BETA v0.9 (NO WARRANTY, tested on Chrome 34), Jakob Heinemann, technical background, DEMO file (with some Super Mario sounds) [PX51XP510]-jaxpee-mario.mem

Usage: replace the voice prompts you want and download the mem-file. Upload the file to your headset.

Current VoicePrompt-File (for PX51/XP510):  

(DO NOT RENAME the downloaded file and upload it to your headset with 'Advanced Sound Editor' from TurtleBeach)