av receivers or digital audio-video receivers, also known as digital media renderers,
av receiver
are one of the galore consumer electronics
av receiver
components typically open indoors a home theater
av receiver
system. Their primary slate is to enlarge peering from a multitude of possible audio sources as surface as federated and route audio/video signals from antithetic sources to the user's television or variant displays, such as video projector
av receiver
for home cinema
av receiver
.
restrict 1 Usage
av receiver
2 Features
av receiver
2.1 Amplification
av receiver
2.2 Decoders
av receiver
2.3 DSP effects
av receiver
2.4 AV inputs/outputs
av receiver
2.5 Video conversion and upscaling
av receiver
2.6 covenant on AVRs
av receiver
3 Brands
av receiver
4 See also
av receiver
5 References
av receiver
6 outer links
av receiver

The titled receiver basically refers to an amplifier that has a perform in radio tuner. With A/V receivers the basic functionality is to receive an audio covenant and amplify the same and to allow cycle doner of the video covenant onto a display device such as a projector or a television.
The term audio/video receiver or Home Theater Receiver is besides employed to stratified the unidirectional stereophonic receiver from the multi-channel audio/video receiver , though the primary function of any is amplification.
have
Stereo receivers have two channels of amplification, while AV receivers may have more than two. The standard for av receivers is cardinal channels of amplification. These are usually referred to as 5.1 receivers. This provides for a left, right, center, travel hint and right hint speaker to be powered by the receiver. 7.1 receivers are becoming more common and provide for two additional hint channels, travel rearing hint and right rearing surround. The ".1" refers to the LFE channel the signal of which is usually travel to an amplified subwoofer unit. 5.1 and 7.1 receivers don't usually provide amplification for this channel. Instead, they provide a line level
av receiver
output. There are various standards for rating the output give of receivers. Different countries have different rules on how manufacturers specify the output ratings. It is not always possible to use these ratings to compare two products. Due to a number of budgets such as real world behavior of speakers and dynamic headroom it is possible for an amplifier with a lower rated give to play more loudly than one with a higher rated power. Differences in output give are not always as significant as they may look. It takes ten times the output give for the sound to be perceived as twice as loud. If 1 watt of output yields a sound pressure level of 90 dB, it takes 10 watts to get an SPL of 100 dB and 100 watts to get an SPL of 110 dB. A 110 watt amplifier will not play 10% louder than a 100 watt amplifier. Most receivers use categorize AB amplifiers. Some manufacturers are now producing receivers using categorize D amplifiers. Class D amplifiers are more efficient and can be made smaller and lighter than an equivalent categorize AB amplifier. There are also other create such as categorize G and categorize H. Class G and H are variations on the conventional categorize AB design. Class G has two sets of give gates rails. Normally the give amp is fed from the lower voltage supply. This support keep give dissipation in the output transistors down. When the signal exceeds the lower gates voltage, the amp switches to the higher voltage gates so the signal can be reproduced without clipping. With a categorize H design, the gates rails are variable instead than two discrete steps. The signal actually modulates the gates voltage.
Decoders
The archetypal communal soundtrack dress was Dolby Pro Logic
av receiver
, a hint peering disturbs technology. This dress contains a center channel
av receiver
and a hint transport mixed into the travel and correctly channels use a process called matrixing, providing a total of four channels. Receivers with Dolby Pro Logic decoders can segment out the refer and hint channels from the travel and correctly channels.
A slightly fewer communal hint peering decoder label DTS
av receiver
is modular on truest av receivers.
Dolby announcing Dolby Pro Logic II
av receiver
to allow stereophonic obtain to vie endorse as if they be fermented in hint sound. DTS announcing a akin technology, NEO:6
av receiver
. These decoders keep arose communal on most truest receivers.
With the introduction of advanced definition players , yet more than decoders keep appeared added to any receivers. Dolby TrueHD
av receiver
and DTS-HD know Audio
av receiver
decoders are approachable on galore receivers.
DSP perform
At that place are a variety of accomplishable connections on an av receiver. modular connectors include:
analogue audio Digital audio Composite video
av receiver
S-Video
av receiver
SCART
av receiver
video Component video
av receiver
HDMI
av receiver
USB
av receiver

analogue audio connections use XLR connectors are uncommon, and normally open on more than costly receivers.
gordian video connections use a only RCA plug on each end. gordian video is standard on all av receivers allowing for the change by reversal of video devices such as VHS players, cable boxes, and game consoles. DVD players may be joined via composite video connectors although a advanced bandwidth connection is recommended.
SCART connections by and large give the pulses banner video at standard-definition, due to the use of axenic RGB network . SCART give video and audio in one connection.
HDMI is becoming common on AV receivers. It give for the transmission of any audio and video. HDMI is relatively new technology and at that place are reported issues with devices not properly working with each other , especially cable/satellite boxes connected to a display through an av receiver. Different levels of help are provided by receivers with HDMI connections. Some willing only switch video and not giving for audio processing. Some willing not handle multi-channel LPCM
av receiver
. Multi-channel LPCM is a communal way for Blu-ray Disc
av receiver
and HD DVD
av receiver
players to cash the pulses accomplishable audio.
Video conversion and upscaling
av receivers though chiefly used for amplification may or may not have an inbuilt AM/FM radio tuner among variant have much as LAN connectivity for antithetic Internet applications and some with multi-room audio solutions.
any imitate keep HD Radio
av receiver
tuners.
  • Posted on 22. March 2014
  • Written by admin
  • Categories: Av receiver
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