I don't know information beyond the
Java ME API. If you can't use the PlayerListener or something else in the javax.microedition.media.* package, either the scaled down one in MIDP 2.0 or the full version in Mobile Media API (JSR 135), then you'll just have to look at the major phone brands' Developer's websites and use their custom API calls. And then rewrite your application for every brand of phone, and some phones won't have custom APIs for Audio control so it won't work for all phones.