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();
}
private async Task InitProcessorNode()
{
audioFrameProcessor = ag.CreateFrameOutputNode();
if (audioFrameProcessor != null)
{
rootPage.ShowLogs("Processor Node initialized successfully:");
ag.QuantumStarted += Ag_QuantumStarted;
}
}
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;
}
}
private async void File_Click(object sender, RoutedEventArgs e)
{
// If another file is already loaded into the FileInput node
if (fileInput != null)
{
// Release the file and dispose the contents of the node
fileInput.Dispose();
// Stop playback since a new file is being loaded. Also reset the button UI
if (graphButton.Content.Equals("Stop Graph"))
{
TogglePlay();
}
}
FileOpenPicker filePicker = new FileOpenPicker();
filePicker.SuggestedStartLocation = PickerLocationId.MusicLibrary;
filePicker.FileTypeFilter.Add(".mp3");
filePicker.FileTypeFilter.Add(".wav");
filePicker.FileTypeFilter.Add(".wma");
filePicker.FileTypeFilter.Add(".m4a");
filePicker.ViewMode = PickerViewMode.Thumbnail;
StorageFile file = await filePicker.PickSingleFileAsync();
// File can be null if cancel is hit in the file picker
if (file == null)
{
return;
}
CreateAudioFileInputNodeResult fileInputResult = await graph.CreateFileInputNodeAsync(file);
frameOutputNode = graph.CreateFrameOutputNode();
graph.QuantumProcessed += AudioGraph_QuantumProcessed;
if (AudioFileNodeCreationStatus.Success != fileInputResult.Status)
{
// Cannot read input file
rootPage.NotifyUser(String.Format("Cannot read input file because {0}", fileInputResult.Status.ToString()), NotifyType.ErrorMessage);
return;
}
fileInput = fileInputResult.FileInputNode;
fileInput.AddOutgoingConnection(deviceOutput, 0.5);
fileButton.Background = new SolidColorBrush(Colors.Green);
// Trim the file: set the start time to 3 seconds from the beginning
// fileInput.EndTime can be used to trim from the end of file
fileInput.StartTime = TimeSpan.FromSeconds(0);
// Enable buttons in UI to start graph, loop and change playback speed factor
graphButton.IsEnabled = true;
loopToggle.IsEnabled = true;
//playSpeedSlider.IsEnabled = true;
}
public async Task InitializeAsync()
{
DebugUtil.CheckAppThread();
AudioGraphSettings settings = new AudioGraphSettings(AudioRenderCategory.Media);
// settings.DesiredRenderDeviceAudioProcessing = AudioProcessing.Raw;
settings.QuantumSizeSelectionMode = QuantumSizeSelectionMode.LowestLatency;
CreateAudioGraphResult result = await AudioGraph.CreateAsync(settings);
DebugUtil.Assert(result.Status == AudioGraphCreationStatus.Success, "Failed to create audio graph");
_audioGraph = result.Graph;
int latencyInSamples = _audioGraph.LatencyInSamples;
// Create a device output node
CreateAudioDeviceOutputNodeResult deviceOutputNodeResult = _audioGraph.CreateDeviceOutputNodeAsync().GetResults();
DebugUtil.Assert(deviceOutputNodeResult.Status == AudioDeviceNodeCreationStatus.Success,
$"Audio Device Output unavailable because {deviceOutputNodeResult.Status}");
_deviceOutputNode = deviceOutputNodeResult.DeviceOutputNode;
_inputCaptureNode = _audioGraph.CreateFrameOutputNode(); // Create a device input node using the default audio input device
CreateAudioDeviceInputNodeResult deviceInputNodeResult = await _audioGraph.CreateDeviceInputNodeAsync(MediaCategory.Other);
DebugUtil.Assert(deviceInputNodeResult.Status == AudioDeviceNodeCreationStatus.Success,
$"Audio Device Input unavailable because {deviceInputNodeResult.Status}");
_deviceInputNode = deviceInputNodeResult.DeviceInputNode;
