home theater design

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)