult deviceOutputNodeResult = await graph.CreateDeviceOutputNodeAsync();
if (deviceOutputNodeResult.Status != AudioDeviceNodeCreationStatus.Success)
{
// Cannot create device output node
Logging.SingleInstance.LogMessage(String.Format("Device Output unavailable because {0}", deviceOutputNodeResult.Status.ToString()));
return;
}
deviceOutput = deviceOutputNodeResult.DeviceOutputNode;
Logging.SingleInstance.LogMessage("Device Output Node successfully created");
}
private async void Create()
{
OutputDevices = await DeviceInformation.FindAllAsync(MediaDevice.GetAudioRenderSelector());
var settings = new AudioGraphSettings(AudioRenderCategory.Media)
{
QuantumSizeSelectionMode = QuantumSizeSelectionMode.LowestLatency
};
var audioGraphResult = await AudioGraph.CreateAsync(settings);
if (audioGraphResult.Status != AudioGraphCreationStatus.Success)
{
throw new ApplicationException($"Audio graph error: {audioGraphResult.Status}");
}
Graph = audioGraphResult.Graph;
Graph.QuantumProcessed += (audioGraph, e) => AudioGraphQuantumProcessed();
Graph.QuantumStarted += (audioGraph, e) => AudioGraphQuantumStarted();
InputDevice = await CreateInputDevice().ConfigureAwait(true);
OutputDevice = await CreateOutputDevice().ConfigureAwait(true);
RecordingOutputNode = CreateFrameOutputNode();
Ready?.Invoke(this, EventArgs.Empty);
}
public async Task <bool> InitializeAudioGraphAsync()
{
var audioGraphSettings = new AudioGraphSettings(AudioRenderCategory.Media);
var result = await AudioGraph.CreateAsync(audioGraphSettings);
LastStatus = result.Status.ToString();
if (result.Status != AudioGraphCreationStatus.Success)
{
return(false);
}
_audioGraph = result.Graph;
_audioGraph.UnrecoverableErrorOccurred += (sender, args) => OnErrorOccurred(args);
var outputResult = await _audioGraph.CreateDeviceOutputNodeAsync();
LastStatus = outputResult.Status.ToString();
if (outputResult.Status != AudioDeviceNodeCreationStatus.Success)
{
_audioGraph.Dispose();
return(false);
}
_outputNode = outputResult.DeviceOutputNode;
CreateEchoEffect();
CreateLimiterEffect();
CreateReverbEffect();
CreateEqualizerEffect();
return(true);
}
public async Task <bool> InitializeSound()
{
AudioGraphSettings settings = new AudioGraphSettings(AudioRenderCategory.Media);
CreateAudioGraphResult result = await AudioGraph.CreateAsync(settings);
if (result.Status != AudioGraphCreationStatus.Success)
{
return(false);
}
graph = result.Graph;
CreateAudioDeviceOutputNodeResult deviceOutputNodeResult = await graph.CreateDeviceOutputNodeAsync();
if (deviceOutputNodeResult.Status == AudioDeviceNodeCreationStatus.Success)
{
deviceOutput = deviceOutputNodeResult.DeviceOutputNode;
graph.ResetAllNodes();
foreach (var soundMapping in soundMappings)
{
await AddFileToSoundDictionary("ms-appx:///Features/Game/Assets/" + soundMapping.Value);
}
graph.Start();
}
isInitialized = true;
return(isInitialized);
}
public IAsyncOperation <AudioFrameReader> OpenAudioFrameReaderAsync()
{
return(Task.Run(async() =>
{
if (AudioReader == null)
{
var microphones = await DeviceInformation.FindAllAsync(DeviceInformation.GetAqsFilterFromDeviceClass(DeviceClass.AudioCapture));
var kinectMicArray = microphones.FirstOrDefault(mic => mic.Name.ToLowerInvariant().Contains("xbox nui sensor"));
if (kinectMicArray != null)
{
//TODO: review parameters
var settings = new AudioGraphSettings(AudioRenderCategory.Speech);
settings.EncodingProperties = AudioEncodingProperties.CreatePcm(16000, 4, 32);
settings.EncodingProperties.Subtype = MediaEncodingSubtypes.Float;
settings.QuantumSizeSelectionMode = QuantumSizeSelectionMode.LowestLatency;
settings.DesiredRenderDeviceAudioProcessing = Windows.Media.AudioProcessing.Raw;
var audioGraphResult = await AudioGraph.CreateAsync(settings);
if (audioGraphResult.Status == AudioGraphCreationStatus.Success)
{
var inputNodeResult = await audioGraphResult.Graph.CreateDeviceInputNodeAsync(MediaCategory.Speech, audioGraphResult.Graph.EncodingProperties, kinectMicArray);
if (inputNodeResult.Status == AudioDeviceNodeCreationStatus.Success)
{
var output = audioGraphResult.Graph.CreateFrameOutputNode(audioGraphResult.Graph.EncodingProperties);
AudioReader = new AudioFrameReader(audioGraphResult.Graph, output);
}
}
}
}
AudioReader?.Open();
return AudioReader;
}).AsAsyncOperation());
}
// Init the AudioGraph
// despite the Aync methods - this will exec synchronously to get the InitPhase only get done when all is available
private void InitAudioGraph( )
{
LOG.Log("InitAudioGraph: Begin");
if (!_canPlay)
{
LOG.Log("InitAudioGraph: Canceled with _canPlay = false");
return; // cannot even try..
}
// MUST WAIT UNTIL all items are created, else one may call Play too early...
// cleanup existing items
if (_deviceOutputNode != null)
{
_deviceOutputNode.Dispose( ); _deviceOutputNode = null;
}
if (_audioGraph != null)
{
_audioGraph.Dispose( ); _audioGraph = null;
}
// Create an AudioGraph
AudioGraphSettings settings = new AudioGraphSettings(_renderCat)
{
PrimaryRenderDevice = null, // If PrimaryRenderDevice is null, the default playback device will be used.
MaxPlaybackSpeedFactor = 2, // should preserve some memory
};
// We await here the execution without providing an async method ...
var resultAG = WindowsRuntimeSystemExtensions.AsTask(AudioGraph.CreateAsync(settings));
resultAG.Wait( );
if (resultAG.Result.Status != AudioGraphCreationStatus.Success)
{
LOG.LogError($"InitAudioGraph: Failed to create AudioGraph with RenderCategory: {_renderCat}");
LOG.LogError($"InitAudioGraph: AudioGraph creation: {resultAG.Result.Status}, TaskStatus: {resultAG.Status}"
+ $"\nExtError: {resultAG.Result.ExtendedError}");
_canPlay = false;
return;
}
_audioGraph = resultAG.Result.Graph;
LOG.Log($"InitAudioGraph: AudioGraph: [{_audioGraph.EncodingProperties}]");
// Create a device output node
// The output node uses the PrimaryRenderDevice of the audio graph.
// We await here the execution without providing an async method ...
var resultDO = WindowsRuntimeSystemExtensions.AsTask(_audioGraph.CreateDeviceOutputNodeAsync());
resultDO.Wait( );
if (resultDO.Result.Status != AudioDeviceNodeCreationStatus.Success)
{
// Cannot create device output node
LOG.LogError($"InitAudioGraph: DeviceOutputNode creation: {resultDO.Result.Status}, TaskStatus: {resultDO.Status}"
+ $"\nExtError: {resultDO.Result.ExtendedError}");
_canPlay = false;
return;
}
_deviceOutputNode = resultDO.Result.DeviceOutputNode;
LOG.Log($"InitAudioGraph: DeviceOutputNode: [{_deviceOutputNode.Device}]");
LOG.Log($"InitAudioGraph: InitAudioGraph-END");
}
public async Task InitializeSounds()
{
soundBankInitializer = new SoundBanksInitializer();
POneInputNodes = new ObservableCollection <AudioFileInputNode>();
PTwoInputNodes = new ObservableCollection <AudioFileInputNode>();
WOneInputNodes = new ObservableCollection <AudioFileInputNode>();
WTwoInputNodes = new ObservableCollection <AudioFileInputNode>();
InputNodesList = new ObservableCollection <ObservableCollection <AudioFileInputNode> >();
InputNodesList.Add(POneInputNodes);
InputNodesList.Add(PTwoInputNodes);
InputNodesList.Add(WOneInputNodes);
InputNodesList.Add(WTwoInputNodes);
AudioGraphSettings settings = new AudioGraphSettings(AudioRenderCategory.Media);
CreateAudioGraphResult result = await AudioGraph.CreateAsync(settings);
if (result.Status == AudioGraphCreationStatus.Success)
{
graph = result.Graph;
// create the output device
CreateAudioDeviceOutputNodeResult deviceOutputNodeResult = await graph.CreateDeviceOutputNodeAsync();
// make sure the audio output is available
if (deviceOutputNodeResult.Status == AudioDeviceNodeCreationStatus.Success)
{
deviceOutputNode = deviceOutputNodeResult.DeviceOutputNode;
graph.ResetAllNodes();
foreach (SoundBank soundBank in soundBankInitializer.SoundBanks)
{
foreach (string fileName in soundBank.FileNames[0])
{
await CreateInputNodeFromFile("ms-appx:///Assets/AudioSamples/" + fileName);
InputNodesList[soundBankInitializer.SoundBanks.IndexOf(soundBank)].Add(FileInputNodesDictionary[fileName]);
}
foreach (string fileName in soundBank.FileNames[1])
{
await CreateInputNodeFromFile("ms-appx:///Assets/AudioSamples/" + fileName);
FileInputNodesDictionary[fileName].LoopCount = null;
InputNodesList[soundBankInitializer.SoundBanks.IndexOf(soundBank)].Add(FileInputNodesDictionary[fileName]);
}
}
InitializeEffects();
graph.Start();
}
}
}
private async Task CreateAudioGraph()
{
AudioGraphSettings settings = new AudioGraphSettings(AudioRenderCategory.Media);
settings.QuantumSizeSelectionMode = QuantumSizeSelectionMode.LowestLatency;
settings.PrimaryRenderDevice = outputDevices[outputDevicesListBox.SelectedIndex - 1];
CreateAudioGraphResult result = await AudioGraph.CreateAsync(settings);
if (result.Status != AudioGraphCreationStatus.Success)
{
// Cannot create graph
rootPage.NotifyUser(String.Format("AudioGraph Creation Error because {0}", result.Status.ToString()), NotifyType.ErrorMessage);
return;
}
graph = result.Graph;
rootPage.NotifyUser("Graph successfully created!", NotifyType.StatusMessage);
// Create a device output node
CreateAudioDeviceOutputNodeResult deviceOutputNodeResult = await graph.CreateDeviceOutputNodeAsync();
if (deviceOutputNodeResult.Status != AudioDeviceNodeCreationStatus.Success)