_deviceInputNode.AddOutgoingConnection(_inputCaptureNode);
_deviceInputNode.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;
}
private AudioFrameOutputNode AttachSpeechRecognitionMode(IAudioInputNode inputNode)
{
var speechRecognitionNode = graph.CreateFrameOutputNode(encoding.Audio);
graph.QuantumStarted += (AudioGraph sender, object args) =>
{
AudioFrame frame = speechRecognitionNode.GetFrame();
ProcessFrameOutput(frame);
};
inputNode.AddOutgoingConnection(speechRecognitionNode);
return(speechRecognitionNode);
}
public static async Task CreateDeviceInputNode()
{
Console.WriteLine("Creating AudioGraphs");
// Create an AudioGraph with default settings
AudioGraphSettings graphsettings = new AudioGraphSettings(AudioRenderCategory.GameChat);
graphsettings.EncodingProperties = new AudioEncodingProperties();
graphsettings.EncodingProperties.Subtype = "Float";
graphsettings.EncodingProperties.SampleRate = 48000;
graphsettings.EncodingProperties.ChannelCount = 2;
graphsettings.EncodingProperties.BitsPerSample = 32;
graphsettings.EncodingProperties.Bitrate = 3072000;
//settings.DesiredSamplesPerQuantum = 960;
//settings.QuantumSizeSelectionMode = QuantumSizeSelectionMode.ClosestToDesired;
CreateAudioGraphResult graphresult = await AudioGraph.CreateAsync(graphsettings);
if (graphresult.Status != AudioGraphCreationStatus.Success)
{
// Cannot create graph
return;
}
ingraph = graphresult.Graph;
AudioGraphSettings nodesettings = new AudioGraphSettings(AudioRenderCategory.GameChat);
nodesettings.EncodingProperties = AudioEncodingProperties.CreatePcm(48000, 2, 16);
nodesettings.DesiredSamplesPerQuantum = 960;
nodesettings.QuantumSizeSelectionMode = QuantumSizeSelectionMode.ClosestToDesired;
frameOutputNode = ingraph.CreateFrameOutputNode(outgraph.EncodingProperties);
quantum = 0;
ingraph.QuantumStarted += Graph_QuantumStarted;
Windows.Devices.Enumeration.DeviceInformation selectedDevice =
await Windows.Devices.Enumeration.DeviceInformation.CreateFromIdAsync(Windows.Media.Devices.MediaDevice.GetDefaultAudioCaptureId(Windows.Media.Devices.AudioDeviceRole.Default));
CreateAudioDeviceInputNodeResult result =
await ingraph.CreateDeviceInputNodeAsync(MediaCategory.Media, nodesettings.EncodingProperties, selectedDevice);
if (result.Status != AudioDeviceNodeCreationStatus.Success)
{
// Cannot create device output node
return;
}
deviceInputNode = result.DeviceInputNode;
deviceInputNode.AddOutgoingConnection(frameOutputNode);
frameOutputNode.Start();
ingraph.Start();
}
public async Task <bool> ResetAudioInput(DeviceInformation microphoneDevice = null)
{
if (microphoneDevice == null)
{
var inputDevices = await GetAllMicrophoneDevices();
if (inputDevices.Count == 0)
{
InputDeviceState = InputDeviceState.MicrophoneNotDetected;
return(false);
}
microphoneDevice = inputDevices[0];
}
var inputAudioEnocdingProperties = AudioEncodingProperties.CreatePcm(
OpusConvertConstants.SamplingRate,
1,
16
);
var deviceInputNodeCreateResult = await _AudioGraph.CreateDeviceInputNodeAsync(
Windows.Media.Capture.MediaCategory.GameChat,
inputAudioEnocdingProperties,
microphoneDevice
);
if (deviceInputNodeCreateResult.Status != AudioDeviceNodeCreationStatus.Success)
{
if (deviceInputNodeCreateResult.Status == AudioDeviceNodeCreationStatus.AccessDenied)
{
InputDeviceState = InputDeviceState.AccessDenied;
}
else
{
InputDeviceState = InputDeviceState.UnknowunError;
}
return(false);
}
_InputNode = deviceInputNodeCreateResult.DeviceInputNode;
_FrameOutputNode = _AudioGraph.CreateFrameOutputNode(inputAudioEnocdingProperties);
