How Does Wireless Speakers Work?

The Need of Wireless Speakers

Running cables throughout the house to interconnect speakers with tuner, audio receiver etc. is a common complaint against home audio systems. With increasing number of new channels added to home audio equipment, it becomes really challenging to connect the speakers to the audio sources.

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Just imagine a digital surround sound system with 7 speakers and a subwoofer need 7 cables ( 1 for each speaker) running around your house making it a tripping hazard. Not just that, among 7 at least 4 of the speakers should be no less than 10 feet away from the centre or rear of your listening room.

Mechanism of Wireless Speakers

Wireless speakers operate in the same fashion as the regular speakers  but with the added benefit of a transmitter replacing wires. Usually wireless speakers have a range of minimum 150 feet of the transmitter, which is way beyond the range you might ever need. Wireless speakers rely on batteries or an AC adapter for power. Battery power makes your system mobile as you can move around as far as into alternate rooms or outdoors without losing the source signal.

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How Does the Transmission Takes place?

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Once you switch on music or a DVD on your computer, the transmitter receives a signal from the computer. Then, the  transmitter transforms the signal into one same as that of an FM radio. That signal broadcasts on a particular frequency to avoid interference from other objects. It is broadcasted within a specific range in a circular radius in such a way that any device that can pick up that kind of signal will eventually receive sound from the computer. There speakers already have small built in receivers for decoding the signal into standard audio information for listening. This complete process takes place in real time, thus there is no time difference between the moment you press “Play” on your computer to the moment you hear sound from your speakers.

Role of Wireless Speakers in Home Theaters

Wireless speakers are also capable of decoding discrete audio information such as standard home theater. Meaning that if the computer is aware that a particular bit of sound should be coming out of the front right speaker, then it will broadcast that specific bit of sound directly to the front right speaker. This scenario is used typically while playing DVD movies. So your wireless speakers will provide output only if the sound card on your computer supports discrete audio.

How to Select the Right Wireless Speakers?

Quality – Basically quality of wireless speakers depends largely on the model. While cheap ones generally sound distorted, superior models can provide quite good quality audio sound. These superior speakers also tend to last longer without giving much problem

Compatibility with Devices- A good wireless speaker should be able to connect to a variety of other devices via industry-standard technologies

Portability – Choose a possibly lightweight wireless speaker which should be enough to move from one location to another, with good battery life

Style – Last but not the least, it should have an aesthetic appeal.

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