{
// Cannot create device output node
rootPage.NotifyUser(String.Format("Audio Device Output unavailable because {0}", deviceOutputNodeResult.Status.ToString()), NotifyType.ErrorMessage);
outputDeviceContainer.Background = new SolidColorBrush(Colors.Red);
return;
}
deviceOutputNode = deviceOutputNodeResult.DeviceOutputNode;
rootPage.NotifyUser("Device Output connection successfully created", NotifyType.StatusMessage);
outputDeviceContainer.Background = new SolidColorBrush(Colors.Green);
// Create a device input node using the default audio input device
CreateAudioDeviceInputNodeResult deviceInputNodeResult = await graph.CreateDeviceInputNodeAsync(MediaCategory.Other);
if (deviceInputNodeResult.Status != AudioDeviceNodeCreationStatus.Success)
{
// Cannot create device input node
rootPage.NotifyUser(String.Format("Audio Device Input unavailable because {0}", deviceInputNodeResult.Status.ToString()), NotifyType.ErrorMessage);
inputDeviceContainer.Background = new SolidColorBrush(Colors.Red);
return;
}
deviceInputNode = deviceInputNodeResult.DeviceInputNode;
rootPage.NotifyUser("Device Input connection successfully created", NotifyType.StatusMessage);
inputDeviceContainer.Background = new SolidColorBrush(Colors.Green);
// Since graph is successfully created, enable the button to select a file output
fileButton.IsEnabled = true;
// Disable the graph button to prevent accidental click
createGraphButton.IsEnabled = false;
// Because we are using lowest latency setting, we need to handle device disconnection errors
graph.UnrecoverableErrorOccurred += Graph_UnrecoverableErrorOccurred;
}
// Find a valid AudioGraph RenderCategory
// this should leave _renderCat with a valid one or _renderNone
private void FindRenderCategory( )
{
// A list of tryouts for the output rendering
Queue <AudioRenderCategory> renderSequence = new Queue <AudioRenderCategory>(new [] {
AudioRenderCategory.Speech,
AudioRenderCategory.GameChat,
AudioRenderCategory.GameEffects,
AudioRenderCategory.SoundEffects,
AudioRenderCategory.Media,
AudioRenderCategory.Other,
// Finally the Not Available Cat
_renderNone,
});
_renderCat = renderSequence.Dequeue( );
// Try a cat that works
do
{
// Create an AudioGraph
AudioGraphSettings settings = new AudioGraphSettings(_renderCat)
{
PrimaryRenderDevice = null, // If PrimaryRenderDevice is null, the default playback device will be used.
};
LOG.Log($"FindRenderCategory: About to test AudioGraph with RenderCategory: {_renderCat}");
// We await here the execution without providing an async method ...
var resultAG = WindowsRuntimeSystemExtensions.AsTask(AudioGraph.CreateAsync(settings));
resultAG.Wait( );
if (resultAG.Result.Status != AudioGraphCreationStatus.Success)
{
LOG.LogError($"FindRenderCategory: AudioGraph test error: {resultAG.Result.Status}, TaskStatus: {resultAG.Status}"
+ $"\nExtError: {resultAG.Result.ExtendedError}");
// try next category if there is one left
if (renderSequence.Count > 0)
{
_renderCat = renderSequence.Dequeue( );
}
else
{
// sanity - should never happen
LOG.LogError($"FindRenderCategory: Program error - Queue overrun");
_renderCat = _renderNone;
return;
}
}
else
{
resultAG.Result.Graph?.Dispose( ); // not used after tryout
LOG.Log($"FindRenderCategory: Success with RenderCategory: {_renderCat}");
return; // _renderCat contains a successful one
}
} while (_renderCat != _renderNone);
LOG.LogError($"FindRenderCategory: Failed to find a working RenderCategory - cannot speak");
_canSpeak = false;
return; // could not resolve - left with _renderNone
}
private async Task InitializeAudioAsync()
{
// Create an AudioGraph with default settings
AudioGraphSettings settings = new AudioGraphSettings(AudioRenderCategory.Media);
settings.EncodingProperties = AudioEncodingProperties.CreatePcm(22050, 1, 16);
CreateAudioGraphResult result = await AudioGraph.CreateAsync(settings);
if (result.Status != AudioGraphCreationStatus.Success)
{
return;
}
_graph = result.Graph;
// Create a device output node
CreateAudioDeviceOutputNodeResult deviceOutputNodeResult = await _graph.CreateDeviceOutputNodeAsync();
if (deviceOutputNodeResult.Status != AudioDeviceNodeCreationStatus.Success)
{
return;
}
_deviceOutputNode = deviceOutputNodeResult.DeviceOutputNode;
CreateAudioDeviceInputNodeResult deviceInputNodeResult = await _graph.CreateDeviceInputNodeAsync(MediaCategory.Other);
if (deviceInputNodeResult.Status != AudioDeviceNodeCreationStatus.Success)
{
return;
}
_deviceInputNode = deviceInputNodeResult.DeviceInputNode;
// Create the FrameInputNode at the same format as the graph, except explicitly set mono.
