How do I adjust audio bit rate in MPEG-2 Program Stream?

I don't see any way to adjust the audio bit rate in the MPEG-2 Program Stream setting in Compressor 3.5.3.  I need a specific bit rate of 224 KBps within an MPEG 1 Layer 2.
Thank you.

AFIAK, there is no way within the preset adjustments to change the audio – either in 3.5 or 4.0
Try this for a work-around. Choose the MPG-1 setting, open Inspector and disable Video. Adjust the audio rate to 224 in the Audio tab. Submit and you should get an audio stream. In a separate job choose the MPEG-2 settings. Open the Inspector>Encoder Tab>Extras and deselect multiplex. Submit and Compressor should spit out an MPEG-2 video stream. You should be able to multiplex them in Mpeg Streamclip. (The files need  to have the exact same name prior to their respective extensions.)
Good luck.
Russ

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