diff --git a/FFMpegCore/FFMPEG/Argument/ArgumentContainerFluentExtensions.cs b/FFMpegCore/FFMPEG/Argument/ArgumentContainerFluentExtensions.cs
index daf905c..8643804 100644
--- a/FFMpegCore/FFMPEG/Argument/ArgumentContainerFluentExtensions.cs
+++ b/FFMpegCore/FFMPEG/Argument/ArgumentContainerFluentExtensions.cs
@@ -16,15 +16,14 @@ public static ArgumentContainer AudioCodec(this ArgumentContainer container, Aud
             return container;
         }
 
-        public static ArgumentContainer AudioCodec(this ArgumentContainer container, AudioCodec codec, AudioQuality bitrate)
+        public static ArgumentContainer AudioBitrate(this ArgumentContainer container, AudioQuality audioQuality)
         {
-            container.Add(new AudioCodecArgument(codec, bitrate));
+            container.Add(new AudioBitrateArgument(audioQuality));
             return container;
         }
-
-        public static ArgumentContainer AudioCodec(this ArgumentContainer container, AudioCodec codec, int bitrate)
+        public static ArgumentContainer AudioBitrate(this ArgumentContainer container, int bitrate)
         {
-            container.Add(new AudioCodecArgument(codec, bitrate));
+            container.Add(new AudioBitrateArgument(bitrate));
             return container;
         }
 
diff --git a/FFMpegCore/FFMPEG/Argument/Atoms/CopyArgument.cs b/FFMpegCore/FFMPEG/Argument/Atoms/CopyArgument.cs
index 43153ef..dc72397 100644
--- a/FFMpegCore/FFMPEG/Argument/Atoms/CopyArgument.cs
+++ b/FFMpegCore/FFMPEG/Argument/Atoms/CopyArgument.cs
@@ -8,7 +8,6 @@ namespace FFMpegCore.FFMPEG.Argument
     /// </summary>
     public class CopyArgument : Argument<Channel>
     {
-        public CopyArgument() : base(Channel.Both) { }
         public CopyArgument(Channel value = Channel.Both) : base(value) { }
 
         /// <inheritdoc/>