AudioEncodingProperties nodeEncodingProperties = _graph.EncodingProperties;
nodeEncodingProperties.ChannelCount = 1;
_frameInputNode = _graph.CreateFrameInputNode(nodeEncodingProperties);
_frameInputNode.AddOutgoingConnection(_deviceOutputNode);
_frameOutputNode = _graph.CreateFrameOutputNode(nodeEncodingProperties);
_deviceInputNode.AddOutgoingConnection(_frameOutputNode);
// Initialize the Frame Input Node in the stopped state
_frameInputNode.Stop();
// Hook up an event handler so we can start generating samples when needed
// This event is triggered when the node is required to provide data
_frameInputNode.QuantumStarted += node_QuantumStarted;
_graph.QuantumProcessed += GraphOnQuantumProcessed;
// Start the graph since we will only start/stop the frame input node
_graph.Start();
}
async Task Init()
{
try
{
await Stop();
var pcmEncoding = AudioEncodingProperties.CreatePcm((uint)SampleRate, (uint)ChannelCount, (uint)BitsPerSample);
// apparently this is not _really_ used/supported here, as the audio data seems to come thru as floats (so basically MediaEncodingSubtypes.Float?)
pcmEncoding.Subtype = MediaEncodingSubtypes.Pcm;
var graphSettings = new AudioGraphSettings(AudioRenderCategory.Media)
{
EncodingProperties = pcmEncoding,
DesiredRenderDeviceAudioProcessing = AudioProcessing.Raw
// these do not seem to take effect on certain hardware and MSFT recommends SystemDefault when recording to a file anyway
// We'll buffer audio data ourselves to improve RMS calculation across larger samples
//QuantumSizeSelectionMode = QuantumSizeSelectionMode.ClosestToDesired,
//DesiredSamplesPerQuantum = 4096
};
// create our audio graph... this will be a device input node feeding audio data into a frame output node
var graphResult = await AudioGraph.CreateAsync(graphSettings);
if (graphResult.Status == AudioGraphCreationStatus.Success)
{
audioGraph = graphResult.Graph;
// take input from whatever the default communications device is set to me on windows
var inputResult = await audioGraph.CreateDeviceInputNodeAsync(MediaCategory.Communications, pcmEncoding);
if (inputResult.Status == AudioDeviceNodeCreationStatus.Success)
{
// create the output node
outputNode = audioGraph.CreateFrameOutputNode(pcmEncoding);
// wire the input to the output
inputResult.DeviceInputNode.AddOutgoingConnection(outputNode);
// Attach to QuantumStarted event in order to receive synchronous updates from audio graph (to capture incoming audio)
audioGraph.QuantumStarted += Graph_QuantumStarted;
audioGraph.UnrecoverableErrorOccurred += Graph_UnrecoverableErrorOccurred;
}
else
{
throw new Exception($"audioGraph.CreateDeviceInputNodeAsync() returned non-Success status: {inputResult.Status}");
}
}
else
{
throw new Exception($"AudioGraph.CreateAsync() returned non-Success status: {graphResult.Status}");
}
}
catch
{
throw;
}
}
public static async Task AudioDevices()
{
if (beep == null)
{
beep = await StorageFile.GetFileFromApplicationUriAsync(new Uri("ms-appx:///Assets/Audio/beep.wav"));
}
DeviceInformationCollection devices = await Windows.Devices.Enumeration.DeviceInformation.FindAllAsync(Windows.Media.Devices.MediaDevice.GetAudioRenderSelector());
DeviceInformation selectedDevice = null;
// Sometimes usb mics are confused as speakers.. so add check to make Speakers (Raspberry Pi 2 audio) the default <-- Confirmed works on rpi3
//for (int i = 0; i <= devices.Count; i++)
//{
// if (i != devices.Count)
// {
// if (DeviceTypeInformation.IsRaspberryPi)
// {
// if (devices[i].Name == "Speakers (Raspberry Pi 2 audio)")
// {
// selectedDevice = devices[i];
// break;
// }
// }
// else
// {
// selectedDevice = devices[i];
// break;
// }
// }
//}
settings = new AudioGraphSettings(AudioRenderCategory.Media);
settings.PrimaryRenderDevice = selectedDevice;
CreateAudioGraphResult resultg = await AudioGraph.CreateAsync(settings);
audioflow = resultg.Graph;
CreateAudioDeviceOutputNodeResult deviceOutputNodeResult = await audioflow.CreateDeviceOutputNodeAsync();
CreateAudioDeviceInputNodeResult deviceInputNodeResult = await audioflow.CreateDeviceInputNodeAsync(MediaCategory.Media);
deviceOuput = deviceOutputNodeResult.DeviceOutputNode;
