Try hooking up talking state to mute state

AudioWatcher.cs

@@ -1,20 +1,26 @@
 using NAudio.CoreAudioApi;
 using NAudio.CoreAudioApi.Interfaces;
-using System.Collections.Generic;
-using System.Linq;
 using Serilog;
+using System.Collections.Generic;
 
 namespace WorkIndicator;
 
+internal enum MicrophoneStatus
+{
+    NotUsed,
+    UsedMuted,
+    UsedNotMuted
+}
+
 internal class AudioWatcher : IMMNotificationClient
 {
     private readonly ILogger _logger = Log.ForContext<AudioWatcher>();
     private readonly MMDeviceEnumerator _deviceEnumerator = new();
     private readonly Dictionary<string, AudioDevice> _inputDevices = new();
 
-    public delegate void MicrophoneInUseChangedDelegate(bool microphoneInUse);
+    public delegate void MicrophoneStatusChangedDelegate(MicrophoneStatus microphoneStatus);
 
-    public event MicrophoneInUseChangedDelegate MicrophoneInUseChanged;
+    public event MicrophoneStatusChangedDelegate MicrophoneStatusChanged;
 
     public void Start()
     {
@@ -43,12 +49,12 @@ internal class AudioWatcher : IMMNotificationClient
 
         _inputDevices[captureDevice.ID] = audioDevice;
 
-        MicrophoneInUseChanged?.Invoke(MicrophoneInUse());
+        MicrophoneStatusChanged?.Invoke(GetMicrophoneStatus());
     }
 
     private void AudioDevice_AudioSessionsChanged()
     {
-        MicrophoneInUseChanged?.Invoke(MicrophoneInUse());
+        MicrophoneStatusChanged?.Invoke(GetMicrophoneStatus());
     }
 
     private void HandleRemovedDevice(string deviceId)
@@ -57,7 +63,7 @@ internal class AudioWatcher : IMMNotificationClient
 
         _inputDevices.Remove(deviceId);
 
-        MicrophoneInUseChanged?.Invoke(MicrophoneInUse());
+        MicrophoneStatusChanged?.Invoke(GetMicrophoneStatus());
     }
 
     public void Stop()
@@ -68,11 +74,15 @@ internal class AudioWatcher : IMMNotificationClient
         _deviceEnumerator.Dispose();
     }
 
-    public bool MicrophoneInUse()
+    public MicrophoneStatus GetMicrophoneStatus()
     {
-        var totalActiveSessionCount = _inputDevices.Sum(i => i.Value.ActiveSessionCount);
+        foreach (var inputDevice in _inputDevices.Values)
+        {
+            if (inputDevice.ActiveSessionCount > 0)
+                return inputDevice.IsMuted ? MicrophoneStatus.UsedMuted : MicrophoneStatus.UsedNotMuted;
+        }
 
-        return totalActiveSessionCount > 0;
+        return MicrophoneStatus.NotUsed;
     }
 
     void IMMNotificationClient.OnDeviceStateChanged(string deviceId, DeviceState newState)