Edit and save SOUND 

Enter menu [NumLock] + [ENTER]
find "Sound Edit" by [+]/ [-]
Here are all SOUND parameters
Browse by [+]/[-] and enter by [ENTER]
to save SOUND find "Save Sound"
Type the position number, where you want to save the edited sound. (If you want to keep both edited and original SOUND)
Then [ENTER]
[+] / [-] - Yes or No confirmation then [ENTER]