Several Suggestions To Help Select A Cordless Surround Sound Package
Recently more and more wireless surround sound transmitter products have appeared which promise to deliver the ultimate freedom of broadcasting music throughout the home. We will have a look at various products and technologies to find out in how far these devices are effective for whole-house audio uses and what to look out for when buying a wireless system.
Getting audio from your living room to your bedroom can be quite a problem particularly in houses which are not wired for audio. There are several technologies solving this problem. These include infrared wireless, RF wireless, wireless LAN (WLAN) and powerline.
RF wireless products will send the signal as RF waves. These waves can without difficulty penetrate walls. RF wireless audio products either make use of FM transmission or digital audio transmission. The least expensive option is FM transmission. Products using FM transmission, on the other hand, have a number of drawbacks. These include degradation of the audio quality due to static or hiss and audio distortion. In addition, FM transmitter products are also quite susceptible to interference from other wireless transmitters.
Products utilizing digital wireless audio transmission, such as Amphony audio transmitter products, employ a digital protocol in which the audio is converted to a digital signal prior to transmission. This method guarantees that the audio quality is entirely maintained. Some transmitters use some type of audio compression, such as Bluetooth transmitters, which will degrade the audio to some extent. Transmitters which broadcast the audio data uncompressed will achieve the highest fidelity.
Powerline products use the power mains to distribute audio and provide large range but run into trouble if there are individual mains circuits in the home in terms of crossing between circuits. Another challenge 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 devices utilize the power mains as a medium to send the music. These products typically provide excellent range. However, they face problems if there are a number of separate mains circuits in the house. In this case the signal will have difficulty crossing between these circuits. Also, these products build in a delay of several seconds to safeguard against transmission errors during power surges and spikes which prevents their use in applications where the audio from wireless speakers has to be in sync with other non-wireless speakers or video. Here are some guidelines 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 purchase a separate transmitter for every receiver that you are streaming to. Choosing a product with some sort of error correction will help mitigate against strong RF interference. Such interference can be brought on by other wireless transmitters. Choose a digital RF audio transmitter to guarantee that the audio quality is preserved. Make sure the audio delay is smaller than 10 ms if you have a real-time application such as video.
Pick a transmitter that has all the audio inputs you need, such as speaker inputs, line-level RCA inputs etc. Select a system where you can add receivers later on which offer all of the necessary outputs, e.g. amplified speaker outputs, RCA outputs etc. If you go with a digital audio transmitter, choose one with an input audio level control knob to avoid the music signal from clipping inside the transmitter audio converter. This will guarantee optimum dynamic range regardless of the signal level of your equipment.
Select a transmitter that has all of the audio inputs you need, e.g. speaker inputs, RCA inputs etc. Choose a system where you can add receivers later on which provide all of the necessary outputs, e.g. amplified speaker outputs, RCA outputs etc. Select a transmitter that can regulate the audio volume of the input stage. This will give you the versatility to connect the transmitter to any kind of equipment with different signal levels. Otherwise the audio may get clipped inside the transmitter converter stage or the dynamic range is not fully used. Ensure that the amplified wireless receivers contain built-in digital amplifiers with low distortion figures. This will keep the receiver cool due to high amplifier power efficiency and offer maximum sound quality. Pick a system that offers receivers that can drive speakers with the desired Ohm rating. Make sure the receivers have a small form factor and are easily mountable. This will help during the installation. 5.8 GHz wireless products normally have less trouble with interference from other wireless transmitters than products working at 900 MHz or 2.4 GHz.
Recently more and more wireless surround sound transmitter products have appeared which promise to deliver the ultimate freedom of broadcasting music throughout the home. We will have a look at various products and technologies to find out in how far these devices are effective for whole-house audio uses and what to look out for when buying a wireless system.
Getting audio from your living room to your bedroom can be quite a problem particularly in houses which are not wired for audio. There are several technologies solving this problem. These include infrared wireless, RF wireless, wireless LAN (WLAN) and powerline.
RF wireless products will send the signal as RF waves. These waves can without difficulty penetrate walls. RF wireless audio products either make use of FM transmission or digital audio transmission. The least expensive option is FM transmission. Products using FM transmission, on the other hand, have a number of drawbacks. These include degradation of the audio quality due to static or hiss and audio distortion. In addition, FM transmitter products are also quite susceptible to interference from other wireless transmitters.
Products utilizing digital wireless audio transmission, such as Amphony audio transmitter products, employ a digital protocol in which the audio is converted to a digital signal prior to transmission. This method guarantees that the audio quality is entirely maintained. Some transmitters use some type of audio compression, such as Bluetooth transmitters, which will degrade the audio to some extent. Transmitters which broadcast the audio data uncompressed will achieve the highest fidelity.
Powerline products use the power mains to distribute audio and provide large range but run into trouble if there are individual mains circuits in the home in terms of crossing between circuits. Another challenge 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 devices utilize the power mains as a medium to send the music. These products typically provide excellent range. However, they face problems if there are a number of separate mains circuits in the house. In this case the signal will have difficulty crossing between these circuits. Also, these products build in a delay of several seconds to safeguard against transmission errors during power surges and spikes which prevents their use in applications where the audio from wireless speakers has to be in sync with other non-wireless speakers or video. Here are some guidelines 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 purchase a separate transmitter for every receiver that you are streaming to. Choosing a product with some sort of error correction will help mitigate against strong RF interference. Such interference can be brought on by other wireless transmitters. Choose a digital RF audio transmitter to guarantee that the audio quality is preserved. Make sure the audio delay is smaller than 10 ms if you have a real-time application such as video.
Pick a transmitter that has all the audio inputs you need, such as speaker inputs, line-level RCA inputs etc. Select a system where you can add receivers later on which offer all of the necessary outputs, e.g. amplified speaker outputs, RCA outputs etc. If you go with a digital audio transmitter, choose one with an input audio level control knob to avoid the music signal from clipping inside the transmitter audio converter. This will guarantee optimum dynamic range regardless of the signal level of your equipment.
Select a transmitter that has all of the audio inputs you need, e.g. speaker inputs, RCA inputs etc. Choose a system where you can add receivers later on which provide all of the necessary outputs, e.g. amplified speaker outputs, RCA outputs etc. Select a transmitter that can regulate the audio volume of the input stage. This will give you the versatility to connect the transmitter to any kind of equipment with different signal levels. Otherwise the audio may get clipped inside the transmitter converter stage or the dynamic range is not fully used. Ensure that the amplified wireless receivers contain built-in digital amplifiers with low distortion figures. This will keep the receiver cool due to high amplifier power efficiency and offer maximum sound quality. Pick a system that offers receivers that can drive speakers with the desired Ohm rating. Make sure the receivers have a small form factor and are easily mountable. This will help during the installation. 5.8 GHz wireless products normally have less trouble with interference from other wireless transmitters than products working at 900 MHz or 2.4 GHz.
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