try
{
_mediaCapture = new MediaCapture();
await _mediaCapture.InitializeAsync();
_mediaCapture.Failed += _mediaCapture_Failed;
_mediaCapture.AudioDeviceController.VolumePercent = 0.75f;
}
catch
{
Debug.WriteLine("Failed to setup microphone is one connected?");
}
}
public async Task InitializeAudioGraph()
{
AudioGraphSettings settings = new AudioGraphSettings(AudioRenderCategory.Media);
CreateAudioGraphResult result = await AudioGraph.CreateAsync(settings);
this._audioGraph = result.Graph;
CreateAudioDeviceOutputNodeResult outputDeviceNodeResult = await this._audioGraph.CreateDeviceOutputNodeAsync();
_deviceOutputNode = outputDeviceNodeResult.DeviceOutputNode;
}
private async Task CreateAudioGraph()
{
var settings = new AudioGraphSettings(AudioRenderCategory.Media);
var result = await AudioGraph.CreateAsync(settings);
_graph = result.Graph;
var deviceOutputNodeResult = await _graph.CreateDeviceOutputNodeAsync();
_deviceOutput = deviceOutputNodeResult.DeviceOutputNode;
_graph.ResetAllNodes();
_graph.Start();
}
async Task createAudioGraph()
{
AudioGraphSettings settings = new AudioGraphSettings(AudioRenderCategory.SoundEffects);
CreateAudioGraphResult result = await AudioGraph.CreateAsync(settings);
if (result.Status == AudioGraphCreationStatus.Success)
{
audioGraph = result.Graph;
}
}
private static async Task<AudioGraph> CreateAudioGraph()
{
// we will only play files that's why we are using AudioRenderCategory.Media
var settings = new AudioGraphSettings(AudioRenderCategory.Media);
var result = await AudioGraph.CreateAsync(settings);
if (result.Status != AudioGraphCreationStatus.Success)
{
throw new Exception("Audio graph unavailable.");
}
return result.Graph;
}
private async Task InitializeAsync()
{
var settings = new AudioGraphSettings(Windows.Media.Render.AudioRenderCategory.GameEffects);
var graphCreationResult = await AudioGraph.CreateAsync(settings);
_graph = graphCreationResult.Graph;
var deviceOutputCreationResult = await _graph.CreateDeviceOutputNodeAsync();
_deviceOutput = deviceOutputCreationResult.DeviceOutputNode;
_graph.ResetAllNodes();
_graph.Start();
}
void ISynthesizer.SetUp()
{
using (WavePlayer player = WavePlayer.CreateWavePlayer())
{
}
AudioGraphSettings settings = new AudioGraphSettings(AudioRenderCategory.Media)
{
//QuantumSizeSelectionMode = QuantumSizeSelectionMode.LowestLatency
};
AudioGraph.CreateAsync(settings).AsTask().ContinueWith(graphTask =>
{
CreateAudioGraphResult graphResult = graphTask.Result;
if(graphResult.Status != AudioGraphCreationStatus.Success)
{
this.EmitFailed();
}
else
{
graphResult.Graph.CreateDeviceOutputNodeAsync().AsTask().ContinueWith(nodeTask =>
{
CreateAudioDeviceOutputNodeResult nodeResult = nodeTask.Result;
if(nodeResult.Status != AudioDeviceNodeCreationStatus.Success)
{
this.EmitFailed();
}
else
{
_audioGraph = graphResult.Graph;
_frameInputNode = _audioGraph.CreateFrameInputNode();
_frameInputNode.AddOutgoingConnection(nodeResult.DeviceOutputNode);
_frameInputNode.QuantumStarted += this.OnQuantumStarted;
_channelsNumber = _audioGraph.EncodingProperties.ChannelCount;
_waveSource = new WaveSource(_audioGraph.EncodingProperties.SampleRate, _channelsNumber);
this.EmitReady();
}
});
}
});
}
private async void Page_Loaded(object sender, RoutedEventArgs e)
{
// midi
var s = MidiInPort.GetDeviceSelector();
var information = await DeviceInformation.FindAllAsync(s);
var list = information.ToList();
port = await MidiInPort.FromIdAsync(list.ElementAt(2).Id);
port.MessageReceived += Port_MessageReceived;
// audio
var settings = new AudioGraphSettings(AudioRenderCategory.GameEffects);
settings.QuantumSizeSelectionMode = QuantumSizeSelectionMode.LowestLatency;
var creation = await AudioGraph.CreateAsync(settings);
graph = creation.Graph;
output = await graph.CreateDeviceOutputNodeAsync();
var encoding = graph.EncodingProperties;
encoding.ChannelCount = 1;
input = graph.CreateFrameInputNode(encoding);
input.AddOutgoingConnection(output.DeviceOutputNode);
input.Stop();
input.QuantumStarted += Input_QuantumStarted;
graph.Start();
// midi notes (pitch to note)
float a = 440; // a is 440 hz...
