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;
}
public virtual async void Initialize(CoreApplicationView applicationView)
{
DebugUtil.CheckAppThread();
applicationView.Activated += ApplicationView_Activated;
CoreApplication.Suspending += CoreApplication_Suspending;
// Setup scripting bridge
_Bridge = new WinRTBridge.WinRTBridge();
_AppCallbacks.SetBridge(_Bridge);
_AppCallbacks.SetCoreApplicationViewEvents(applicationView);
_audioGraphImpl = new AudioGraphImpl();
await _audioGraphImpl.InitializeAsync();
}
