Audio in Powerpoint 2010

[jba7257]

In PowerPoint 2010 I want to insert an audio clip and have it play over only a specific number of slides. There does not seem to be a way to do this. Even when I use the trim option and set a specific time, the audio stops when I move to the next slide. And, of course, setting it to play across slides makes it play across ALL slides. Is there any way to set it to play a specific clip across only a specific number of slides