for (int x = 0; x < 127; ++x)
{
notes[x] = (a / 32f) * (float)Math.Pow(2f, ((x - 9f) / 12f));
}
}
private async Task CreateAudioGraph()
{
// Create an AudioGraph with default settings
AudioGraphSettings settings = new AudioGraphSettings(AudioRenderCategory.Media);
CreateAudioGraphResult result = await AudioGraph.CreateAsync(settings);
if (result.Status != AudioGraphCreationStatus.Success)
{
// Cannot create graph
rootPage.NotifyUser(String.Format("AudioGraph Creation Error because {0}", result.Status.ToString()), NotifyType.ErrorMessage);
return;
}
graph = result.Graph;
// Create a device output node
CreateAudioDeviceOutputNodeResult deviceOutputResult = await graph.CreateDeviceOutputNodeAsync();
if (deviceOutputResult.Status != AudioDeviceNodeCreationStatus.Success)
{
// Cannot create device output
rootPage.NotifyUser(String.Format("Audio Device Output unavailable because {0}", deviceOutputResult.Status.ToString()), NotifyType.ErrorMessage);
speakerContainer.Background = new SolidColorBrush(Colors.Red);
return;
}
deviceOutputNode = deviceOutputResult.DeviceOutputNode;
rootPage.NotifyUser("Device Output Node successfully created", NotifyType.StatusMessage);
speakerContainer.Background = new SolidColorBrush(Colors.Green);
}
// this is an unfortunate workaround because we can't start c++ AudioGraph from the UI thread due to its blocking calls. We have to create it here and pass it to the Plugin.
private static async Task CreateAudioGraph()
{
if (graph != null)
{
return;
}
AudioGraphSettings settings = new AudioGraphSettings(AudioRenderCategory.Media); // Create an AudioGraph with default settings
CreateAudioGraphResult result = await AudioGraph.CreateAsync(settings); // this graph is bound to this process
if (result.Status != AudioGraphCreationStatus.Success)
{
return; // Cannot create graph
}
graph = result.Graph;
CheckForErrorOnCall(MicInitializeDefaultWithGraph((int)streamType, graph)); // pass the bound graph to the mic plugin. this lets our current process hear audio.
}
private async Task CreateAudioGraph()
{
// Create an AudioGraph with default setting
AudioGraphSettings settings = new AudioGraphSettings(AudioRenderCategory.Media);
CreateAudioGraphResult result = await AudioGraph.CreateAsync(settings);
if (result.Status != AudioGraphCreationStatus.Success)
{
// Can't create the graph
rootPage.NotifyUser(String.Format("AudioGraph Creation Error because {0}", result.Status.ToString()), NotifyType.ErrorMessage);
return;
}
graph = result.Graph;
// Create a device output node
CreateAudioDeviceOutputNodeResult deviceOutputNodeResult = await graph.CreateDeviceOutputNodeAsync();
if (deviceOutputNodeResult.Status != AudioDeviceNodeCreationStatus.Success)
{
// Cannot create device output node
rootPage.NotifyUser(String.Format("Audio Device Output unavailable because {0}", deviceOutputNodeResult.Status.ToString()), NotifyType.ErrorMessage);
speakerContainer.Background = new SolidColorBrush(Colors.Red);
return;
}
deviceOutputNode = deviceOutputNodeResult.DeviceOutputNode;
rootPage.NotifyUser("Device Output Node successfully created", NotifyType.StatusMessage);
speakerContainer.Background = new SolidColorBrush(Colors.Green);
submixNode = graph.CreateSubmixNode();
subMixNode.Background = new SolidColorBrush(Colors.Green);
submixNode.AddOutgoingConnection(deviceOutputNode);
echoEffect = new EchoEffectDefinition(graph);
echoEffect.WetDryMix = 0.7f;
echoEffect.Feedback = 0.5f;
echoEffect.Delay = 500.0f;
submixNode.EffectDefinitions.Add(echoEffect);
// Disable the effect in the beginning. Enable in response to user action (UI toggle switch)
submixNode.DisableEffectsByDefinition(echoEffect);
// All nodes can have an OutgoingGain property
// Setting the gain on the Submix node attenuates the output of the node
submixNode.OutgoingGain = 0.5;
// Graph successfully created. Enable buttons to load files
fileButton1.IsEnabled = true;
fileButton2.IsEnabled = true;
}
// Create the AudioGraph
private async Task CreateAudioGraph()
{
// Create a new AudioGraph settings object to store the options, here you can play with latence/output device etc
AudioGraphSettings settings = new AudioGraphSettings(AudioRenderCategory.SoundEffects);
settings.QuantumSizeSelectionMode = QuantumSizeSelectionMode.ClosestToDesired;
settings.DesiredSamplesPerQuantum = desiredSamples;
settings.DesiredRenderDeviceAudioProcessing = Windows.Media.AudioProcessing.Default;
CreateAudioGraphResult result = await AudioGraph.CreateAsync(settings);
if (result.Status != AudioGraphCreationStatus.Success)
{
// Cannot create graph
ShowErrorMessage(string.Format("AudioGraph Creation Error because {0}", result.Status.ToString()));
return;
}
graph = result.Graph;
// Create a device input node using the default audio input device
CreateAudioDeviceInputNodeResult deviceInputNodeResult = await graph.CreateDeviceInputNodeAsync(MediaCategory.Other);
if (deviceInputNodeResult.Status != AudioDeviceNodeCreationStatus.Success)
{
// Cannot create device input node
ShowErrorMessage(string.Format("Audio Device Input unavailable because {0}", deviceInputNodeResult.Status.ToString()));
return;
}
deviceInputNode = deviceInputNodeResult.DeviceInputNode;
// Create the output node to send to data processing and add the event handler for when a quantum is processed
frameOutputNode = graph.CreateFrameOutputNode();
graph.QuantumProcessed += AudioGraph_QuantumProcessed;
// Link the nodes together
deviceInputNode.AddOutgoingConnection(frameOutputNode);
// Because we are using lowest latency setting, we need to handle device disconnection errors
graph.UnrecoverableErrorOccurred += Graph_UnrecoverableErrorOccurred;
}
private async Task InitAudioGraph()
{
var encodingProperties = AudioEncodingProperties.CreatePcm((uint) _samplingRate, 1, 16);
// Don't modify DesiredSamplesPerQuantum! If you do, change KQuantumSize accordingly!
