Concrete class prototype

src/Discord.Net.Core/Audio/IAudioClient.cs

@@ -0,0 +1,23 @@
+using System;
+using System.IO;
+using System.Threading.Tasks;
+
+namespace Discord.Audio
+{
+    public interface IAudioClient
+    {
+        event Func<Task> Connected;
+        event Func<Exception, Task> Disconnected;
+        event Func<int, int, Task> LatencyUpdated;
+        
+        /// <summary> Gets the current connection state of this client. </summary>
+        ConnectionState ConnectionState { get; }
+        /// <summary> Gets the estimated round-trip latency, in milliseconds, to the gateway server. </summary>
+        int Latency { get; }
+
+        Task DisconnectAsync();
+
+        Stream CreateOpusStream(int samplesPerFrame, int bufferSize = 4000);
+        Stream CreatePCMStream(int samplesPerFrame, int? bitrate = null, OpusApplication application = OpusApplication.MusicOrMixed, int bufferSize = 4000);
+    }
+}

src/Discord.Net.Core/Audio/Opus/OpusApplication.cs

@@ -0,0 +1,9 @@
+namespace Discord.Audio
+{
+    public enum OpusApplication : int
+    {
+        Voice = 2048,
+        MusicOrMixed = 2049,
+        LowLatency = 2051
+    }
+}