Ensured that device selection in demos use exact constraint.

Author: KristofferStrube

samples/KristofferStrube.Blazor.WebAudio.WasmExample/AudioEditor/Nodes/MediaStreamAudioSource.cs

@@ -36,8 +36,12 @@ public async Task SetMediaStreamAudioSourceNode(AudioContext context)
             NoiseSuppression = NoiseSuppresion,
             EchoCancellation = EchoCancellation,
             AutoGainControl = false,
-            DeviceId = SelectedAudioSource is null ? null : new ConstrainDomString(SelectedAudioSource)
         };
+        if (SelectedAudioSource is not null)
+        {
+            mediaTrackConstraints.DeviceId = new ConstrainDOMStringParameters() { Exact = SelectedAudioSource };
+        }
+
         MediaStream mediaStream = await mediaDevices.GetUserMediaAsync(new MediaStreamConstraints() { Audio = mediaTrackConstraints });
 
         MediaDeviceInfo[] deviceInfos = await mediaDevices.EnumerateDevicesAsync();

samples/KristofferStrube.Blazor.WebAudio.WasmExample/Pages/AnalyzeMediaStream.razor

@@ -76,8 +76,13 @@ else
                     EchoCancellation = true,
                     NoiseSuppression = true,
                     AutoGainControl = false,
-                    DeviceId = selectedAudioSource is null ? null : new ConstrainDomString(selectedAudioSource)
                 };
+
+            if (selectedAudioSource is not null)
+            {
+                mediaTrackConstraints.DeviceId = new ConstrainDOMStringParameters() { Exact = selectedAudioSource };
+            }
+
             mediaStream = await mediaDevices.GetUserMediaAsync(new MediaStreamConstraints() { Audio = mediaTrackConstraints });
 
             var deviceInfos = await mediaDevices.EnumerateDevicesAsync();

samples/KristofferStrube.Blazor.WebAudio.WasmExample/Pages/ApplyFilter.razor

@@ -83,8 +83,12 @@ else
                     EchoCancellation = true,
                     NoiseSuppression = true,
                     AutoGainControl = false,
-                    DeviceId = selectedAudioSource is null ? null : new ConstrainDomString(selectedAudioSource)
                 };
+            if (selectedAudioSource is not null)
+            {
+                mediaTrackConstraints.DeviceId = new ConstrainDOMStringParameters() { Exact = selectedAudioSource };
+            }
+
             mediaStream = await mediaDevices.GetUserMediaAsync(new MediaStreamConstraints() { Audio = mediaTrackConstraints });
 
             var deviceInfos = await mediaDevices.EnumerateDevicesAsync();

samples/KristofferStrube.Blazor.WebAudio.WasmExample/Pages/RecordMediaStream.razor

@@ -120,8 +120,12 @@ else
                     EchoCancellation = true,
                     NoiseSuppression = true,
                     AutoGainControl = false,
-                    DeviceId = selectedAudioSource is null ? null : new ConstrainDomString(selectedAudioSource)
                 };
+            if (selectedAudioSource is not null)
+            {
+                mediaTrackConstraints.DeviceId = new ConstrainDOMStringParameters() { Exact = selectedAudioSource };
+            }
+
             mediaStream = await mediaDevices.GetUserMediaAsync(new MediaStreamConstraints() { Audio = mediaTrackConstraints });
 
             var deviceInfos = await mediaDevices.EnumerateDevicesAsync();