|What is needed to get HDTV
Audio and Home Theatre Systems
HDTV programs are delivered with high quality audio in
multi-channel surround sound, known as Dolby Digital AC-3, which can give a theatre-like
level of performance when processed through appropriate equipment. Most HD televisions,
however, simply process the audio to a stereo L/R mix, possibly with an option to connect
the Dolby Digital AC-3 signal through a fiber optic or coaxial cable connection to an
external decoder. Similarly, the set-top-box may offer the full 5.1 channels at its
output, the encoded Dolby Digital signal or a stereo mix.
To obtain the full sound performance a full
multi-channel decoder is required with the associated 6 speakers (Front L, C, R; Surround
L, R; sub-woofer) and their proper installation in a good acoustic environment.
surrounding the listeners. If this is achievable, then the investment in high quality
receiver decoder/speakers is worthwhile.
Additional satisfaction may be obtained from the exciting HDTV programs by upgrading the
home audio/video entertainment system to the Home Theatre level. Even a small to medium
size room can provide the ambiance of the movie theatre when thus treated. The Home
Theatre system typically includes a large HDTV screen and the high quality multi-channel
sound system, supported by PVR, DVD player and other program sources. Frequently, Home
Theatre installations may include acoustic treatment, theatre style furnishings and
lighting. The Home Theatre allows the viewing of HDTV at its best.