To change the way your TomTom device warns you about speed cameras, tap the Alert settings button.
You can then set what type of sound is played.
For example, to change the sound that is played when you approach a fixed speed camera, do the following:
A list of speed camera types is displayed. A speaker is shown next to the speed camera types that have an alert set.
The warning sound you selected is now set for fixed speed cameras. A speaker symbol is shown next to Fixed cameras in the list of types of speed camera.