Sony DVP S530D User Manual download pdf (Page 7)

What is DTS?

Digital Theater Systems has developed a digital audio compression method

similar to Dolby Digital AC-3. DTS processed audio is not as compressed

as Dolby AC-3. Therefore it is said to have more surround detail (separa-

tion), envelopment and better bass because of less compression (losses).

What do I need to play the DTS surround format?

The DTS source can be a DVD movie or CD. The DTS decoder is com-

monly found in the receiver.

5 Speakers

CD/DVD Player 6 Channel Receiver

With DTS Decoder

Digital output preamp out to

Sub Woofer

What do I need to play both the AC-3 and DTS surround

formats?

The AC-3 source can be DVD or HDTV (future). The decoder can be

found in the player or receiver.

AC-3 decoder in the Player:

AC-3 decoder in the Receiver:

5 Speakers

CD/DVD Player 6 Channel Receiver

With AC-3 decoder With DTS Decoder

preamp out to

Digital Output Sub Woofer

5 Speakers

CD/DVD Player 6 Channel Receiver

With DTS Decoder

And AC-3 Decoder

Digital output preamp out to

Sub Woofer

Will a 5.1 channel DTS CD play in my CD player?

Only digital noise will appear from the L/R analog outputs if not automati-

cally muted. There will be digital output from the coaxial and optical ports.

Either digital output can be fed to a DTS stand-alone decoder or a re-

ceiver with a DTS internal decoder. The DTS receiver will produce the six

channels (“5.1”) or be downmixed into two (front L/R) channels depend-

ing upon the user menu.

A DTS CD compresses the six channels of audio into the space originally

occupied by the two-channel uncompressed CD audio. In order for six

compressed channels to fit on a CD, the data rate must be equal to or

less than the rate of a normal uncompressed CD.

Data rate of an uncompressed CD per channel =

16 bits/sample x 44, 100 samples/second = 706 Kbytes/sec.

There are two channels so the rate is doubled. Therefore the data rate of

a normal stereo CD = 1,412kbit/sec.

This is just about the same data rate as a DTS compressed CD. The DTS

data rate is 1,411kbits, so no analog sound will be output from a DTS CD.

For comparison, CD, DTS, and AC-3 data rates are shown:

Data Rate Comparison (44.1 kHz sample rate)

Format Output Data Rate

CD Not compressed 1,412 Kbytes/sec.

DTS Compressed 1,411 Kbytes/sec.

Dolby Digital AC-3 Compressed 384 Kbytes/sec.

1 2 3 4 5 6 7 8 9 10 11 12 ... 91 92

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Sony DVP S530D User Manual Page 7

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