Sony SRP-X700P - Manual (Page 46)

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An another representative system is DTS developed by Digital Theater System Inc.,
consists of the same discrete 5.1 channels being recorded and processed in digital,
which realizes good channel separation. It is applied digital audio compression
technology.
6.1 surround
Dolby Digital EX developed by Dolby Laboratories, provides system of of front
speakers (L, C and R), rear speakers (L, Back and R) and subwoofer.
It is recorded and processed in digital. The digital audio compression technology is
applied.
Total Harmonic Distortion (THD)
It occurs at harmonic frequencies to the whole number multiple of fundamental signal.
It is expressed as a percentage of the fundamental frequency or in dB.
Unbalanced
It is a type of input and output interface. It consists of one signal and a ground. In cable,
the ground is often shielded.
It is used in mainly consumer audio products and has advantage of low cost. However, in
case the interconnection is concerned for picked up noises, the balanced line is preferable
because of capability to cancel the picked up noises.
SOURCES
This glossary is issued by referring to following books, interviewing engineers and original
document or books in our company.
Don & Carolyn Davis, Sound System Engineering Second Edition. Howard W. Sams &
Co., MacMillan, Inc.
David M. Huber & Robert E. Runstein, Modern Recording Techniques Fourth Edition.
SAMS Publishing.
Ken C, Pohlmann. Principles of Digital Audio 3
rd Edition. McGraw-Hill, Inc.
Philip Giddings. Audio Systems Design and Installation. Focal Press.
John M. Eargl (Translating to Japanese by Masaki Sawaguchi). Handbook of Recording
Engineering. Stereo Sound Publishing Inc.
John M. Eargl (Translating to Japanese by Naka Suzuki). Handbook of Sound System
Design. Stereo Sound Publishing Inc.
Minoru Nagata. Kenchiku no Onkyo Sekkei. Ohmsha.
Heitaro Nakajima (chief editorial board). Audio 10-nenn no Ayumi. Japan Audio
Society.