diff --git a/ScreenCaptureLib/Screencast/FFmpegOptions.cs b/ScreenCaptureLib/Screencast/FFmpegOptions.cs
index 84ef38d1d..55ece17da 100644
--- a/ScreenCaptureLib/Screencast/FFmpegOptions.cs
+++ b/ScreenCaptureLib/Screencast/FFmpegOptions.cs
@@ -78,10 +78,10 @@ public FFmpegOptions()
             // XviD
             XviD_qscale = 3;
 
-            // Vorbis
+            // Audio
             Vorbis_qscale = 3;
             MP3_qscale = 4;
-            AAC_bitrate = 64;
+            AAC_bitrate = 128;
         }
 
         public bool IsAudioSourceSelected()
diff --git a/ScreenCaptureLib/Screencast/FFmpegOptionsForm.cs b/ScreenCaptureLib/Screencast/FFmpegOptionsForm.cs
index 3d9af9baa..16d85f14d 100644
--- a/ScreenCaptureLib/Screencast/FFmpegOptionsForm.cs
+++ b/ScreenCaptureLib/Screencast/FFmpegOptionsForm.cs
@@ -176,8 +176,6 @@ public void UpdateExtensions()
 
             cbExtension.Items.Add("avi");
             cbExtension.SelectedIndex = 0;
-
-            tcFFmpegVideoCodecs.SelectedIndex = (int)Options.FFmpeg.VideoCodec;
         }
 
         private void UpdateUI()
diff --git a/ScreenCaptureLib/Screencast/FFmpegOptionsForm.resx b/ScreenCaptureLib/Screencast/FFmpegOptionsForm.resx
index 93beca915..0839679e7 100644
--- a/ScreenCaptureLib/Screencast/FFmpegOptionsForm.resx
+++ b/ScreenCaptureLib/Screencast/FFmpegOptionsForm.resx
@@ -121,8 +121,8 @@
     <value>17, 17</value>
   </metadata>
   <data name="nudx264CRF.ToolTip" xml:space="preserve">
-    <value>Constant Rate Factor (CRF): The range of the quantizer scale is 0-51: where 0 is lossless, 23 is default, and 51 is worst possible. 
-A lower value is a higher quality and a subjectively sane range is 18-28. 
+    <value>Constant Rate Factor (CRF): The range of the quantizer scale is 0-51: where 0 is lossless, 23 is default, and 51 is worst possible.
+A lower value is a higher quality and a subjectively sane range is 18-28.
 Consider 18 to be visually lossless or nearly so: it should look the same or nearly the same as the input but it isn't technically lossless.</value>
   </data>
 </root>
\ No newline at end of file
diff --git a/ScreenCaptureLib/Screencast/ScreencastOptions.cs b/ScreenCaptureLib/Screencast/ScreencastOptions.cs
index 92d7d3ea0..0c3c4137c 100644
--- a/ScreenCaptureLib/Screencast/ScreencastOptions.cs
+++ b/ScreenCaptureLib/Screencast/ScreencastOptions.cs
@@ -124,10 +124,17 @@ public string GetFFmpegArgs()
 
             if (FFmpeg.IsAudioSourceSelected())
             {
-                string audioString = GetAudioString();
-                if (!string.IsNullOrEmpty(audioString))
+                switch (FFmpeg.AudioCodec)
                 {
-                    args.Append(audioString);
+                    case FFmpegAudioCodec.libvorbis: // http://trac.ffmpeg.org/wiki/TheoraVorbisEncodingGuide
+                        args.AppendFormat("-c:a {0} -qscale:a {1} ", FFmpegAudioCodec.libvorbis.ToString(), FFmpeg.Vorbis_qscale);
+                        break;
+                    case FFmpegAudioCodec.libmp3lame: // http://trac.ffmpeg.org/wiki/Encoding%20VBR%20(Variable%20Bit%20Rate)%20mp3%20audio
+                        args.AppendFormat("-c:a {0} -qscale:a {1} ", FFmpegAudioCodec.libmp3lame.ToString(), FFmpeg.MP3_qscale);
+                        break;
+                    case FFmpegAudioCodec.libvoaacenc: // http://trac.ffmpeg.org/wiki/AACEncodingGuide
+                        args.AppendFormat("-ac 2 -c:a libvo_aacenc -b:a {0}k ", FFmpeg.AAC_bitrate); // -ac 2 required otherwise failing with 7.1
+                        break;
                 }
             }
 
@@ -143,25 +150,5 @@ public string GetFFmpegArgs()
 
             return args.ToString();
         }
-
-        private string GetAudioString()
-        {
-            StringBuilder sbAudioString = new StringBuilder();
-
-            switch (FFmpeg.AudioCodec)
-            {
-                case FFmpegAudioCodec.libvorbis:
-                    sbAudioString.AppendFormat("-c:a {0} -qscale:a {1} ", FFmpegAudioCodec.libvorbis.ToString(), FFmpeg.Vorbis_qscale);
-                    break;
-                case FFmpegAudioCodec.libmp3lame:
-                    sbAudioString.AppendFormat("-c:a {0} -qscale:a {1} ", FFmpegAudioCodec.libmp3lame.ToString(), FFmpeg.MP3_qscale);
-                    break;
-                case FFmpegAudioCodec.libvoaacenc:
-                    sbAudioString.AppendFormat("-ac 2 -c:a {0} -b:a {1}k ", "libvo_aacenc", FFmpeg.AAC_bitrate);
-                    break;
-            }
-
-            return sbAudioString.ToString();
-        }
     }
 }
\ No newline at end of file