_InputNode.AddOutgoingConnection(_FrameOutputNode);
InputDeviceState = InputDeviceState.Avairable;
return(true);
}
private async Task CreateAudioGraph()
{
// Create an AudioGraph with default settings
AudioGraphSettings settings = new AudioGraphSettings(AudioRenderCategory.Media);
settings.QuantumSizeSelectionMode = QuantumSizeSelectionMode.LowestLatency;
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);
// Create a device input node using the default audio input device
CreateAudioDeviceInputNodeResult deviceInputNodeResult = await _graph.CreateDeviceInputNodeAsync(MediaCategory.Media);
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);
return;
}
_deviceInputNode = deviceInputNodeResult.DeviceInputNode;
var frameOutputNode = _graph.CreateFrameOutputNode();
_graph.QuantumProcessed += AudioGraph_QuantumProcessed;
_deviceInputNode.AddOutgoingConnection(frameOutputNode);
}
private async Task LoadAudioFromFile(StorageFile file)
{
// We initialize an instance of AudioGraph
AudioGraphSettings settings =
new AudioGraphSettings(
Windows.Media.Render.AudioRenderCategory.Media
);
CreateAudioGraphResult result1 = await AudioGraph.CreateAsync(settings);
if (result1.Status != AudioGraphCreationStatus.Success)
{
ShowMessage("AudioGraph creation error: " + result1.Status.ToString());
}
audioGraph = result1.Graph;
if (audioGraph == null)
return;
// We initialize FileInputNode
CreateAudioFileInputNodeResult result2 =
await audioGraph.CreateFileInputNodeAsync(file);
if (result2.Status != AudioFileNodeCreationStatus.Success)
{
ShowMessage("FileInputNode creation error: " + result2.Status.ToString());
}
fileInputNode = result2.FileInputNode;
if (fileInputNode == null)
return;
// We read audio file encoding properties to pass them to FrameOutputNode creator
AudioEncodingProperties audioEncodingProperties = fileInputNode.EncodingProperties;
// We initialize FrameOutputNode and connect it to fileInputNode
frameOutputNode = audioGraph.CreateFrameOutputNode(audioEncodingProperties);
fileInputNode.AddOutgoingConnection(frameOutputNode);
// We add a handler achiving the end of a file
fileInputNode.FileCompleted += FileInput_FileCompleted;
// We add a handler which will transfer every audio frame into audioData
audioGraph.QuantumStarted += AudioGraph_QuantumStarted;
// We initialize audioData
int numOfSamples = (int)Math.Ceiling(
(decimal)0.0000001
* fileInputNode.Duration.Ticks
* fileInputNode.EncodingProperties.SampleRate
);
audioData = new float[numOfSamples];
audioDataCurrentPosition = 0;
// We start process which will read audio file frame by frame
// and will generated events QuantumStarted when a frame is in memory
audioGraph.Start();
}
public async Task Start()
{
try
{
m_mutex.WaitOne();
// Construct the audio graph
var result = await AudioGraph.CreateAsync(
new AudioGraphSettings(AudioRenderCategory.Speech)
{
DesiredRenderDeviceAudioProcessing = AudioProcessing.Raw,
AudioRenderCategory = AudioRenderCategory.Speech
});
if (result.Status != AudioGraphCreationStatus.Success)
{
throw new Exception("AudioGraph creation error: " + result.Status);
}
m_audioGraph = result.Graph;
var pcmEncoding = AudioEncodingProperties.CreatePcm(16000, 1, 32);
m_frameOutputNode = m_audioGraph.CreateFrameOutputNode(pcmEncoding);
var encodingProperties = m_frameOutputNode.EncodingProperties;
encodingProperties = m_audioGraph.EncodingProperties;
var inputResult = await m_audioGraph.CreateDeviceInputNodeAsync(MediaCategory.Speech, pcmEncoding);
if (inputResult.Status != AudioDeviceNodeCreationStatus.Success)
{
