In addition, some less traditional functions are proposed as reverberation impulse responses for use as musical effects. A discussion of theory and operation of Dolby Surround and Dolby Pro Logic decoders. A discussion of 3D audio reproduction over loudspeakers and in headphones with special focus on the acoustic environment modeling technology developed by Wave Arts, Inc. and Dr. William Gardner. This paper examines the role of HRTFs in headphone virtualization with special attention to the differences between 3D audio reproduction from loudspeakers and in headphones. This paper discusses the importance of chaotic waves to spatial hearing and synthesis of chaotic waves in interactive acoustic simulation environments in headphones.
Much confusion abounds regarding headphone power requirements.
How to hook up audio equipment without suffering through all sorts of bizarre noises, hums, buzzes, whistles, etc. Has plans for balanced and unbalanced summing boxes - with section on summing low signals to drive subwoofers. A dozen possible procedures exist for correctly setting the gain structure of any system. The fundamental principles are applicable to different system configurations. Although these technical documents are written in an intellectual property patois, most are intelligible with just a bit of effort and are a valuable resource for researchers and DIYers alike.