A hardware and software audio standard developed by Creative Labs. It was originally used in SoundBlaster sound boards, and is supported by other companies...

Environmental Audio Extensions: a hardware and software audio standard developed by Creative Labs. And used originally in the company's SoundBlaster cards. EAX has subsequently become a widely supported standard offering 3D positional audio and allowing the manipulation of sounds so that they can appear to be heard in different listening environments.

Electronic Automatic Exchange.