throw new Exception("AudioGraph CreateDeviceInputNodeAsync error: " + inputResult.Status);
}
m_deviceInputNode = inputResult.DeviceInputNode;
m_deviceInputNode.AddOutgoingConnection(m_frameOutputNode);
m_audioGraph.QuantumStarted += node_QuantumStarted;
encodingProperties = m_audioGraph.EncodingProperties;
m_audioGraph.Start();
}
catch (Exception ex)
{
Utils.Toasts.ShowToast("", "AudioInput Start Exception: " + ex.Message);
}
m_mutex.ReleaseMutex();
}
private async void StartButton_Click(object sender, RoutedEventArgs e)
{
DeviceInformation SelectedDevice = DevicesBox.SelectedItem as DeviceInformation;
AudioGraphSettings settings = new AudioGraphSettings(AudioRenderCategory.Media)
{
QuantumSizeSelectionMode = QuantumSizeSelectionMode.LowestLatency
};
CreateAudioGraphResult result = await AudioGraph.CreateAsync(settings);
graph = result.Graph;
// Create a device output node
CreateAudioDeviceOutputNodeResult deviceOutputNodeResult = await graph.CreateDeviceOutputNodeAsync();
AudioDeviceOutputNode deviceOutputNode = deviceOutputNodeResult.DeviceOutputNode;
// Create a device input node using the default audio input device
CreateAudioDeviceInputNodeResult deviceInputNodeResult = await graph.CreateDeviceInputNodeAsync(MediaCategory.Other, graph.EncodingProperties, SelectedDevice);
if (deviceInputNodeResult.Status != AudioDeviceNodeCreationStatus.Success)
{
// Cannot create device input node
System.Diagnostics.Debug.WriteLine(String.Format("Audio Device Input unavailable because {0}", deviceInputNodeResult.Status.ToString()));
return;
}
AudioDeviceInputNode deviceInputNode = deviceInputNodeResult.DeviceInputNode;
frameOutputNode = graph.CreateFrameOutputNode();
deviceInputNode.AddOutgoingConnection(frameOutputNode);
AudioFrameInputNode frameInputNode = graph.CreateFrameInputNode();
frameInputNode.AddOutgoingConnection(deviceOutputNode);
// Attach to QuantumStarted event in order to receive synchronous updates from audio graph (to capture incoming audio).
graph.QuantumStarted += GraphOnQuantumProcessed;
graph.Start();
}
private async void CreateAudioGraphAsync()
{
AudioGraphSettings settings = new AudioGraphSettings(AudioRenderCategory.Media)
{
//settings.DesiredSamplesPerQuantum = fftLength;
DesiredRenderDeviceAudioProcessing = AudioProcessing.Default,
QuantumSizeSelectionMode = QuantumSizeSelectionMode.ClosestToDesired
};
CreateAudioGraphResult graphResult = await AudioGraph.CreateAsync(settings);
if (graphResult.Status != AudioGraphCreationStatus.Success)
{
throw new InvalidOperationException($"Graph creation failed {graphResult.Status}");
}
_graph = graphResult.Graph;
//CreateAudioDeviceInputNodeResult inputNodeResult = await _graph.CreateDeviceInputNodeAsync(MediaCategory.Media);
CreateAudioDeviceInputNodeResult inputNodeResult = await _graph.CreateDeviceInputNodeAsync(MediaCategory.Other);
if (inputNodeResult.Status == AudioDeviceNodeCreationStatus.Success)
{
_inputNode = inputNodeResult.DeviceInputNode;
_frameOutputNode = _graph.CreateFrameOutputNode();
_inputNode.AddOutgoingConnection(_frameOutputNode);
_frameOutputNode.Start();
_graph.QuantumProcessed += AudioGraph_QuantumProcessed;
// Because we are using lowest latency setting, we need to handle device disconnection errors
_graph.UnrecoverableErrorOccurred += Graph_UnrecoverableErrorOccurred;
_graph.Start();
}
else
{
MessageDialog md = new MessageDialog("Cannot access microphone");
await md.ShowAsync();
}
}
/// <summary>
/// Tyrs to creates the frame output node and trys to set the outgoing connection to it. Also calculates audioFrameUpdateMinimum.
