Hi Charles, Actually, that is a very good answer, and I will answer it as this would effect everyone on list to some degree or another. Especially, game developers that are using .Net. The XNA Framework is Microsoft's new XBox development framework for Windows XP, Vista, Windows Server 2003, and the XBox 360. It is scheduled by Microsoft to replace managed DirectX sometime over the next year so game developers aren't given a choice about this if they want to remain current with Microsoft technologies. One major difference between XAudio and DirectSound is audio output. In DirectSound you could use simple stereo panning to position audio effects as was done in Montezuma's Revenge, Troopenum, and other 2D accesible games. However, with XAudio the library is designed strictly for 3D positional effects which is over kill for a 2D game like Montezuma's Revenge. There are advantages and disadvantages with 3D audio effects. An advantage for us using 3D audio effects is with the proper hardware the game can render some truly incredible audio environments. On the down side it is more hardware intensive, you need better than average sound cards and headphones to get the full effect, and is over kill for games like Montezuma's Revenge. What XAudio comes down to is a question of hardware for the end user. Microsoft's new input library, XInput, is a new library for handling keyboards, mice, and game controllers. The primary advantage I can see with XInput is it allows XBox 360 owners to use their XBox game controllers on their PC with accessible games. Now, here is the kicker. If an accessible game developer purchased the Pro XNA development tools he or she could in theory create and sell XBox 360 games and sell Windows PC games with only miner modifications to the game source code. Hth.
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