Change the Message sounds when you send a message

[Lounge vibes 05]

I am a person who loves to customize things to my liking, and I do not like being forced to use things. The sound when you send a message in Messages (that little WOOOOO that goes up in tone) or when you have the chat open and you receive a message (the WOOOO sound going down in tone. Is there any system file I can replace with my own, and have it make that sound when I send or receive message? It would really help me.

 

[MacGizmo]

1. Right-click on Messages app and select "Show Package Contents"
2. Open the "Contents" folder
3. Open the "Resources" folder
4. Everything in the "Resources" folder that ends in .aiff is a sound file. As long as you name your new/preferred sound exactly the same as the one you're replacing it should work—though I don't guarantee it.

PS: I really don't recommend messing around like this unless you know what you're doing. To point out the obvious: make a backup of the app first.

 

[FreakinEurekan]

...And be prepared to redo the steps after any OS updates, the changes will likely revert.