/// </summary>
/// <returns>Whether or not the attempt was successful</returns>
private static async Task <bool> CreateNodes()
{
try
{
CreateAudioDeviceInputNodeResult deviceInputNodeResult = await graph.CreateDeviceInputNodeAsync(MediaCategory.Other);
deviceInputNode = deviceInputNodeResult.DeviceInputNode;
frameOutputNode = graph.CreateFrameOutputNode(graph.EncodingProperties);
graph.QuantumStarted += Graph_QuantumStarted;
audioFrameUpdateMinimum = Convert.ToInt32(samplesPerQuantumLimit / graph.SamplesPerQuantum);
deviceInputNode.AddOutgoingConnection(frameOutputNode);
return(true);
}
catch (Exception)
{
return(false);
}
}
private async void Init()
{
AudioGraphSettings settings = new AudioGraphSettings(AudioRenderCategory.Media);
settings.QuantumSizeSelectionMode = QuantumSizeSelectionMode.LowestLatency;
CreateAudioGraphResult result = await AudioGraph.CreateAsync(settings);
if (result.Status != AudioGraphCreationStatus.Success)
{
mainPage.MessageBox("Could not create input device for Mic To MIDI!");
return;
}
audioGraph = result.Graph;
CreateAudioDeviceInputNodeResult deviceInputNodeResult = await audioGraph.CreateDeviceInputNodeAsync(MediaCategory.Other);
if (deviceInputNodeResult.Status != AudioDeviceNodeCreationStatus.Success)
{
mainPage.MessageBox(String.Format("Audio Device Input unavailable because {0}", deviceInputNodeResult.Status.ToString()));
return;
}
deviceInputNode = deviceInputNodeResult.DeviceInputNode;
frameOutputNode = audioGraph.CreateFrameOutputNode();
deviceInputNode.AddOutgoingConnection(frameOutputNode);
//audioGraph.QuantumStarted += AudioGraph_QuantumStarted;
audioGraph.Start();
deviceInputNode.Start();
frameOutputNode.Start();
timer = new DispatcherTimer();
timer.Interval = new TimeSpan(0, 0, 0, 0, 1); // 1 ms
timer.Tick += Timer_Tick;
timer.Start();
periodLengthUK101 = 0;
}
public async Task Start()
{
var pcmEncoding = AudioEncodingProperties.CreatePcm(16000, 1, 16);
// Construct the audio graph
// mic -> Machine Translate Service
// Machine Translation text to speech output -> speaker
var result = await AudioGraph.CreateAsync(
new AudioGraphSettings(AudioRenderCategory.Speech)
{
DesiredRenderDeviceAudioProcessing = AudioProcessing.Raw,
AudioRenderCategory = AudioRenderCategory.Speech,
EncodingProperties = pcmEncoding
});
if (result.Status != AudioGraphCreationStatus.Success)
{
throw new Exception("AudioGraph creation error: " + result.Status);
}
m_audioGraph = result.Graph;
m_frameOutputNode = m_audioGraph.CreateFrameOutputNode(pcmEncoding);
var inputResult = await m_audioGraph.CreateDeviceInputNodeAsync(MediaCategory.Speech, pcmEncoding);
if (inputResult.Status != AudioDeviceNodeCreationStatus.Success)
{
throw new Exception("AudioGraph CreateDeviceInputNodeAsync error: " + result.Status);
}
m_deviceInputNode = inputResult.DeviceInputNode;
m_deviceInputNode.AddOutgoingConnection(m_frameOutputNode);
m_audioGraph.QuantumStarted += node_QuantumStarted;
m_audioGraph.Start();
}
//</SnippetGenerateAudioData>
//<SnippetCreateFrameOutputNode>
private void CreateFrameOutputNode()
{
frameOutputNode = audioGraph.CreateFrameOutputNode();
audioGraph.QuantumProcessed += AudioGraph_QuantumProcessed;
}
private async Task Play()
{
if (IsPlaying)
{
Pause();
return;
}
if (_audioGraph == null)
{
var settings = new AudioGraphSettings(AudioRenderCategory.Media)
{
PrimaryRenderDevice = SelectedDevice
};
var createResult = await AudioGraph.CreateAsync(settings);
if (createResult.Status != AudioGraphCreationStatus.Success)
{
return;
}
