Dolby Surround; Dts Digital Surround; Dvd Region Codes - KEF KIT200 Manuel D'installation

dolby surround

1. Dolby Digital
Dolby Digital is the multi-channel digital signal format developed by Dolby Laboratories. Dolby Digital consists of up
to "5.1" channels – front left, front right, centre, surround left, surround right and an additional channel
exclusively reserved for additional deep bass sound effects. (The Low Frequency Effects (LFE) channel containing bass
frequencies of up to 120Hz). Unlike the analogue Dolby Pro Logic format, Dolby Digital's channels can all contain full
range sound information, from the lowest bass, up to the highest frequencies (22kHz). The signals within each channel
are distinct from the others, allowing pinpoint sound imaging, and Dolby Digital offers tremendous dynamic range
from the most powerful sound effects to the quietest, softest sounds, free from noise and distortion.
2. Dolby Pro Logic II
Dolby Pro Logic II is a new multi-channel playback format developed by Dolby Laboratories using feedback logic
steering technology and offering improvements over conventional Dolby Pro Logic circuits. Dolby Pro Logic II can be
used to decode not only sources recorded in Dolby Surround but also regular stereo sources into five channels (front
left, front right, centre, surround left and surround right) to achieve surround sound. Whereas with conventional
Dolby Pro Logic the surround channel playback frequency band was limited, Dolby Pro Logic II offers a wider band
range (20Hz to 20kHz or greater). In addition the surround channels were monoaural (the surround left and right
channels were the same) with previous Dolby Pro Logic, but with Dolby Pro Logic II they are played as stereo signals.
3. Dolby Surround
These are sources in which three or more channels of surround have been recorded as two channels using Dolby
Surround encoding technology. Dolby Surround is used for the sound tracks of movies recorded on DVDs, LDs and
video cassettes to be played on VCRs, as well as for the stereo broadcast signals of FM radio, TV, satellite
broadcasts and cable TV. Decoding these signals with Dolby Pro Logic makes it possible to achieve multi-channel
surround playback. The signals can also be played on ordinary stereo equipment, in which case they provide normal
stereo sound. There are two types of DVD Dolby SURROUND recording signals. 1) 2-channel PCM stereo signals 2) 2-

dts digital surround

channel Dolby Digital signals.
The KEF Instant Theatre is manufactured under license from Dolby Laboratories. "Dolby", "Pro Logic" and the
double-D symbol are trademarks of Dolby Laboratories.
macrovision
Digital Theatre Surround (also called simply DTS) is a multi-channel digital signal format developed by Digital Theatre
Systems. DTS offers the same "5.1" playback channels as Dolby Digital (front left, front right and centre, surround
left and surround right) as well as the stereo 2-channel mode. The signals for the different channels are fully
independent, eliminating the risk of deterioration of sound quality due to interference between signals and crosstalk
progressive scan output at 525p and 625p
etc. DTS features a relatively higher bit rate as compared to Dolby Digital (1234 kbps for CDs and LDs, 1536 kbps
for DVDs) so it operates with a relatively low compression rate. Because of this the amount of data is great, and
when DTS playback is used in movie theatres, a separate CDROM synchronised with the film is played. With LDs and
DVDs, there is of course no need for an extra disc;

dvd region codes

the pictures and sound can be recorded simultaneously on the same disc, so the discs can be handled in the same way
as discs with other formats. There are also music CDs recorded in DTS. These CDs include 5.1-channel surround
signals (compared to two channels on current CDs). They do not include picture data, but they offer surround
2 8