Panasonic tx-34p300x User Manual
34
Surround Sound Systems
Stereo reproduction normally uses left and right speakers, but Digital Theater Systems (DTS), Dolby Digital and Dolby
Pro Logic Surround go further, adding a centre and other channels so you are immersed in sound and special effects.
Pro Logic Surround go further, adding a centre and other channels so you are immersed in sound and special effects.
Dolby Pro Logic
Dolby pro Logic Surround uses four channels of sound: left, right, centre and
a rear channel, giving excellent reproduction of Pro Logic encoded tracks
when a compatible speaker system is connected to your TV. Most dialogue
comes from the centre channel, which enhances dialogue and focuses it so
it seems to come from the action on screen. The rear channel is used to
immerse you in atmosphere and special effects, the same output is sent to
both rear speakers.
As with Dolby Digital, Pro Logic is backwardly compatible with a conventional
stereo speaker setup.
Dolby pro Logic Surround uses four channels of sound: left, right, centre and
a rear channel, giving excellent reproduction of Pro Logic encoded tracks
when a compatible speaker system is connected to your TV. Most dialogue
comes from the centre channel, which enhances dialogue and focuses it so
it seems to come from the action on screen. The rear channel is used to
immerse you in atmosphere and special effects, the same output is sent to
both rear speakers.
As with Dolby Digital, Pro Logic is backwardly compatible with a conventional
stereo speaker setup.
Digital Theater Systems (DTS) / Dolby Digital
Both DTS and Dolby Digital split soundtrack information into 6 separate channels
of sound which are output through the speaker setup: five full range channels
(left, center, right, left surround, right surround) and a ‘0.1’ (ie: limited range)
bass channel. This gives you superb sound quality from DTS / Dolby Digital
encoded tracks when a compatible speaker system is connected to your TV.
Most dialogue comes from the centre channel, which enhances dialogue and
focuses it so it seems to come from the action on screen. The separate rear
left and right channels give a dramatic sense of space, with sounds travelling
in all directions between front, centre and rear channel speakers (eg: a rocket
going overhead starts behind you to the left and explodes in front of you to the
right). The ‘0.1’ Low Frequency Effects (LFE) channel gives impact to bass
sounds and to special effects more felt than heard (eg: the thud of a dinosaur
footfall or the rumble of thunder).
While DTS and Dolby Digital are both high quality, ‘5.1’ channel surround
systems, the two systems differ in how they break down and store sound
information.
They also differ in how they work with existing speaker setups: Dolby Digital
has been developed to be backwardly compatible with Dolby Pro Logic and
conventional stereo setups. DTS, on the other hand, focuses on the high quality,
5.1 channel surround output; choosing not to develop backward compatibility
with existing sound systems.
Both DTS and Dolby Digital split soundtrack information into 6 separate channels
of sound which are output through the speaker setup: five full range channels
(left, center, right, left surround, right surround) and a ‘0.1’ (ie: limited range)
bass channel. This gives you superb sound quality from DTS / Dolby Digital
encoded tracks when a compatible speaker system is connected to your TV.
Most dialogue comes from the centre channel, which enhances dialogue and
focuses it so it seems to come from the action on screen. The separate rear
left and right channels give a dramatic sense of space, with sounds travelling
in all directions between front, centre and rear channel speakers (eg: a rocket
going overhead starts behind you to the left and explodes in front of you to the
right). The ‘0.1’ Low Frequency Effects (LFE) channel gives impact to bass
sounds and to special effects more felt than heard (eg: the thud of a dinosaur
footfall or the rumble of thunder).
While DTS and Dolby Digital are both high quality, ‘5.1’ channel surround
systems, the two systems differ in how they break down and store sound
information.
They also differ in how they work with existing speaker setups: Dolby Digital
has been developed to be backwardly compatible with Dolby Pro Logic and
conventional stereo setups. DTS, on the other hand, focuses on the high quality,
5.1 channel surround output; choosing not to develop backward compatibility
with existing sound systems.
Centre speaker
Front
left
speaker
left
speaker
Subwoofer/
LFE speaker
LFE speaker
Rear left
surround
speaker
surround
speaker
Front
right
speaker
Rear right
surround
speaker
Surround Sound
Centre speaker
Front
left
speaker
left
speaker
Rear left
surround
speaker
surround
speaker
Front
right
speaker
Rear right
surround
speaker
DTS/Dolby Digital setup
Dolby Pro Logic setup
Note:
• External equipment is usually connected to the TV via one of the AV terminals
• External equipment is usually connected to the TV via one of the AV terminals
to provide pictures and sound (eg: a VCR player connected to AV2). To receive
a DTS or Dolby Digital encoded soundtrack from compatible equipment (eg: a
DVD player, a set top box), you will also need to connect an optical or coaxial
cable to one of the TVs digital audio sockets. See pages 12 to 13 for connection
details, also see the Digital Audio option in the SOUND menu, page 22.
a DTS or Dolby Digital encoded soundtrack from compatible equipment (eg: a
DVD player, a set top box), you will also need to connect an optical or coaxial
cable to one of the TVs digital audio sockets. See pages 12 to 13 for connection
details, also see the Digital Audio option in the SOUND menu, page 22.
Notes:
• To get Pro Logic information from Pro Logic encoded TV programmes, you
• To get Pro Logic information from Pro Logic encoded TV programmes, you
must be able to receive stereo transmissions. If stereo transmissions are
not transmitted in your area then the Pro Logic information will not be present
on TV transmissions and Pro Logic decoding will only produce a centre
channel output.
not transmitted in your area then the Pro Logic information will not be present
on TV transmissions and Pro Logic decoding will only produce a centre
channel output.
• See pages 12 to 13 for connection details.