_audioGraph = createResult.Graph;
_audioGraph.UnrecoverableErrorOccurred += OnAudioGraphError;
}
if (_deviceOutputNode == null)
{
var deviceResult = await _audioGraph.CreateDeviceOutputNodeAsync();
if (deviceResult.Status != AudioDeviceNodeCreationStatus.Success)
{
return;
}
_deviceOutputNode = deviceResult.DeviceOutputNode;
}
if (_frameOutputNode == null)
{
_frameOutputNode = _audioGraph.CreateFrameOutputNode();
_audioGraph.QuantumProcessed += GraphOnQuantumProcessed;
}
if (_fileInputNode == null)
{
if (CurrentPlayingFile == null)
{
return;
}
var fileResult = await _audioGraph.CreateFileInputNodeAsync(CurrentPlayingFile);
if (fileResult.Status != AudioFileNodeCreationStatus.Success)
{
return;
}
_fileInputNode = fileResult.FileInputNode;
_fileInputNode.AddOutgoingConnection(_deviceOutputNode);
_fileInputNode.AddOutgoingConnection(_frameOutputNode);
Duration = _fileInputNode.Duration;
_fileInputNode.PlaybackSpeedFactor = PlaybackSpeed / 100.0;
_fileInputNode.OutgoingGain = Volume / 100.0;
_fileInputNode.FileCompleted += FileInputNodeOnFileCompleted;
}
Debug.WriteLine($" CompletedQuantumCount: {_audioGraph.CompletedQuantumCount}");
Debug.WriteLine($"SamplesPerQuantum: {_audioGraph.SamplesPerQuantum}");
Debug.WriteLine($"LatencyInSamples: {_audioGraph.LatencyInSamples}");
var channelCount = (int)_audioGraph.EncodingProperties.ChannelCount;
_fftProvider = new FftProvider(channelCount, FftSize.Fft2048);
_audioGraph.Start();
IsPlaying = true;
}
LoadAudioFromFile(
StorageFile file,
IProgress <string> status)
{
_finished = false;
status.Report("Reading audio file");
// Initialize FileInputNode
var inputNodeCreationResult =
await _audioGraph.CreateFileInputNodeAsync(file);
if (inputNodeCreationResult.Status != AudioFileNodeCreationStatus.Success)
{
return(inputNodeCreationResult);
}
_fileInputNode = inputNodeCreationResult.FileInputNode;
// Read audio file encoding properties to pass them
//to FrameOutputNode creator
var audioEncodingProperties =
_fileInputNode.EncodingProperties;
// Initialize FrameOutputNode and connect it to fileInputNode
_frameOutputNode = _audioGraph.CreateFrameOutputNode(
audioEncodingProperties
);
_frameOutputNode.Stop();
_fileInputNode.AddOutgoingConnection(_frameOutputNode);
// Add a handler for achiving the end of a file
_fileInputNode.FileCompleted += FileInput_FileCompleted;
// Add a handler which will transfer every audio frame into audioData
_audioGraph.QuantumStarted += FileInput_QuantumStarted;
// Initialize audioData
var numOfSamples = (int)Math.Ceiling(
(decimal)0.0000001
* _fileInputNode.Duration.Ticks
* _fileInputNode.EncodingProperties.SampleRate
);
if (audioEncodingProperties.ChannelCount == 1)
{
SetAudioData(new AudioDataMono(new float[numOfSamples]));
}
else
{
SetAudioData(new AudioDataStereo(new float[numOfSamples],
new float[numOfSamples]));
}
_audioDataCurrentPosition = 0;
// Start process which will read audio file frame by frame
// and will generated events QuantumStarted when a frame is in memory
_audioGraph.Start();
// didn't find a better way to wait for data
while (!_finished)
{
await Task.Delay(50);
}
// crear status line
status.Report("");
return(inputNodeCreationResult);
}
/// <summary>
/// Create input audio graph
/// </summary>
/// <param name="deviceId">Override for default input device id</param>
public static async Task <bool> CreateInputDeviceNode(string deviceId = null)
{
// If not in use, redo dispose
if (ingraph != null && deviceId != InputDeviceID)
{
HeavyDisposeInGraph();
}
// Increment use counter
else
{
inGraphCount++;
