Several Secrets To Help Decide On A Cordless Surround Sound System
A growing number of wireless surround sound transmitter products promise the ultimate freedom in streaming music all over the house. We will look at the most popular technologies for wireless audio and give some suggestions for choosing the best wireless audio product. If your house is not wired for audio then you face quite a challenge when you want to get your music from your living room to your bed room. Often the audio source cannot be moved. Running speaker wires between rooms will be costly and consequently many people are looking for alternatives. There are a number of technologies solving this problem. These include infrared wireless, RF wireless, wireless LAN (WLAN) and powerline.
Getting audio from your living room to your bed room can be quite a problem in particular in buildings which are not wired for audio. The following technologies are used by devices solving this problem: infrared, RF, wireless LAN and powerline.
RF wireless audio devices broadcast the audio signal via radio waves. These radio wave signals can without difficulty go through walls. The signal is sent either by utilizing FM transmission or digital transmission. FM transmission is economical but rather prone to static, audio distortion and susceptible to interference. Products using 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. 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 send the audio uncompressed offer the highest audio fidelity.
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. Some wireless audio transmitters will employ audio compression, such as Bluetooth transmitters which will lower the audio quality to some degree. Digital wireless audio transmitters which broadcast the audio uncompressed offer the highest audio fidelity.
Wireless LAN (WLAN) products are useful when streaming from a PC but will add some amount of latency or delay to the signal since wireless LAN was not originally designed for real-time audio streaming. WLAN receivers usually require purchasing a separate LAN card to be plugged into every receiver.
Powerline products broadcast the audio by means of the power mains and offer great range. They run into problems in houses where there are individual 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. Now we'll give you some suggestions for shopping for a wireless system: Go for a system that supports multiple wireless receivers if you plan to stream audio to several rooms so that you don't have to purchase a separate transmitter for every receiver. Products with some form of error correction will be more resistant against radio interference from other wireless transmitters. Digital RF audio transmitters will be able to maintain the original audio quality. If you have time-critical applications where sync of the audio is crucial then you should get a transmitter with a low audio latency. An audio latency of less than 10 ms would be appropriate for most scenarios.
Choose 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 offer all of the necessary outputs, e.g. amplified speaker outputs, RCA outputs etc. Select a transmitter that can adjust the audio volume of the input stage. This will give you the flexibility to connect the transmitter to any type of equipment with different signal levels. Otherwise the audio may get clipped inside the transmitter converter stage or the dynamic range is not fully utilized.
Select a transmitter that has all of the audio inputs you need, e.g. speaker inputs, RCA inputs etc. Make sure that you can purchase separate receivers later on as you expand your system. Ensure that you can get receivers with speaker outputs for connecting regular loudspeakers as well as receivers with line-level RCA outputs. Pick a transmitter that can regulate the audio volume of the input stage. This will give you the flexibility to connect the transmitter to any type 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. For high amplifier power efficiency and best sound quality, check that the amplified receiver has a built-in low-distortion digital amplifier. Choose a system which provides receivers that can drive speakers with the preferred 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 devices normally have less trouble with interference from other wireless transmitters than products operating at 900 MHz or 2.4 GHz.
A growing number of wireless surround sound transmitter products promise the ultimate freedom in streaming music all over the house. We will look at the most popular technologies for wireless audio and give some suggestions for choosing the best wireless audio product. If your house is not wired for audio then you face quite a challenge when you want to get your music from your living room to your bed room. Often the audio source cannot be moved. Running speaker wires between rooms will be costly and consequently many people are looking for alternatives. There are a number of technologies solving this problem. These include infrared wireless, RF wireless, wireless LAN (WLAN) and powerline.
Getting audio from your living room to your bed room can be quite a problem in particular in buildings which are not wired for audio. The following technologies are used by devices solving this problem: infrared, RF, wireless LAN and powerline.
RF wireless audio devices broadcast the audio signal via radio waves. These radio wave signals can without difficulty go through walls. The signal is sent either by utilizing FM transmission or digital transmission. FM transmission is economical but rather prone to static, audio distortion and susceptible to interference. Products using 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. 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 send the audio uncompressed offer the highest audio fidelity.
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. Some wireless audio transmitters will employ audio compression, such as Bluetooth transmitters which will lower the audio quality to some degree. Digital wireless audio transmitters which broadcast the audio uncompressed offer the highest audio fidelity.
Wireless LAN (WLAN) products are useful when streaming from a PC but will add some amount of latency or delay to the signal since wireless LAN was not originally designed for real-time audio streaming. WLAN receivers usually require purchasing a separate LAN card to be plugged into every receiver.
Powerline products broadcast the audio by means of the power mains and offer great range. They run into problems in houses where there are individual 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. Now we'll give you some suggestions for shopping for a wireless system: Go for a system that supports multiple wireless receivers if you plan to stream audio to several rooms so that you don't have to purchase a separate transmitter for every receiver. Products with some form of error correction will be more resistant against radio interference from other wireless transmitters. Digital RF audio transmitters will be able to maintain the original audio quality. If you have time-critical applications where sync of the audio is crucial then you should get a transmitter with a low audio latency. An audio latency of less than 10 ms would be appropriate for most scenarios.
Choose 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 offer all of the necessary outputs, e.g. amplified speaker outputs, RCA outputs etc. Select a transmitter that can adjust the audio volume of the input stage. This will give you the flexibility to connect the transmitter to any type of equipment with different signal levels. Otherwise the audio may get clipped inside the transmitter converter stage or the dynamic range is not fully utilized.
Select a transmitter that has all of the audio inputs you need, e.g. speaker inputs, RCA inputs etc. Make sure that you can purchase separate receivers later on as you expand your system. Ensure that you can get receivers with speaker outputs for connecting regular loudspeakers as well as receivers with line-level RCA outputs. Pick a transmitter that can regulate the audio volume of the input stage. This will give you the flexibility to connect the transmitter to any type 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. For high amplifier power efficiency and best sound quality, check that the amplified receiver has a built-in low-distortion digital amplifier. Choose a system which provides receivers that can drive speakers with the preferred 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 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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