var settings = new AudioGraphSettings(AudioRenderCategory.Communications)
{
EncodingProperties = encodingProperties
};
var result = await AudioGraph.CreateAsync(settings);
if (result.Status != AudioGraphCreationStatus.Success)
{
throw new Exception(result.Status.ToString());
}
_audioGraph = result.Graph;
}
/// <summary>
/// Required before starting recording
/// </summary>
/// <returns></returns>
private async Task<string> CreateAudioGraphAsync()
{
// var inputDevices = await DeviceInformation.FindAllAsync(MediaDevice.GetAudioCaptureSelector()); // LOLLO TEST
_outputDevices = await DeviceInformation.FindAllAsync(MediaDevice.GetAudioRenderSelector());
if (_outputDevices == null || _outputDevices.Count < 1)
{
return "AudioGraph Creation Error: no output devices found";
}
AudioGraphSettings settings = new AudioGraphSettings(AudioRenderCategory.Media)
{ QuantumSizeSelectionMode = QuantumSizeSelectionMode.LowestLatency, PrimaryRenderDevice = _outputDevices[0] };
CreateAudioGraphResult result = await AudioGraph.CreateAsync(settings);
if (result.Status != AudioGraphCreationStatus.Success)
{
// Cannot create graph
return string.Format("AudioGraph Creation Error because {0}", result.Status.ToString());
}
_audioGraph = result.Graph;
// Because we are using lowest latency setting, we need to handle device disconnection errors
_audioGraph.UnrecoverableErrorOccurred += OnGraph_UnrecoverableErrorOccurred;
//// Create a device output node // away, so we get no echo
//CreateAudioDeviceOutputNodeResult deviceOutputNodeResult = await _audioGraph.CreateDeviceOutputNodeAsync();
//if (deviceOutputNodeResult.Status != AudioDeviceNodeCreationStatus.Success)
//{
// // Cannot create device output node
// return string.Format("Audio Device Output unavailable because {0}", deviceOutputNodeResult.Status.ToString());
//}
//_deviceOutputNode = deviceOutputNodeResult.DeviceOutputNode;
// Create a device input node using the default audio input device
CreateAudioDeviceInputNodeResult deviceInputNodeResult = await _audioGraph.CreateDeviceInputNodeAsync(MediaCategory.Other);
if (deviceInputNodeResult.Status != AudioDeviceNodeCreationStatus.Success)
{
// Cannot create device input node
return string.Format("Audio Device Input unavailable because {0}", deviceInputNodeResult.Status.ToString());
}
_deviceInputNode = deviceInputNodeResult.DeviceInputNode;
//// LOLLO set the volume, rather useless coz it is like a mixer and the default value is 1.
//if (_deviceOutputNode.OutgoingGain < 1.0) _deviceOutputNode.OutgoingGain = 1.0;
//if (_deviceInputNode.OutgoingGain < 1.0) _deviceInputNode.OutgoingGain = 1.0;
return string.Empty;
}
private async Task CreateAudioGraph()
{
AudioGraphSettings settings = new AudioGraphSettings(AudioRenderCategory.Media);
settings.QuantumSizeSelectionMode = QuantumSizeSelectionMode.LowestLatency;
settings.PrimaryRenderDevice = outputDevices[outputDevicesListBox.SelectedIndex - 1];
CreateAudioGraphResult result = await AudioGraph.CreateAsync(settings);
if (result.Status != AudioGraphCreationStatus.Success)
{
// Cannot create graph
rootPage.NotifyUser(String.Format("AudioGraph Creation Error because {0}", result.Status.ToString()), NotifyType.ErrorMessage);
return;
}
graph = result.Graph;
rootPage.NotifyUser("Graph successfully created!", NotifyType.StatusMessage);
// Create a device output node
CreateAudioDeviceOutputNodeResult deviceOutputNodeResult = await graph.CreateDeviceOutputNodeAsync();
if (deviceOutputNodeResult.Status != AudioDeviceNodeCreationStatus.Success)
{
// Cannot create device output node
rootPage.NotifyUser(String.Format("Audio Device Output unavailable because {0}", deviceOutputNodeResult.Status.ToString()), NotifyType.ErrorMessage);
outputDeviceContainer.Background = new SolidColorBrush(Colors.Red);
return;
}
deviceOutputNode = deviceOutputNodeResult.DeviceOutputNode;
rootPage.NotifyUser("Device Output connection successfully created", NotifyType.StatusMessage);
outputDeviceContainer.Background = new SolidColorBrush(Colors.Green);
// Create a device input node using the default audio input device
CreateAudioDeviceInputNodeResult deviceInputNodeResult = await graph.CreateDeviceInputNodeAsync(MediaCategory.Other);
if (deviceInputNodeResult.Status != AudioDeviceNodeCreationStatus.Success)
{
