A few guides on how to find or record your own audio for games using the open source tool Audacity. Recommended for those who have more musically inclined students, or who have music as a key element in their game design.
AU0 - Introduction to Audio
Dr Kevin Miklasz introduces the Audio course.
AU1 - Audacity Demo
AU2: Found sound and audio libraries
AU3 - Recording Audio
AU4: Processing Audio with Filters and Special Effects