What is a dolby sound??

Question

introduced by Ray Dolby

Answer 1

Dolby is a company that makes sound decoding technology. They have several different technologies that decode stereo sound into different sounds (like 5.1 surround sound). In order to use their systems, manufacturers pay them a fee.

This link will explain in much more detail if you want to know more.

http://liquidtheater.com/editorial_50.ht...

Answer 2

Dolby Digital, or AC-3, is the common version containing up to six discrete channels of sound, with five channels for normal-range speakers (20 Hz – 20,000 Hz) (right front, center, left front, right rear and left rear) and one channel (20 Hz – 120 Hz) for the subwoofer driven low-frequency effects. Mono and stereo modes are also supported. AC-3 supports audio sample-rates up to 48KHz. Batman Returns was the first film to use Dolby Digital technology when it premiered in theaters in Summer 1992. The LaserDisc version of Clear and Present Danger featured the very first Home theater Dolby Digital mix in 1995.

This codec has several aliases, which are different names for the same codec:

    * Dolby Digital (promotional name, not accepted by the ATSC)

    * DD (an abbreviation of above, often combined with channel count: DD 5.1)

    * Dolby Surround AC-3 Digital (second promotional name, as seen on early film releases and on home audio equipment until about 1995/1996)

    * Dolby Stereo Digital (first promotional name, as seen on early releases, also seen on True Lies LaserDisc)

    * Dolby SR-Digital (when the recording incorporates a Dolby SR-format recording for compatibility)

    * SR-D (an abbreviation of above)

    * Adaptive Transform Coder 3 (relates to the bitstream format of Dolby Digital)

    * AC-3 (an abbreviation of above)

    * Audio Codec 3, Advanced Codec 3, Acoustic Coder 3 (These are backronyms. However, Adaptive TRansform Acoustic Coding 3, or ATRAC3, is a separate format developed by Sony)

    * ATSC A/52 (name of the standard, current version is A/52 Rev. B)

Answer 3

Stereo phonic sound is called dolby sound.

Answer 4

# The manufacturer (and trademark) of audio noise reduction systems and other systems that improve the performance and fidelity of audio recording ...

http://www.alteclansing.com/prod_glossar...

# The founder and sole owner of San Francisco-based Dolby Laboratories.

http://www.northbeachpost.com/handy_glos...

# A compression/expansion (companding) noise reduction system developed by Ray Dolby, widely used in consumer, professional and broadcast audio applications. Signal-to-noise ratio improvement is accomplished by processing a signal before recording and reverse-processing the signal upon playback.

http://www.hdtvglossary.com/hdtv2.html

# The first, and still the most widely used, tape noise and reduction system, invented by Or Ray Dolby. During recording, this device raises the high frequencies (where most background hiss is present) above normal. ...

http://www.sudeepaudio.com/glossary_deta...

# United States electrical engineer who devised the Dolby system used to reduce background noise in tape recording

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