// Cannot create device input node
rootPage.NotifyUser(String.Format("Audio Device Input unavailable because {0}", deviceInputNodeResult.Status.ToString()), NotifyType.ErrorMessage);
inputDeviceContainer.Background = new SolidColorBrush(Colors.Red);
return;
}
deviceInputNode = deviceInputNodeResult.DeviceInputNode;
rootPage.NotifyUser("Device Input connection successfully created", NotifyType.StatusMessage);
inputDeviceContainer.Background = new SolidColorBrush(Colors.Green);
// Since graph is successfully created, enable the button to select a file output
fileButton.IsEnabled = true;
// Disable the graph button to prevent accidental click
createGraphButton.IsEnabled = false;
// Because we are using lowest latency setting, we need to handle device disconnection errors
graph.UnrecoverableErrorOccurred += Graph_UnrecoverableErrorOccurred;
}
private void CreateAudioGraph()
{
// Create an AudioGraph with default settings
AudioGraphSettings settings = new AudioGraphSettings(AudioRenderCategory.Media);
CreateAudioGraphResult result = AudioGraph.CreateAsync(settings).GetResults();
if (result.Status != AudioGraphCreationStatus.Success)
{
// Cannot create graph
return;
}
graph = result.Graph;
// Create a device output node
CreateAudioDeviceOutputNodeResult deviceOutputResult = graph.CreateDeviceOutputNodeAsync().GetResults();
if (deviceOutputResult.Status != AudioDeviceNodeCreationStatus.Success)
{
// Cannot create device output
return;
}
deviceOutputNode = deviceOutputResult.DeviceOutputNode;
}
private async Task CreateAudioGraph()
{
// Create an AudioGraph with default settings
AudioGraphSettings settings = new AudioGraphSettings(AudioRenderCategory.Media);
CreateAudioGraphResult result = await AudioGraph.CreateAsync(settings);
if (result.Status != AudioGraphCreationStatus.Success)
{
// Cannot create graph
rootPage.NotifyUser(String.Format("AudioGraph Creation Error because {0}", result.Status.ToString()), NotifyType.ErrorMessage);
return;
}
graph = result.Graph;
// Create a device output node
CreateAudioDeviceOutputNodeResult deviceOutputNodeResult = await graph.CreateDeviceOutputNodeAsync();
if (deviceOutputNodeResult.Status != AudioDeviceNodeCreationStatus.Success)
{
// Cannot create device output node
rootPage.NotifyUser(String.Format("Audio Device Output unavailable because {0}", deviceOutputNodeResult.Status.ToString()), NotifyType.ErrorMessage);
speakerContainer.Background = new SolidColorBrush(Colors.Red);
}
deviceOutputNode = deviceOutputNodeResult.DeviceOutputNode;
rootPage.NotifyUser("Device Output Node successfully created", NotifyType.StatusMessage);
speakerContainer.Background = new SolidColorBrush(Colors.Green);
// Create the FrameInputNode at the same format as the graph, except explicitly set mono.
AudioEncodingProperties nodeEncodingProperties = graph.EncodingProperties;
nodeEncodingProperties.ChannelCount = 1;
frameInputNode = graph.CreateFrameInputNode(nodeEncodingProperties);
frameInputNode.AddOutgoingConnection(deviceOutputNode);
frameContainer.Background = new SolidColorBrush(Colors.Green);
// Initialize the Frame Input Node in the stopped state
frameInputNode.Stop();
// Hook up an event handler so we can start generating samples when needed
// This event is triggered when the node is required to provide data
frameInputNode.QuantumStarted += node_QuantumStarted;
// Start the graph since we will only start/stop the frame input node
graph.Start();
}
private async void initGraph() {
AudioGraphSettings settings = new AudioGraphSettings(AudioRenderCategory.Media);
CreateAudioGraphResult result = await AudioGraph.CreateAsync(settings);
graph = result.Graph;
// Create a device output node
CreateAudioDeviceOutputNodeResult deviceOutputNodeResult = await graph.CreateDeviceOutputNodeAsync();
deviceOutput = deviceOutputNodeResult.DeviceOutputNode;
FileOpenPicker filePicker = new FileOpenPicker();
filePicker.SuggestedStartLocation = PickerLocationId.MusicLibrary;
filePicker.FileTypeFilter.Add(".mp3");
filePicker.FileTypeFilter.Add(".wav");
StorageFile file = await GetPackagedFile(null, "audio.mp3");
CreateAudioFileInputNodeResult fileInputResult = await graph.CreateFileInputNodeAsync(file);
fileInput = fileInputResult.FileInputNode;
fileInput.AddOutgoingConnection(deviceOutput);
graph.Start();
}
