Creating Audio for UpStage
As well as sound created in real-time by avatar voices, prerecorded MP3 files can be uploaded to UpStage and played via the Audio palette in the on-stage player tools. Prerecorded audio could include music, sound effects, human voices, etc. At this stage, ONLY the MP3 format works (a third possibility for adding audio to your performance is to embed audio in a Flash animation, if you have the skills and ability to do this).
A 1MB file size limit for audio uploads is in place on the UpStage Open Server (8084); this is to ensure that the server doesn't get unnecessarily filled up with enormous files, and that stage load times are not too long and tedious for the audience. Remember that when the audience enters your stage, all of the media you have assigned to the stage will be loaded to their computer before they arrive at the stage; therefore the bigger the files, the longer the load time.
There are many ways to create, convert and compress MP3 audio files; we recommend that you refer to other manuals for more information on this if you are not familiar with it.