Audio URL for AAC

[Robert_Hastings]

For mp3 audios we have been using URLs in the form:

rtmp://hostName:1935/vod/definst/mp3:73/file.mp3

for AAC audio do we replace the “mp3:” with “aac:”

For example:

rtmp://hostName:1935/vod/definst/aac:73/file.aac

Can anyone point me to the documentation?

Thanks,

Bob

[Robert_Hastings]

Also, should the SMIL switch element look like this?