1

Introduction to the DTS Audio Format

Several major consumer audio formats that exist today are listed in this table:

Audio Formats

 

Format (note 1)

Year

Chan

Class

Typical

Typical Data Rate

Compression

Test Disc

Signal Source (note 3)

 

 

Used

-nels

 

sample

(note 2)

(Approx.)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1.

Stereo

1933

2

Analog

linear

 

 

 

FM, VHS, CD, LD, etc.

 

 

 

 

 

 

 

 

 

 

2.

PCM (digital

 

2

Digital

16 bits /

705kbit/sec

None

 

DVD, LD

 

version of stereo)

 

 

 

sample.

(44.1kHz sample)

 

 

 

 

 

 

 

 

 

 

 

 

 

3.

Dolby Surround ®

1982

3

Analog

 

 

None

 

VHS

 

 

 

 

 

 

 

 

 

 

4.

Dolby Prologic ®

1987

4

Analog

 

 

None

Prologic test CD

VHS, theaters

 

 

 

 

 

 

 

 

Dolby DVD-TEST1

 

5.

Dolby Digital ®

1991

6

Digital

20 bits /

384 Kbytes/sec

90%

Dolby DVD-TEST1

DVD, LD, DTV

 

 

 

 

 

sample

(44.1kHz sample)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6.

DTS ®

1993

6

Digital

20 bits /

1,411kbits/sec

75%

DTS Test CD

DVD, LD, CD

 

 

 

 

 

sample

(44.1kHz sample)

 

DTS Test DVD

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7.

THX ®

1982

2-6

Either

 

 

 

 

Theaters, DVD, LD, VHS

 

 

 

 

 

 

 

 

 

 

Note 1 - All formats require decoders, except Stereo and THX. THX is not a processing system but an audio/video quality control approval system. Its certification stamp means that the video and audio quality at theaters and CD/DVD discs meet uniform standards. This means the same movie viewed at one theater will not be different when viewing it at another theater.

Note 2 - Data rate = bits sampled X sample rate. A CD player (44.1kHz) rate was chosen for comparison. The DVD sample rate of 48kHz would make its data rate higher than shown.

Note 3 - LD = Laser Discs; DVD = Digital videodiscs; DTV = Digital TV; theaters = Movie theaters; VHS = Videotape format.

Test discs can be purchased from different distributors:

Prologic test CD #SSTCD

·Sony parts distributors. Call 1-800-222-Sony for a distributor Dolby DVD – TEST 1 # 22707 $45.

·USC Products Marketing Co.; 1 800 983 6529

DTS Test CD (digital output only)

·Digital Sound Systems Entertainment

5171 Clareton Drive, Agoura Hills, Calif. 91301 1-818-706-3525 part #DTS-CD 96091

·Sony parts distributors. Call 1-800-222-Sony for a distributor CD part # J2501-154-A $7.76 list price

DTS Test DVD #DTS-DVD 98061

·Digital Sound Systems Entertainment Agoura Hills, Calif. 91301

1-818-706-3525 part #DTS- DVD 98061

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Sony S530D manual Introduction to the DTS Audio Format, Vhs, Dvd, Ld, Dtv, Dvd, Ld, Cd