Dolby E
Encyclopedia
Dolby E is an audio
Sound
Sound is a mechanical wave that is an oscillation of pressure transmitted through a solid, liquid, or gas, composed of frequencies within the range of hearing and of a level sufficiently strong to be heard, or the sensation stimulated in organs of hearing by such vibrations.-Propagation of...

 encoding
Encoder
An encoder is a device, circuit, transducer, software program, algorithm or person that converts information from one format or code to another, for the purposes of standardization, speed, secrecy, security, or saving space by shrinking size.-Media:...

 and decoding
Decoder
A decoder is a device which does the reverse operation of an encoder, undoing the encoding so that the original information can be retrieved. The same method used to encode is usually just reversed in order to decode...

 technology
Technology
Technology is the making, usage, and knowledge of tools, machines, techniques, crafts, systems or methods of organization in order to solve a problem or perform a specific function. It can also refer to the collection of such tools, machinery, and procedures. The word technology comes ;...

 developed by Dolby Laboratories
Dolby Laboratories
Dolby Laboratories, Inc. , often shortened to Dolby Labs, is an American company specializing in audio noise reduction and audio encoding/compression.-History:...

 that allows up to 8 channels of audio to be compressed into a digital
Digital
A digital system is a data technology that uses discrete values. By contrast, non-digital systems use a continuous range of values to represent information...

 stream that can be stored on a standard stereo
STEREO
STEREO is a solar observation mission. Two nearly identical spacecraft were launched into orbits that cause them to respectively pull farther ahead of and fall gradually behind the Earth...

 pair of audio tracks.

Anything up to a 5.1 mix can be recorded in 16-bit, however, if anything more than 5.1 is required, the tape format must accept 20-bit audio.

It is very important to ensure that a Dolby E stream is never played through monitors without being decoded. The data stream produces a very loud digital noise that can easily blow the tweeter
Tweeter
A tweeter is a loudspeaker designed to produce high audio frequencies, typically from around 2,000 Hz to 20,000 Hz . Some tweeters can manage response up to 65 kHz...

s. Tape labeling is essential to avoid this.

Dolby E never reaches home viewers, it is used when passing material between production facilities and broadcasters, but is decoded before transmission.

Dolby E encoding and decoding is implemented using commercially available hardware or software.

Dolby E Hardware Products:

Dolby DP571, Dolby DP572, Dolby DP600 and Dolby DP600C

Dolby E Software Products:


Minnetonka Audio Software - SurCode for Dolby Ehttp://www.minnetonkaaudio.com/products/surcode11.html
Dolby E Encoding and Decoding for Pro Tools, Nuendo, Pyramix, Fairlight and AudioTools AWE.
Neyrinck SoundCode
SoundCode
SoundCode is an audio encoding and decoding product line developed by Neyrinck that uses audio encode and decode technologies to convert audio signals from one format to another.The technologies used include Dolby E, Dolby Digital, and DTS....

For Dolby E

External links

Dolby E - Multimedia Wiki
The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
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