The Microsoft Cross-Platform Audio Creation Tool (XACT) is an audio implementation platform that is available for use on Xbox 360, Windows, and XNA Game Studio Express titles. The XACT authoring tool enables composers and sound designers to create dynamic, non-repetitive sound effects and more easily take advantage of sophisticated, real-time effects processing. The XACT engine provides optimized bundling and multi-streaming interfaces for programmers, as well as the ability to interactively perform and monitor audio playback programmatically. XACT supports real-time in-game auditioning, editing, mixing, and monitoring of audio content, allowing for rapid content prototyping with minimal programming resources. In this hands-on session we’ll go over the basics and some more advanced techniques using XACT to create, edit, and play back content. There will be tasks for both programmers and content creators to explore while familiarizing themselves with this audio engine and creation tool.