[Mp4-tech] Audio Object Code for G.723 of MP4 format

[swhong cs.hku.hk]

Dear all,
I'm trying to add G.723 compressed audio stream to the MP4 formatted file. I 
can't find the part-3 of the Standard talks about this kind of audio codec. 
Would anybody here advise me the audio object code for G.723, and also I would 
like to know what kind of standard player under Windows XP can be used to 
playback MP4 file with G.723 audio MP4 file.
Thanks in advance.
-- Philip 
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