Service Manuals, User Guides, Schematic Diagrams or docs for : Samsung Audio HT-P1200 HT-P1200 16_Reference
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1. Definition of Home Theater
What is Home Theater?
Home theater system is the proper combination of audio and video system at home which enable
you to enjoy more dynamic sound and vivid image in a wide screen of movie theater.
This effect can be implemented with wide screen, high quality projector, Dolby digital and DTS
sound effects.
Now you can enjoy surround sound field wieh realistic presence and Dolby digital at your home as if
you are in a movie theater.
As time goes by, home theater system has become recognized as a system that helps listen sound
closer to the original sound rather than video. In this 21st century, most movie and animation films
will be produced for home theater and reproduce sound closer to original sound.
Samsung Electronics 14-1
2. Concept of Sound
What is Sound Range?
People can listen to the sounds with frequency between 200Hz~20.000Hz
As time goes by, home theater system has become recognized as a system that helps listen sound
closer to the original sound rather than video. In this 21st century, most movie and animation films
will be produced for home theater and reproduce sound closer to original sound.
What is Sound Pressure?
* A measure of how well speaker converts electric signal it receives to sound
* Unit of sound pressure is decibel and mainly measures the size of sound at 1 m away after
sending 1 W power from speaker.
High sound pressure doesn't necessary mean good performance
What is Timbre?
* How well the unique sound of musical instrument is expressed
* Better if violin and cello sound are accurately distinguished. Good timbre means high quality.
14-2 Samsung Electronics
2. Concept of Sound
By reproducing standard channels used during soundtrack recording of movie,
it outputs 3 sounds of movie (words / music / sound effects) from 6 different
speakers and provides surround dynamic sound effects so that you can even
feel the direction of sound.
5 channel
A Center Speaker : Voice ( over 95%)
B Front Speaker (L/R) : Music Sound
C Rear Speaker (L/R) : Sound Effect
0.1 channel
D Subwoofer : Low Sound Effect
* Power amp is embedded in active sub woofer
* Require separate amp since there is no amp in passive sub woofer
No difference in performance of active sub woofer and passive sub woofer
Samsung Electronics 14-3
4. Home Theater Sound Format
Overview
* As home theater has recently penetrated deep into consumer's market in Korea, Dolby digital and
DTS, the sound format for 5.1 channel home theater, are the mainstream in the market.
* Expanded type of 6.1 channel or 7.1 channel are recently released in the market, but there are
not much DVD title that can support expanded type.
1958 1Ch Mono/ 2Ch Stereo
1982 Matrix 3Ch Dolby Surround
1987 Matrix 4Ch Dolby Pro Logic
1995 5.1Ch Dolby Digital
1997 DTS (Digital Theater System)
1999 Matrix 6.1Ch Dolby Digital Sourround EX
Home theater format...
Stereo
Is used in general audio and analog TV and and consists of 2
channels, at front left/right
Dolby Surround
In this sound format, 4 audio channels (Front left / right / center /
surround) are entered in 2 channel and reproduce in 4 channels
through device with Dolby decoder.
Center channel is not completely separated so that it forms virtual
center channel with help of front left / right channel.
14-4 Samsung Electronics
Dolby Prologic
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