Using Home Theater Audio Receivers
When pondering how to put together a home theater system, one should not forget an essential component to the audio and visual experience. Home theater audio and video are controlled by a receiver which is the central hub where the inputs and outputs of the home theater are located.
A home theater receiver combines the functions of three components. One, a tuner for AM and FM, in some instances high definition radio or Sirius Satellite or Internet radio. Secondly, a preamp that controls the audio or video source selected - Bul-ray play, DVD player, iPod etc. Thirdly, a built in multi-channel amplifier that conveys the surround sound signals to the speakers and also provides power to the speakers.
The advanced audio visual receiver (AVR) is a involved device, perhaps one of the more convoluted electronic devices in the home. It has a computer, amplifiers, audio signal processing chips, signal converter chips. Now many AVRs have video processing chips as well. The main routes in an AVR are: Power supply; Processor; Analog Audio; Digital Audio; Analog Video; Digital Video; Amplifier.
All of these groups can be on one or separate circuit boards, or some could be synthesized onto a single circuit board. Precaution must be taken in the architecture such that circuits don't affect each other. There's also the necessity to handle physical factors such as connector placement and air flow for proper ventilation.
Stereo receivers have two channels of amplification, while AV receivers may have more than two. The standard for AV receivers is five channels of amplification. These are usually referred to as 5.1 receivers. This provides for a left, right, center, left surround and right surround speaker to be powered by the receiver. 7.1 receivers are becoming more common and provide for two additional surround channels, left rear surround and right rear surround.
AV receivers usually provide one or more decoders for sources with more than two channels of audio information. This is most common with movie soundtracks, which use one of a variety of different types of encoding formats.
As the quantity of playback channels were increased on receivers, additional decoders have been added to some receivers. For instance, Dolby Labs created Dolby Pro Logic IIx to make use of receivers with more than five channels of playback. With the release of high definition players like Blu-ray Disc and HD DVD, even more decoders have been added to some receivers. Dolby TrueHD and DTS-HD Master Audio decoders are featured on many receivers.
All this information can be tough to absorb, however many web resources revolve around receivers alone. When thinking of upgrading or building from scratch a home theater audio and video system, find out about the receivers available to choose the best for your home theater needs.
A home theater receiver combines the functions of three components. One, a tuner for AM and FM, in some instances high definition radio or Sirius Satellite or Internet radio. Secondly, a preamp that controls the audio or video source selected - Bul-ray play, DVD player, iPod etc. Thirdly, a built in multi-channel amplifier that conveys the surround sound signals to the speakers and also provides power to the speakers.
The advanced audio visual receiver (AVR) is a involved device, perhaps one of the more convoluted electronic devices in the home. It has a computer, amplifiers, audio signal processing chips, signal converter chips. Now many AVRs have video processing chips as well. The main routes in an AVR are: Power supply; Processor; Analog Audio; Digital Audio; Analog Video; Digital Video; Amplifier.
All of these groups can be on one or separate circuit boards, or some could be synthesized onto a single circuit board. Precaution must be taken in the architecture such that circuits don't affect each other. There's also the necessity to handle physical factors such as connector placement and air flow for proper ventilation.
Stereo receivers have two channels of amplification, while AV receivers may have more than two. The standard for AV receivers is five channels of amplification. These are usually referred to as 5.1 receivers. This provides for a left, right, center, left surround and right surround speaker to be powered by the receiver. 7.1 receivers are becoming more common and provide for two additional surround channels, left rear surround and right rear surround.
AV receivers usually provide one or more decoders for sources with more than two channels of audio information. This is most common with movie soundtracks, which use one of a variety of different types of encoding formats.
As the quantity of playback channels were increased on receivers, additional decoders have been added to some receivers. For instance, Dolby Labs created Dolby Pro Logic IIx to make use of receivers with more than five channels of playback. With the release of high definition players like Blu-ray Disc and HD DVD, even more decoders have been added to some receivers. Dolby TrueHD and DTS-HD Master Audio decoders are featured on many receivers.
All this information can be tough to absorb, however many web resources revolve around receivers alone. When thinking of upgrading or building from scratch a home theater audio and video system, find out about the receivers available to choose the best for your home theater needs.
About the Author:
I'm an electronics expert with a particular interest in LG home theater systems. You may also be interested in reading more information about Seattle Hi-Fi.
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