Rogue Amoeba Software today announced the release of Detour 1.0, a new Mac OS X audio utility that lets you choose the audio output device and relative volume for all of your applications. With Detour, you can send iTunes music and DVD Player sound to an external set of speakers or headphones while keeping noises from iChat and other programs coming out of the computer’s smaller built-in speaker, according to the developer. Detour is US$12 shareware, with an introductory price of $10 through July 31.