The elimination of the large mess of cables has led to a wide range of wireless audio transmitter products over the years that promise to solve your home audio equipment. We will take a look at the latest products to see if they keep their promises to eliminate cable clutter, and we consider it as a change in technology has had an impact of these products.
The wireless transmission of music began with the launch of commercial radio programs several decades ago. FMThe radio is still, though some recent technologies such as satellite radio and digital radio formats like HD Radio and DAB radio have begun to replace conventional FM radio popular. Today, a variety of consumer devices such as wireless microphones are available, wireless surround sound kits, Bluetooth audio transmitter, baby monitors, etc., to eliminate the cable through the wireless transmission of audio.
One of the key applications for wireless audio is to distribute the music throughout the houseand the creation of speakers without running speaker cable which is a big problem in houses that are not connected to the audio. Not every technology is ideal when it comes to wireless audio as we are coming out.
Consider the conventional technique, at first sight: FM broadcasts. Audio FM transmitter to send the audio signal through a radio frequency, which is evolving on the audio signal frequency. This method is called frequency modulation or FM shortly. The largestAdvantage of FM transmitters is their simplicity and their cost and coverage. As a result of using the most current 900-MHz wireless transmission of FM headphones. However, FM has serious drawbacks.
The first is the fact that the transmission of noise and then it will resume some hiss or static. The amount of noise actually varies depending on the location of the radio or receiver. This is due to the fact that the radio signal bounces off the walls and stand onvarious locations. This phenomenon is called multi-fading. Some wireless FM transmitter with two antennas in an experiment with this phenomenon (diversity) receiver to deal with. Also, just pick up FM interference transmissions from wireless devices and other products.
Bluetooth-based audio networks have recently gained popularity. Bluetooth is a popular wireless protocol that has been developed primarily as an interface between the computer peripheral products. Bluetooth AudioTransmitter converts the audio signal into digital information and then transmitted via the Bluetooth protocol. Bluetooth is standardized fairly robust in terms of interference in the well. Bluetooth is, but some problems in terms of wireless audio, because they were not originally developed for wireless audio streaming. The first disadvantage is the limited range, usually 30 feet or less would be. The second problem is the fact that Bluetooth is not enough space to transmit CD-quality audio andTherefore, the sound is first compressed. This compression causes a loss of audio quality depending on the degree of compression. The last problem is the fact that Bluetooth is a delay in the signal (also known as latency), which is a problem when used in conjunction with the video, because the sound is no longer used synchronously or imagine in a surround sound setup where some of the speakers would be out of sync with the hard-wired speakers.
Satellite radio and digital terrestrial radioTechnologies offer a high range, but on a vast audio-compression leads to a deterioration of the audio signal and an audio delay of several seconds.
New technologies to transfer digital audio without compression. Avoiding compression audio signal to maintain the original quality. The audio latency of some of these products is less than 1 ms, and then these technologies are used in wireless speaker kit for home theater configurations.
Through the use of errorCorrecting these technologies with the interference of competing wireless devices vital to cope in today's noisy environment. Some stations operate at 5.8 GHz frequency This space is less crowded than 900 MHz or 2.4 GHz, resulting in further improvement in terms of reliability. Unlike Bluetooth, can have any number of wireless receiver from a single wireless transmitter audio, which is a concern in the distribution function of the audio in multiple rooms in a house.
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