Question

I am using the Expression Encoder SDK to encode .avi and Flash files to a .wmv format suitable for Silverlight. By default, EE encodes files with audio using the the WMA PRO codec. If you are running Windows Server 2003, this is a problem as it doesn t support the WMA PRO codec and produces and error message similar to the following.

Error Message: The Audio Profile settings do not match a valid system profile.
Error Source: Microsoft.Expression.Encoder
Error Target Site: System.String GetProfileString()

I am looking for a way to change the default audio codec to something suitable for WS 2003.

I am aware that although not supported natively, there is a highly invasive way to install Windows Media Player 11 and it s codecs on WS 2003 but this involves registry tinkering and other hacks not suitable for our production environments so that solution is out.

Answer 1

Found an answer after a a lot of tinkering not much out there for documentation on the Encoder SDK. To change the codec using the SDK:

Encoder.MediaItem itemToTranscode = new Encoder.MediaItem(srcPath); itemToTranscode.OutputFormat.AudioProfile.Codec = AudioCodec.Wma;

This works fine with Windows Server 2003 and solves the issue.

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