As of IDP 10.5.0, sounds have been added for various chat events. If you would like IDP to play sounds to notify you of any chat event then read on.
There are 4 different categories for each sound:
1. Global chat and emote messages
2. Channel chat
3. Whisper chat
4. Lot and local chat
The commands for this are specified below:
/chatsounds list
Lists all chat sounds that can be turned on/off, as well as whether they are on or off for you.
/chatsounds <type OR all> <on/off>
Turns on/off the specified chat sound type. If "all" is used, every chat sound will be turned on/off.