Mer/Tasks/Open System Sounds
Open system sounds
List of wav files from osso-sounds-ui (non-free package):
/usr/share/sounds/ui-recharge_battery.wav /usr/share/sounds/ui-connection_lost.wav /usr/share/sounds/ui-window_open.wav /usr/share/sounds/ui-window_close.wav /usr/share/sounds/ui-information_note.wav /usr/share/sounds/ui-new_email.wav /usr/share/sounds/ui-wake_up_tune.wav /usr/share/sounds/ui-charging_started.wav /usr/share/sounds/ui-confirmation_note.wav /usr/share/sounds/ui-gesture_number_recognized.wav /usr/share/sounds/ui-shutdown.wav /usr/share/sounds/ui-key_press.wav /usr/share/sounds/ui-pen_down.wav /usr/share/sounds/ui-general_warning.wav /usr/share/sounds/ui-thumb_keyboard_launch.wav /usr/share/sounds/ui-battery_low.wav /usr/share/sounds/ui-default_beep.wav /usr/share/sounds/ui-operation_ready.wav /usr/share/sounds/ui-wrong_charger.wav
Links
Some of these may provide sounds which could be used directly, or with some modification: