Demonstration of Audacity for Making Sound Effects

How to make special sound effects using the free audio program Audacity. A small correction: I said that a 13-semitone change would move the pitch an octave, but it is actually 12. There are 12 different notes, and to move an octave you move 12 times to get back to the same note of the scale.

Recording Music for Computer Games

Student, cellist, guitarist and programmer Ethan Kuefner (@jazzcello on Twitter) visited my programming classes and showed how to record music and sound effects, and put them into computer games. We used Scratch, Python and Pygame, GarageBand and Audacity.