Keeping a mobile app alive

[Earthednet-wp]

I have a mobile app that will be playing a long audio file. Is there a way to keep the application from going inactive when the device goes into sleep mode? On my iPad, after a period of no user activity, the screen goes black and the audio ceases. Is there a way to prevent this from happening?

Google has been no help and I can't find anything in the user guide, or the dictionary. Perhaps there is a syntax I haven't thought of.

Regards,
Bill

William Prothero
http://es.earthednet.org