Setting up multi-channel audio such as a home theater system has always been quite complicated and vendors recently have developed unique products and technologies like wireless speaker kit products or virtual surround sound to help simplify this procedure. I will look at several of the latest technologies which were designed to make installing home theater systems a snap. I will illustrate what to look out for when making your buying decision. The majority of recent TVs will be set up as a multi-channel audio system. While historically TVs would contain built-in stereo speakers, these days a number of external loudspeakers are used to let the viewer experience surround sound. In case of 5.1 surround, 6 speakers are used: center, left and right front, left and right rear and a subwoofer. More recent 7.1 systems need a total amount of 8 speakers by adding 2 extra side speakers.
Consequently setting up a home theater has become pretty intricate and long speaker cable runs are often undesirable for aesthetic reasons. Suppliers have lately introduced new devices and technologies. These devices were created to help simplify the setup of home theater systems.
Consequently the setup of home theater products has turn out to be a relatively difficult process. A lot of houses are not pre-wired for surround sound. In addition, long speaker cables are often unattractive. Some technologies have emerged to simplify this procedure.
The advantage of this technology is that only a small number of speakers are needed and no long speaker cord has to be run all through the viewing environment. The disadvantage though is that each human will process sound in a different way because of the dissimilar shape of each human ear. The signal processing of these virtual surround systems is based on a standard model which was calculated with a standard ear. However, virtual surround will not function equally well for each human.
Wireless surround sound products are another method for simplifying home speaker setups and usually include a transmitter component which connects to the source and also wireless amplifiers which will connect to the remote speakers. The transmitter will often come with amplified speaker inputs in addition to line-level inputs and come with a volume control to adjust it to the source audio level.
While a few wireless speaker kits come with a wireless amplifier that connects to two speakers, other products offer separate wireless amplifiers for each loudspeaker. The most basic wireless devices use FM transmission. FM broadcast is prone to noise and audio distortion. More advanced systems employ digital audio transmission to completely preserve the original audio. To ensure that all loudspeakers are in sync in a multi-channel application, make sure that you select a wireless system which has an audio latency of a few milliseconds at most. A large latency would lead to an echo effect. This effect would deteriorate the surround effect. Most wireless devices work in the 900 MHz and 2.4 GHz frequency bands. Some products utilize the less crowded 5.8 GHz frequency band and as a result have less competition from other wireless devices.
A different method, which is often referred to as sound bars uses side-reflecting loudspeakers. There are additional loudspeakers positioned at the front which broadcast the audio for the remote loudspeakers from the front at an angle. The sound is then reflected by walls and appears to be originating from besides or behind the viewer. The effect heavily is dependent upon the interior, particularly the shape of the room and the decoration. It will function well for square rooms with no obstacles and sound reflecting walls. Then again, realistic scenarios frequently will vary from this ideal and reduce the result of this approach.
Consequently setting up a home theater has become pretty intricate and long speaker cable runs are often undesirable for aesthetic reasons. Suppliers have lately introduced new devices and technologies. These devices were created to help simplify the setup of home theater systems.
Consequently the setup of home theater products has turn out to be a relatively difficult process. A lot of houses are not pre-wired for surround sound. In addition, long speaker cables are often unattractive. Some technologies have emerged to simplify this procedure.
The advantage of this technology is that only a small number of speakers are needed and no long speaker cord has to be run all through the viewing environment. The disadvantage though is that each human will process sound in a different way because of the dissimilar shape of each human ear. The signal processing of these virtual surround systems is based on a standard model which was calculated with a standard ear. However, virtual surround will not function equally well for each human.
Wireless surround sound products are another method for simplifying home speaker setups and usually include a transmitter component which connects to the source and also wireless amplifiers which will connect to the remote speakers. The transmitter will often come with amplified speaker inputs in addition to line-level inputs and come with a volume control to adjust it to the source audio level.
While a few wireless speaker kits come with a wireless amplifier that connects to two speakers, other products offer separate wireless amplifiers for each loudspeaker. The most basic wireless devices use FM transmission. FM broadcast is prone to noise and audio distortion. More advanced systems employ digital audio transmission to completely preserve the original audio. To ensure that all loudspeakers are in sync in a multi-channel application, make sure that you select a wireless system which has an audio latency of a few milliseconds at most. A large latency would lead to an echo effect. This effect would deteriorate the surround effect. Most wireless devices work in the 900 MHz and 2.4 GHz frequency bands. Some products utilize the less crowded 5.8 GHz frequency band and as a result have less competition from other wireless devices.
A different method, which is often referred to as sound bars uses side-reflecting loudspeakers. There are additional loudspeakers positioned at the front which broadcast the audio for the remote loudspeakers from the front at an angle. The sound is then reflected by walls and appears to be originating from besides or behind the viewer. The effect heavily is dependent upon the interior, particularly the shape of the room and the decoration. It will function well for square rooms with no obstacles and sound reflecting walls. Then again, realistic scenarios frequently will vary from this ideal and reduce the result of this approach.
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