}
Console.WriteLine("Creating AudioGraphs");
// Create an AudioGraph with default settings
AudioGraphSettings graphsettings = new AudioGraphSettings(AudioRenderCategory.Media);
graphsettings.EncodingProperties = new AudioEncodingProperties();
graphsettings.EncodingProperties.Subtype = "Float";
graphsettings.EncodingProperties.SampleRate = 48000;
graphsettings.EncodingProperties.ChannelCount = 2;
graphsettings.EncodingProperties.BitsPerSample = 32;
graphsettings.EncodingProperties.Bitrate = 3072000;
CreateAudioGraphResult graphresult = await AudioGraph.CreateAsync(graphsettings);
if (graphresult.Status != AudioGraphCreationStatus.Success)
{
// Cannot create graph
inGraphCount--;
LocalState.VoiceState.SelfMute = true;
VoiceManager.lockMute = true;
return(false);
}
// "Save" graph
ingraph = graphresult.Graph;
// Create frameOutputNode
AudioGraphSettings nodesettings = new AudioGraphSettings(AudioRenderCategory.GameChat);
nodesettings.EncodingProperties = AudioEncodingProperties.CreatePcm(48000, 2, 32);
nodesettings.DesiredSamplesPerQuantum = 960;
nodesettings.QuantumSizeSelectionMode = QuantumSizeSelectionMode.ClosestToDesired;
frameOutputNode = ingraph.CreateFrameOutputNode(ingraph.EncodingProperties);
quantum = 0;
ingraph.QuantumStarted += Graph_QuantumStarted;
// Determine selected device
DeviceInformation selectedDevice;
if (deviceId == "Default" || deviceId == null)
{
string device = Windows.Media.Devices.MediaDevice.GetDefaultAudioCaptureId(Windows.Media.Devices.AudioDeviceRole.Default);
if (!string.IsNullOrEmpty(device))
{
selectedDevice = await DeviceInformation.CreateFromIdAsync(device);
Windows.Media.Devices.MediaDevice.DefaultAudioCaptureDeviceChanged += MediaDevice_DefaultAudioCaptureDeviceChanged;
}
else
{
inGraphCount--;
LocalState.VoiceState.SelfMute = true;
VoiceManager.lockMute = true;
return(false);
}
}
else
{
try
{
selectedDevice = await DeviceInformation.CreateFromIdAsync(deviceId);
}
catch
{
selectedDevice = await DeviceInformation.CreateFromIdAsync(Windows.Media.Devices.MediaDevice.GetDefaultAudioCaptureId(Windows.Media.Devices.AudioDeviceRole.Default));
deviceId = "Default";
}
}
CreateAudioDeviceInputNodeResult result =
await ingraph.CreateDeviceInputNodeAsync(MediaCategory.Media, nodesettings.EncodingProperties, selectedDevice);
if (result.Status != AudioDeviceNodeCreationStatus.Success)
{
// Cannot create device output node
inGraphCount--;
LocalState.VoiceState.SelfMute = true;
VoiceManager.lockMute = true;
return(false);
}
// Attach input device
deviceInputNode = result.DeviceInputNode;
deviceInputNode.AddOutgoingConnection(frameOutputNode);
InputDeviceID = deviceId;
// Begin playing
frameOutputNode.Start();
ingraph.Start();
return(true);
}
protected override async void OnNavigatedTo(NavigationEventArgs e)
{
var audioInputDevices = await DeviceInformation.FindAllAsync(DeviceClass.AudioCapture);
foreach (var device in audioInputDevices)
{
if (device.Name.ToLower().Contains("usb"))
{
audioInput = device;
break;
}
}
if (audioInput == null)
{
Debug.WriteLine("Could not find USB audio card");
return;
}
var audioOutputDevices = await DeviceInformation.FindAllAsync(DeviceClass.AudioRender);
foreach (var device in audioOutputDevices)
{
if (device.Name.ToLower().Contains("usb"))
{
audioOutput = device;
}
else
{
raspiAudioOutput = device;
}
}
if (audioOutput == null)
{
Debug.WriteLine("Could not find USB audio card");
return;
}
// Set up LED strips
await leftStrip.Begin();
await rightStrip.Begin();
//await AudioTest();
