Pentax Optio V10 - Manual (Page 152)

150
8
Settin
g
s
7
Use the four-way controller (23) to select [1] (default
setting), [2], [3] or [Off] and press 4 button.
The selected sound type is saved.
8
Set [Shutter Sound] and [Operation Sound] in the same
way as in Steps 5 to 7.
Use the four-way controller (45) to select O (On) or P (Off) for the
self-timer sound.
9
Press the 3 button.
The screen returns to the [B Setting] menu with the changed setting.