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Types Of Digital Audio

Symbol What it means
Dolby Digital Mono Dolby Digital Mono

This program features a mono soundtrack encoded to an AC-3 bitstream.  When played through Dolby Digital® equipment, sound will be heard from the center channel only.

Dolby Digital Stereo Dolby Digital Stereo

This program features a stereo soundtrack encoded on an AC-3 bitstream.  When played through Dolby Digital® equipment, sound will be heard from the front left and front right speakers only.

PCM PCM

This program features an uncompressed digital stereo soundtrack for improved fidelity.  When played, discrete sound will be heard from the front left and front right speakers.

Dolby Digital Surround Dolby Digital Surround

This program features a matrixed surround soundtrack encoded to an AC-3 bitstream.  When played through Dolby Digital® equipment, sound will be heard from all five speakers.  The surround information will be discrete monophonic.

Dolby Digital 4.0 Dolby Digital 4.0

This program features a discrete four channel soundtrack encoded to an AC-3 bitstream.  When played through Dolby Digital® equipment, sound will be heard from all five speakers.  The surround information will be discrete monophonic.

Dolby Digital 5.0 Dolby Digital 5.0

This program features a discrete five channel soundtrack encoded to an AC-3 bitstream.  When played through Dolby Digital® equipment, discrete sound will be heard from all five speakers.

Dolby Digital 5.1 Dolby Digital 5.1

This program features a discrete 5.1 channel soundtrack encoded to an AC-3 bitstream.  When played through Dolby Digital® equipment, sound will be heard from discrete sound will be heard from all five speakers and a subwoofer.

DTS DTS

This program features a discrete 5.1 channel soundtrack and must be played through DTS-compatible equipment.  When played through DTS® equipment, sound will be heard from all five speakers and a subwoofer.

 

Note: "Types of Digital Audio" was taken word for word from a Universal Studio's DVD insert.  Dolby and Dolby Digital are registered trademarks of Dolby Laboratories Licensing Corporation.  There is no copyright on the above definitions and corresponding icons.

 

Note: Map image taken from DVD Expression and then edited to black and white image.

 

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