akp is: Akp extension is associated with Akai Sampler File. You can try to open akp files with chicken systems translator software.
These are the files that saved with Akai sound device. Akp file formats may be created by those Akai devices: S5000, S6000, Z4, or Z8. You have chance to convert akp files to another kind of sound files by using Chicken Systems Translator software. To get detailed information please check the following links.
Akp File format viewers or openers
Chicken Systems Translator
Akp File related links.