AudioGraphSettings audioGraphSettings = new AudioGraphSettings(AudioRenderCategory.Media);
audioGraphSettings.DesiredSamplesPerQuantum = 440;
audioGraphSettings.DesiredRenderDeviceAudioProcessing = AudioProcessing.Default;
audioGraphSettings.QuantumSizeSelectionMode = QuantumSizeSelectionMode.ClosestToDesired;
audioGraphSettings.PrimaryRenderDevice = raspiAudioOutput;
CreateAudioGraphResult audioGraphResult = await AudioGraph.CreateAsync(audioGraphSettings);
if (audioGraphResult.Status != AudioGraphCreationStatus.Success)
{
Debug.WriteLine("AudioGraph creation failed! " + audioGraphResult.Status);
return;
}
audioGraph = audioGraphResult.Graph;
//Debug.WriteLine(audioGraph.SamplesPerQuantum);
CreateAudioDeviceInputNodeResult inputNodeResult = await audioGraph.CreateDeviceInputNodeAsync(MediaCategory.Media, audioGraph.EncodingProperties, audioInput);
if (inputNodeResult.Status != AudioDeviceNodeCreationStatus.Success)
{
Debug.WriteLine("AudioDeviceInputNode creation failed! " + inputNodeResult.Status);
return;
}
AudioDeviceInputNode inputNode = inputNodeResult.DeviceInputNode;
CreateAudioDeviceOutputNodeResult outputNodeResult = await audioGraph.CreateDeviceOutputNodeAsync();
if (outputNodeResult.Status != AudioDeviceNodeCreationStatus.Success)
{
Debug.WriteLine("AudioDeviceOutputNode creation failed!" + outputNodeResult.Status);
}
AudioDeviceOutputNode outputNode = outputNodeResult.DeviceOutputNode;
frameOutputNode = audioGraph.CreateFrameOutputNode();
inputNode.AddOutgoingConnection(frameOutputNode);
inputNode.AddOutgoingConnection(outputNode);
cube.SetSpeedStripLedColors(LedColorLists.rainbowColors);
audioGraph.QuantumProcessed += AudioGraph_QuantumProcessed;
audioGraph.UnrecoverableErrorOccurred += AudioGraph_UnrecoverableErrorOccurred;
audioGraph.Start();
outputNode.Start();
inputNode.Start();
frameOutputNode.Start();
cube.Reset();
cube.Update();
//await MathFunc();
//cube.ApplyColorFunction((x, y, z) =>
//{
// Color c = Color.FromArgb(255,
// (byte)((x / 14.0) * 255.0),
// (byte)((y / 14.0) * 255.0),
// (byte)((z / 14.0) * 255.0));
// return c;
//});
//cube.SetLedColors();
//cube.Update();
//cube.bottomFrontEdge.SetColor(Colors.Red);
//cube.bottomRightEdge.SetColor(Colors.OrangeRed);
//cube.bottomBackEdge.SetColor(Colors.Yellow);
//cube.bottomLeftEdge.SetColor(Colors.Green);
//cube.frontLeftEdge.SetColor(Colors.Blue);
//cube.frontTopEdge.SetColor(Colors.Purple);
//cube.rightLeftEdge.Brightness = 10;
//cube.rightLeftEdge.SetColor(Colors.Red);
//cube.rightTopEdge.Brightness = 10;
//cube.rightTopEdge.SetColor(Colors.OrangeRed);
//cube.backLeftEdge.Brightness = 10;
//cube.backLeftEdge.SetColor(Colors.Yellow);
//cube.backTopEdge.Brightness = 10;
//cube.backTopEdge.SetColor(Colors.Green);
//cube.leftLeftEdge.Brightness = 10;
//cube.leftLeftEdge.SetColor(Colors.Blue);
//cube.leftTopEdge.Brightness = 10;
//cube.leftTopEdge.SetColor(Colors.Purple);
//cube.Update();
//await RainbowTest();
//cube.Brightness = 30;
//await FlashTest();
//SetAll();
//await FadeTest();
//cube.Reset();
//cube.Update();
//await cube.rightLeftEdge.DoLine();
//ZackTest();
}
private void CreateFrameOutputNode()
{
_frameOutputNode = _audioGraph.CreateFrameOutputNode();
_audioGraph.QuantumStarted += AudioGraph_QuantumStarted;
}
private void CreateToxOutputNode()
{
_toxOutputNode = _audioGraph.CreateFrameOutputNode();
_audioGraph.QuantumProcessed += AudioGraphQuantumProcessedHandler;
_microphoneInputNode.AddOutgoingConnection(_toxOutputNode);
}
// 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;
}
