Post on 05-Jan-2016
description
HOME THEATER DESIGN
CARL FOUTZ
CEU# 970382
SPEAKER PLACEMENT
FRONT SPEAKERS
HEAD HEIGHT SEATED APPROXIMATELY 40 INCHES
FROM CENTER OF MAIN SEATING AREA 45* ANGLE FOR SPEAKER SEPERATION
TYPES OF SPEAKERS
BOOKSHELFTOWER ON WALLIN WALLCEILING (DISPERSED)
CENTER SPEAKER
MOUNTED DIRECTLY
ABOVE OR BELOW THE TV, OR BEHIND THE SCREEN
TYPES OF SPEAKERS
CENTER SPEAKER SHOULD MATCH
FRONT LEFT AND RIGHT SPEAKERS
WHEN SPEAKER IS USED NEAR TV IT MUST BE SHIELDED
CABINET, INWALL, ONWALL OR DISPERSED CEILING
REAR SPEAKERS
ON SIDE WALLS DIRECTLY BEHIND THE MAIN SEATING
AREA ABOUT 3 FEET HIGHER THAN FRONT SPEAKERS
TYPES OF SPEAKERS
BOOKSHELFONWALLINWALLCEILINGDIPOLE (BEST FOR REAR EFFECTS
SPECIAL DESIGNS
Dipole designs that radiate most of their sound to the front and the rear.Creates null so that little direct sound reaches them.Work best when mounted on side walls.
SPECIAL DESIGNS
Dipole designs that radiate most of their sound to the front and the rear.
Creates null so that little direct sound reaches them.
Work best when mounted on side walls.
SUBWOOFER
REPRODUCE LOW BASS EFFECTS HEIGHTEN INVOLVEMENT WITH THE
ACTION ON THE SCREEN CORNER PLACEMENT TO FULLY UTILIZE
SUBWOOFER CAPABILITY
5.1 SURROUND SOUND
DOLBY DIGITAL (AC3)DOLBY LABORATORIES
DTSDIGITAL THEATER
SYSTEMS
5.1 SOURCES
DVD LASER DISC SATELITE CABLE (SOME AREAS) PASSING A 5.1 SIGNAL MUST
BE DONE ON FIBER OPTICOR COAX CABLE
EXTENDED SURROUND
DOLBY DIGITAL
REFERRED TO AS EX & 7.1
DTS
REFERRED TO AS ES & 6.1
EX SPEAKER PLACEMENT
2 SPEAKERS
SAME HEIGHTH AS SIDESREAR WALL
SEPARATED BY 4 FEET
1 SPEAKERREAR WALLSAME HEIGHTH AS SIDESCENTER OF LISTENING AREA
EX SPEAKER PLACEMENT
VIDEOSCREENS
The size of the screen is not the only factor in the perceived picture size; distance from the screen is equally important.
There is a trade off of picture quality versus size.
VIDEO SCREENS When seated too close,
the scanning lines on the tube or the pixels on the projectors will be apparent.
Seating far enough back will blend these details to the human eye.
VIDEO SCREENS
Movie theaters are designed so that viewing angles are reduced to provide more realistic images. Prime seating is designed to view the movie at a 30 degree angle (peripheral view of the human being).
When adopting this design to the home theater; visual scanning lines and pixels are detected.
VIDEO SCREENS
SEATING RANGE DILEMMA
Seating distance to overcome visual image structure is typically 4X the height of the video screen.
Or this distance can be also measured as 3X the width of the screen.
These two parameters are commonly recommended distances by projection screen manufacturers.
DVD
Innovative creation of digital and audio and video.
Can play up to 133 minutes of full motion video on a single sided disc (92% of all movies ever made).
DVD
Picture quality approaches “D-1” studio production standard.
Over 500 lines horizontal resolution (240 lines VCR).
Up to 8 languages and 32 subtitles.
DVD
Choice of PCM stereo sound or digital multi channel surround.
Supports letterbox, pan and scan or 16 X 9 formats. Holds 4.7 gigabytes of data per layer (compared to
680 megabytes of data on a CD). Offers dual layer double sided disc options.
DVD FUTURE APLLICATIONS
The ability to view scenes shot at multiple angles.
Recordable, rewritable and high definition media.
PROGRESSIVE SCAN DVD
PLAYERS WITH PROGRESSIVE SCAN WILL OFFER OUTPUTS FOR HDTV READY DISPLAY MONITORS. THE PLAYER WILL THEN BE CAPABLE OF RECONSTRUCTING 3/2 PULLDOWN EFFECT INTRODUCED WHEN THE FILM-BASED PROGRAMS ARE TRANSFERRED TO VIDEO. RESULTS IN THE BEST PICTURE QUALITY AVAILABLE!
HOOKING UP
SATELITECABLE
ANTENNA
DVDVCR
COMPOSITEVIDEOCIRCA 1950DESIGNED VIDEO CABLEPOOR BANDWIDTHPOOR COLOR SEPERATION
SATELITECABLE
ANTENNA
DVDVCR
S VIDEOCIRCA 1980BROADER BANDWIDTHGOOD COLOR SEPERATIONDESIGNED FOR COLOR TV
SATELITECABLE
ANTENNA
DVDVCR
COMPONENTVIDEOREQUIRED FOR HDTV
SATELITECABLE
ANTENNA
DVDVCR
ANALOG AUDIOSTEREO
SATELITECABLE
ANTENNA
DVDVCR
DIGITAL AUDIOMUST USE FOR DTS ANDDOLBY DIGITALFIBER OPTIC TOSLINK CONNECTORCOAXIAL RCA CONNECTOR
SATELITECABLE
ANTENNA
DVDVCR
HDMIHDTV VIDEODIGITAL AUDIO
RELATIONSHIP BETWEEN AMP POWER & SOUND PRESSURE
2 WATTS = + 3DB 4 WATTS = + 6DB 10WATTS= +10DB (TWICE AS LOUD AS 1 WATT) 20WATTS = +13DB 40WATTS = +16DB 100WATTS= +20DB (FOUR TIMES AS LOUD AS 1 WATT)
200WATTS= +23DB 400WATTS= +26DB 1000WATTS=+30DB (EIGHT TIMES AS LOUD AS 1 WATT)