Automatically toggle speaking boolean

src/Discord.Net.WebSocket/Audio/AudioClient.cs

@@ -239,7 +239,7 @@ namespace Discord.Audio
                                 throw new InvalidOperationException($"Discord selected an unexpected mode: {data.Mode}");
 
                             _secretKey = data.SecretKey;
-                            await ApiClient.SendSetSpeaking(true).ConfigureAwait(false);
+                            //await ApiClient.SendSetSpeaking(true).ConfigureAwait(false);
 
                             var _ = _connection.CompleteAsync();
                         }

src/Discord.Net.WebSocket/Audio/Streams/BufferedWriteStream.cs

@@ -78,6 +78,7 @@ namespace Discord.Audio.Streams
                             Frame frame;
                             if (_queuedFrames.TryDequeue(out frame))
                             {
+                                await _next.SetSpeakingAsync(true).ConfigureAwait(false);
                                 await _next.WriteAsync(frame.Buffer, 0, frame.Bytes).ConfigureAwait(false);
                                 _bufferPool.Enqueue(frame.Buffer);
                                 _queueLock.Release();
@@ -93,6 +94,8 @@ namespace Discord.Audio.Streams
                                 {
                                     if (_silenceFrames++ < MaxSilenceFrames)
                                         await _next.WriteAsync(_silenceFrame, 0, _silenceFrame.Length).ConfigureAwait(false);
+                                    else
+                                        await _next.SetSpeakingAsync(false).ConfigureAwait(false);
                                     nextTick += _ticksPerFrame;
                                 }
 #if DEBUG

src/Discord.Net.WebSocket/Audio/Streams/OutputStream.cs

@@ -6,6 +6,8 @@ namespace Discord.Audio.Streams
     ///<summary> Wraps an IAudioClient, sending voice data on write. </summary>
     public class OutputStream : AudioOutStream
     {
+        private bool _isSpeaking;
+
         private readonly DiscordVoiceAPIClient _client;
         public OutputStream(IAudioClient client)
             : this((client as AudioClient).ApiClient) { }
@@ -14,6 +16,14 @@ namespace Discord.Audio.Streams
             _client = client;
         }
 
+        public async Task SetSpeakingAsync(bool isSpeaking)
+        {
+            if (_isSpeaking != isSpeaking)
+            {
+                await _client.SendSetSpeaking(isSpeaking).ConfigureAwait(false);
+                _isSpeaking = isSpeaking;
+            }
+        }
         public override async Task WriteAsync(byte[] buffer, int offset, int count, CancellationToken cancelToken)
         {
             cancelToken.ThrowIfCancellationRequested();