A Number Of Good Tips To Help Decide On A Cordless Surround Sound Package
The latest range of wireless surround sound transmitter products claims streaming of music throughout the home without limits. We will have a look at different products and technologies to find out in how far these products are practical for whole-house audio uses and what to look out for when purchasing a wireless system.
Infrared wireless audio devices are restricted to line-of-sight applications, i.e. only function within a single room because the signal is broadcast as infrared light which cannot penetrate walls. This technology is frequently found in wireless speaker kit products.
Infrared is restricted to line of sight because the audio signal is broadcast as lightwaves and consequently products utilizing this technology, such as infrared wireless surround sound products, are restricted to a single room. RF wireless products broadcast the audio as RF waves - either by using FM transmission or digital transmission - and can for that reason without problems transmit through walls. FM transmitters are the least expensive alternative. They offer decent range but the audio signal is prone to audio distortion and noise and is extremely susceptible to interference from other wireless transmitters.
Digital wireless audio transmitter devices, such as products from Amphony, use a digital protocol. The audio is first converted to digital data before being broadcast. Some wireless audio transmitters will employ audio compression, such as Bluetooth transmitters which will lower the audio quality to some extent. Digital wireless audio transmitters which broadcast the audio uncompressed offer the highest audio fidelity.
Powerline products send the audio by means of the power mains and offer great range. They run into problems in homes where there are individual mains circuits in terms of being able to cross over into another circuit. Another problem facing powerline products are strong power surges and spikes. Such surges can bring about dropouts in the audio due to errors in the transmission. To safeguard against these errors, powerline products typically build a delay of several seconds into the transmission.
Powerline products send the audio by means of the power mains and provide great range. They run into problems in homes where there are separate mains circuits in terms of being able to cross over into another circuit. Also, these products build in a delay of a number of seconds to safeguard against transmission errors during power surges and spikes which prevents their use in applications where the audio from wireless loudspeakers has to be in sync with other non-wireless speakers or video.
Here are some recommendations for choosing a wireless audio system: If you plan to stream audio into numerous rooms of your house, be certain to select a system that permits streaming to several receivers at the same time. That way you don't have to buy a separate transmitter for each receiver that you are streaming to. Some products have some form of error correction built in which will help guard against dropouts in case of strong wireless interference. Select a digital RF transmitter to preserve the original audio quality, preferably one with an audio latency of less than 10 ms in case of video or other time-sensitive applications.
Check that the amplified wireless receivers have built-in digital amplifiers with low distortion figures. This will keep the receiver cool due to high amplifier power efficiency and provide optimum sound quality. Make sure the receivers can drive speakers with your preferred Ohm rating. Choosing a product where the wireless receivers have a small footprint and easy mounting options will help in the course of the installation. 5.8 GHz wireless devices normally have less trouble with interference from other wireless transmitters than products operating at 900 MHz or 2.4 GHz.
The latest range of wireless surround sound transmitter products claims streaming of music throughout the home without limits. We will have a look at different products and technologies to find out in how far these products are practical for whole-house audio uses and what to look out for when purchasing a wireless system.
Infrared wireless audio devices are restricted to line-of-sight applications, i.e. only function within a single room because the signal is broadcast as infrared light which cannot penetrate walls. This technology is frequently found in wireless speaker kit products.
Infrared is restricted to line of sight because the audio signal is broadcast as lightwaves and consequently products utilizing this technology, such as infrared wireless surround sound products, are restricted to a single room. RF wireless products broadcast the audio as RF waves - either by using FM transmission or digital transmission - and can for that reason without problems transmit through walls. FM transmitters are the least expensive alternative. They offer decent range but the audio signal is prone to audio distortion and noise and is extremely susceptible to interference from other wireless transmitters.
Digital wireless audio transmitter devices, such as products from Amphony, use a digital protocol. The audio is first converted to digital data before being broadcast. Some wireless audio transmitters will employ audio compression, such as Bluetooth transmitters which will lower the audio quality to some extent. Digital wireless audio transmitters which broadcast the audio uncompressed offer the highest audio fidelity.
Powerline products send the audio by means of the power mains and offer great range. They run into problems in homes where there are individual mains circuits in terms of being able to cross over into another circuit. Another problem facing powerline products are strong power surges and spikes. Such surges can bring about dropouts in the audio due to errors in the transmission. To safeguard against these errors, powerline products typically build a delay of several seconds into the transmission.
Powerline products send the audio by means of the power mains and provide great range. They run into problems in homes where there are separate mains circuits in terms of being able to cross over into another circuit. Also, these products build in a delay of a number of seconds to safeguard against transmission errors during power surges and spikes which prevents their use in applications where the audio from wireless loudspeakers has to be in sync with other non-wireless speakers or video.
Here are some recommendations for choosing a wireless audio system: If you plan to stream audio into numerous rooms of your house, be certain to select a system that permits streaming to several receivers at the same time. That way you don't have to buy a separate transmitter for each receiver that you are streaming to. Some products have some form of error correction built in which will help guard against dropouts in case of strong wireless interference. Select a digital RF transmitter to preserve the original audio quality, preferably one with an audio latency of less than 10 ms in case of video or other time-sensitive applications.
Check that the amplified wireless receivers have built-in digital amplifiers with low distortion figures. This will keep the receiver cool due to high amplifier power efficiency and provide optimum sound quality. Make sure the receivers can drive speakers with your preferred Ohm rating. Choosing a product where the wireless receivers have a small footprint and easy mounting options will help in the course of the installation. 5.8 GHz wireless devices normally have less trouble with interference from other wireless transmitters than products operating at 900 MHz or 2.4 GHz.
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