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Some Good Tips To Help Choose A Cordless Surround Sound Package
A growing number of wireless surround sound transmitter products claim the ultimate freedom in streaming music all over the house. We will look at the most popular technologies for wireless audio and give some recommendations for selecting the best wireless audio product. Getting audio from your living room to your bedroom can be quite a problem especially in houses which are not wired for audio. Products which resolve this difficulty are mostly based on the following technologies: infrared wireless, RF wireless, wireless LAN or powerline.
Infrared is restricted to line of sight since the audio signal is broadcast as lightwaves and consequently products utilizing this technology, such as infrared wireless surround sound products, are limited to a single room.
RF wireless music products send the music signal via radio waves. These radio wave signals can easily go through walls. The signal is sent either by using FM transmission or digital transmission. FM transmitters are the least expensive option. They provide good 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 products, such as products from Amphony, use a digital protocol. The audio is first converted to digital data before being broadcast. This conversion and transmission in the digital domain will guarantee that the original audio quality is maintained. However, this is only the case of the data is sent uncompressed. Some wireless audio transmitters will apply some type of audio compression. Such products include Bluetooth audio transmitters. Audio compression will degrade the quality of the audio to some extent.
Powerline products broadcast 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 speakers has to be in sync with other non-wireless speakers or video.
Powerline devices use the power mains as a medium to broadcast the audio. These products usually provide excellent range. However, they face problems if there are a number of separate mains circuits in the home. In this case the signal will have difficulty crossing between these circuits. 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 normally build a delay of several seconds into the transmission. Here are some guidelines for choosing a wireless audio system: If you plan to stream audio into several rooms of your house, be sure to pick a system that allows streaming to multiple receivers at the same time. That way you don't have to buy a separate transmitter for every receiver that you are streaming to. Products with some sort of error correction will be more immune against radio interference from other wireless transmitters. Select a digital RF audio transmitter to ensure that the audio quality is maintained. 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 of the audio inputs you need, e.g. speaker inputs, RCA inputs etc. Make sure that you can purchase additional receivers later on as you expand your system. Verify that you can get receivers with speaker outputs for connecting regular loudspeakers as well as receivers with line-level RCA outputs. 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.
Make sure the wireless transmitter provides the audio inputs you need. You may need amplified speaker inputs, RCA audio inputs etc. Make sure that you can purchase individual receivers later on as you expand your system. Verify that you can get receivers with speaker outputs for connecting regular loudspeakers as well as receivers with line-level RCA outputs. Because you may want to connect the transmitter to several sources, you should choose a transmitter that can be adjusted to different signal volume levels to prevent clipping of the audio signal inside the transmitter converter stage. Make sure 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 optimum sound quality. Make sure the receivers can drive speakers with your desired Ohm rating. Choosing a product where the wireless receivers have a small footprint and easy mounting options will help during the set up. 5.8 GHz wireless products normally have less problems with interference from other wireless transmitters than products working at 900 MHz or 2.4 GHz.
A growing number of wireless surround sound transmitter products claim the ultimate freedom in streaming music all over the house. We will look at the most popular technologies for wireless audio and give some recommendations for selecting the best wireless audio product. Getting audio from your living room to your bedroom can be quite a problem especially in houses which are not wired for audio. Products which resolve this difficulty are mostly based on the following technologies: infrared wireless, RF wireless, wireless LAN or powerline.
Infrared is restricted to line of sight since the audio signal is broadcast as lightwaves and consequently products utilizing this technology, such as infrared wireless surround sound products, are limited to a single room.
RF wireless music products send the music signal via radio waves. These radio wave signals can easily go through walls. The signal is sent either by using FM transmission or digital transmission. FM transmitters are the least expensive option. They provide good 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 products, such as products from Amphony, use a digital protocol. The audio is first converted to digital data before being broadcast. This conversion and transmission in the digital domain will guarantee that the original audio quality is maintained. However, this is only the case of the data is sent uncompressed. Some wireless audio transmitters will apply some type of audio compression. Such products include Bluetooth audio transmitters. Audio compression will degrade the quality of the audio to some extent.
Powerline products broadcast 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 speakers has to be in sync with other non-wireless speakers or video.
Powerline devices use the power mains as a medium to broadcast the audio. These products usually provide excellent range. However, they face problems if there are a number of separate mains circuits in the home. In this case the signal will have difficulty crossing between these circuits. 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 normally build a delay of several seconds into the transmission. Here are some guidelines for choosing a wireless audio system: If you plan to stream audio into several rooms of your house, be sure to pick a system that allows streaming to multiple receivers at the same time. That way you don't have to buy a separate transmitter for every receiver that you are streaming to. Products with some sort of error correction will be more immune against radio interference from other wireless transmitters. Select a digital RF audio transmitter to ensure that the audio quality is maintained. 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 of the audio inputs you need, e.g. speaker inputs, RCA inputs etc. Make sure that you can purchase additional receivers later on as you expand your system. Verify that you can get receivers with speaker outputs for connecting regular loudspeakers as well as receivers with line-level RCA outputs. 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.
Make sure the wireless transmitter provides the audio inputs you need. You may need amplified speaker inputs, RCA audio inputs etc. Make sure that you can purchase individual receivers later on as you expand your system. Verify that you can get receivers with speaker outputs for connecting regular loudspeakers as well as receivers with line-level RCA outputs. Because you may want to connect the transmitter to several sources, you should choose a transmitter that can be adjusted to different signal volume levels to prevent clipping of the audio signal inside the transmitter converter stage. Make sure 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 optimum sound quality. Make sure the receivers can drive speakers with your desired Ohm rating. Choosing a product where the wireless receivers have a small footprint and easy mounting options will help during the set up. 5.8 GHz wireless products normally have less problems with interference from other wireless transmitters than products working at 900 MHz or 2.4 GHz.
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