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Audio Hookup<br />
The following audio hookup options are available:<br />
DVD Technical Details 87<br />
NOTE: All DVD players have a built-in two-channel Dolby Digital<br />
(AC-3) decoder. Some can also decode MPEG or DTS audio. The<br />
decoder translates multichannel audio into two-channel PCM audio.<br />
This goes to the digital output and is also converted to analog for<br />
standard audio output. Some players have a built-in multichannel<br />
Dolby Digital decoder, but it’s only useful if you have an audio system<br />
with multichannel analog inputs. (See “Can You Explain This Dolby<br />
Digital, Dolby Surround, Dolby Pro Logic, DTS Stuff in Plain English?”<br />
for more explanation.)<br />
• Analog audio (two-channel stereo/Surround) (ok quality) All DVD<br />
players include two RCA connectors for stereo output. Any disc with<br />
multichannel audio is automatically decoded and downmixed to Dolby<br />
Surround output for connection to a regular stereo system or a Dolby<br />
Surround/Pro Logic system. Connect two audio cables between the<br />
player and receiver, amplifier, or TV. Connectors may be labeled audio<br />
or left/right; left is usually white, and right is usually red. If your TV has<br />
only one audio input, use the left channel from the DVD player.<br />
• Digital audio (best quality) Almost all DVD players have digital<br />
audio outputs. The same output can carry Dolby Digital (AC-3), PCM<br />
audio (including PCM from CDs), DTS, MPEG-2 audio (PAL/SECAM<br />
players only), and MLP audio (from DVD-Audio discs). For PCM, a digital<br />
receiver or an outboard DAC is required. For all other formats, the<br />
appropriate decoder is required in the receiver/amplifier or as a separate<br />
audio processor.<br />
For example, to play a disc with a Dolby Digital soundtrack using a<br />
digital audio connection, the receiver has to have the Dolby Digital feature.<br />
DTS discs require a player with the “DTS Digital Out” mark (older<br />
players don’t recognize DTS tracks) and the DTS decoding feature in<br />
the receiver. (All DVD players can play DTS CDs if a DTS decoder is<br />
connected to the digital PCM output signal.) Some DVD players have<br />
coax connectors (SP/DIF), some have fiber-optic connectors (Toslink),<br />
and many have both. Endless arguments take place over which of<br />
these is better. Coax seems to have more advocates, because it’s<br />
inherently simpler. Optical cable is not affected by electromagnetic
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