diff --git a/VocaluxeLib/IBasic.cs b/VocaluxeLib/IBasic.cs
index ad09e6a2..de8162a8 100644
--- a/VocaluxeLib/IBasic.cs
+++ b/VocaluxeLib/IBasic.cs
@@ -208,6 +208,11 @@ namespace VocaluxeLib
     public interface IRecording
     {
         int GetToneAbs(int player);
+        void AnalyzeBuffer(int player);
+        float GetMaxVolume(int player);
+        float[] ToneWeigth(int player);
+        bool Start();
+        bool Stop();
     }
 
     public interface IProfiles