This document provides an overview of audio recording, editing, and hosting options that can be used for training purposes. It discusses audio file formats like .wav and .mp3 and tools for recording, editing, and hosting audio like Audacity (free, open-source audio editor), SoundCloud, Podomatic, and various phone apps. It also provides examples of how audio can be incorporated into tools like VoiceThread, Evernote, PowerPoint, and Articulate.