general |
products |
home theatre terms |
speaker designations
| surround formats
General Info:
"Home Theatre
wraps you in your movies and music, taking the experience far beyond mere
watching or listening. You're no longer a spectator, but a
participant.
You're in the midst of movie action or totally absorbed into your music.
You're part of the future of home entertainment."
DJ Electronics can design and install
an entire home theatre system designed to suit your decor and budget.
We specialize in full cinema room
design and can work with your builder or architect to design the ultimate
cinema room.
In our designs we strive to replicate
the true cinema experience with as little operator effort as possible.
We are not a retailer and source
specific products best suited to your requirements through our own wholesale
suppliers.
Below you can get a glimpse of some of
the Installations we have performed to date and as you can see, we can work
around your current room or design or fit-out a complete stand alone room.
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Products:
We have access to a range of products
used in many of our installations.
They Include (but are definitely not
limited to);
Contact us to discuss your specialized
requirements.
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Home Theatre Terms:
Some Home Theatre
Terms Defined
As with any technology,
home theatre has its own set of terms. Here are some of the more common ones
you'll encounter on our Web pages and elsewhere.
Channel
- An independently
processed or recorded audio signal.
Discrete
- A channel that is both
recorded and played back as a unique and independent entity.
Matrix
- For home theatre,
refers to a method of electronically combining and separating signals to
create multiple-channel playback from two-channel sources.
Matrixed audio
channels are less precise than discrete.
Speaker
- A device that converts
electrical signals to sound. Not the same as a channel; a channel may have any
number of speakers, all receiving the same signal.
Surround
Sound - The key home
theatre technology. Surround sound consists of four to eight channels, with
the speakers surrounding the listening area. See
speaker designations below.
LFE
Channel - Low frequency
effects channel, dedicated to frequencies from 3 to 120 Hz (the ".1" channel,
so designated because it corresponds to about 1/10 the full audible range).
Subwoofer
- A speaker specially
designed to reproduce the LFE channel frequencies.
Full Range
or
Full Bandwidth
- In describing channels or speakers, this means 3 Hz to 20
kHz. This corresponds to the normal range of human hearing. (Actually,
frequencies below about 20 Hz are felt rather than heard.)
5.1
- Five full-range channels plus the LFE channel.
6.1
- Six full-range
channels plus the LFE channel, often described as Dolby Digital EX, or
DTS:ES
7.1
- Seven full-range
channels plus the LFE channel.
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Home Theatre Speaker Designations:
Front
Speakers (Left and
Right) : The two speakers in a stereo setup. In a surround sound system,
these provide the sound that accompanies objects being panned across the
screen.
Centre
Speaker : Firmly
anchors the dialogue to the image. Reproduces nearly all of the dialogue and
an estimated 70% of all movie sound.
Centre Rear Speaker :
Used exclusively between the surround speakers in a 6.1
configuration to bring the even further definition to the rear surround
effect.
Surround
Speakers : Side and
back speakers that create the depth and ambience of a soundtrack or recording.
These are the speakers that put you in the middle of the action.
Surround
Back Speakers
:
Used only in a 7.1 configuration, surround back
speakers add an extra dimension to the rear soundfield, making the surround
effects all the more convincing
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Surround
Formats Explained:
