The solution would involve creating a complex element : parallel element of an audioelement and a serial of imageelements with duration.
You might encounter sync problems between the parallel elements - if you do not need perfect synchronization, this is the way to go.
No, it's not possible directly with FMP or SMP.
You will have to write your own application or use a specialized plugin.
You could take a look at the sample applications provided in OSMF source code: http://sourceforge.net/adobe/osmf/home/Home/
ok, thanks for your information.