Change Sound Frequency Project
You can use Alice to make 3 objects of a class. Make one small, one medium, and one large.
Use Media Computation to modify a sound to make one higher and one lower and import the sounds
into Alice and make the small object have the higher sound, the medium object have the original
sound, and the large object the lower sound.
The zip file has a word document explaining the project. It also has a sample Alice world and sounds.
It also has powerpoint slides for the media computation part.