A Number Of Helpful Hints To Help Pick A Cordless Surround Sound Set
The newest series of wireless surround sound transmitter devices promises streaming of music throughout the home without limits. We will look at the most popular technologies for wireless audio and give some tips for selecting the best wireless audio product.
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 can't penetrate walls. This technology is frequently found in wireless speaker kit products.
RF wireless products will broadcast the signal as RF waves. These waves can without problems go through walls. RF wireless audio devices either use FM transmission or digital audio transmission. FM transmission is cheap but rather prone to static, audio distortion and susceptible to interference. Digital wireless audio transmitter devices, such as products from Amphony, utilize a digital protocol. The audio is first converted to digital data before being transmitted. This method ensures that the audio quality is fully preserved. Some transmitters utilize some type of audio compression, such as Bluetooth transmitters, which will degrade the audio to some degree. Transmitters which broadcast the audio data uncompressed will achieve the highest fidelity.
Products utilizing wireless LAN are useful when streaming audio from a PC. Their downside is that they typically have some fairly high latency, i.e. the signal will be delayed by some amount since wireless LAN was not specifically designed for real-time audio streaming. Also, a number of products require to buy separate wireless LAN modules that are plugged into each audio receiver.
WLAN products are useful for broadcasting audio from a PC. However, wireless LAN was never designed for real-time audio streaming. As a consequence, products using WLAN will introduce some amount of delay to the signal. WLAN receivers typically require purchasing a separate LAN card to be plugged into each receiver.
Here are some pointers for picking the perfect wireless audio system: Try to find a system that can run several wireless receivers from a single transmitter. Ideally an unlimited number of receivers should be supported. That way you don't need to purchase additional transmitters when you start adding receivers in different rooms of your house. Products with some form of error correction will be more resistant against radio interference from other wireless transmitters. Select a digital RF transmitter to preserve the original audio quality, ideally one with an audio latency of less than 10 ms in case of video or other time-sensitive applications.
Choose a transmitter that has all of the audio inputs you need, e.g. speaker inputs, RCA inputs etc. Get a wireless system where you can buy separate receivers later on. You should confirm that you can get receivers for all the different applications you have. Such receivers may include amplified receivers for passive speakers or line-level receivers for active speakers. 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 system provides amplified receivers with a digital amplifier to ensure high power efficiency. This will help keep the receiver cool during operation. In addition, make sure the amplifier offers low audio distortion. This is vital for good sound quality. Check that the amplified receiver can drive speakers with the desired Ohm rating and that it is small and easily mountable for simple set up. Products which operate in the 5.8 GHz frequency band will have less problems with wireless interference than devices utilizing the crowded 900 MHz or 2.4 GHz frequency band.
The newest series of wireless surround sound transmitter devices promises streaming of music throughout the home without limits. We will look at the most popular technologies for wireless audio and give some tips for selecting the best wireless audio product.
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 can't penetrate walls. This technology is frequently found in wireless speaker kit products.
RF wireless products will broadcast the signal as RF waves. These waves can without problems go through walls. RF wireless audio devices either use FM transmission or digital audio transmission. FM transmission is cheap but rather prone to static, audio distortion and susceptible to interference. Digital wireless audio transmitter devices, such as products from Amphony, utilize a digital protocol. The audio is first converted to digital data before being transmitted. This method ensures that the audio quality is fully preserved. Some transmitters utilize some type of audio compression, such as Bluetooth transmitters, which will degrade the audio to some degree. Transmitters which broadcast the audio data uncompressed will achieve the highest fidelity.
Products utilizing wireless LAN are useful when streaming audio from a PC. Their downside is that they typically have some fairly high latency, i.e. the signal will be delayed by some amount since wireless LAN was not specifically designed for real-time audio streaming. Also, a number of products require to buy separate wireless LAN modules that are plugged into each audio receiver.
WLAN products are useful for broadcasting audio from a PC. However, wireless LAN was never designed for real-time audio streaming. As a consequence, products using WLAN will introduce some amount of delay to the signal. WLAN receivers typically require purchasing a separate LAN card to be plugged into each receiver.
Here are some pointers for picking the perfect wireless audio system: Try to find a system that can run several wireless receivers from a single transmitter. Ideally an unlimited number of receivers should be supported. That way you don't need to purchase additional transmitters when you start adding receivers in different rooms of your house. Products with some form of error correction will be more resistant against radio interference from other wireless transmitters. Select a digital RF transmitter to preserve the original audio quality, ideally one with an audio latency of less than 10 ms in case of video or other time-sensitive applications.
Choose a transmitter that has all of the audio inputs you need, e.g. speaker inputs, RCA inputs etc. Get a wireless system where you can buy separate receivers later on. You should confirm that you can get receivers for all the different applications you have. Such receivers may include amplified receivers for passive speakers or line-level receivers for active speakers. 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 system provides amplified receivers with a digital amplifier to ensure high power efficiency. This will help keep the receiver cool during operation. In addition, make sure the amplifier offers low audio distortion. This is vital for good sound quality. Check that the amplified receiver can drive speakers with the desired Ohm rating and that it is small and easily mountable for simple set up. Products which operate in the 5.8 GHz frequency band will have less problems with wireless interference than devices utilizing the crowded 900 MHz or 2.4 GHz frequency band.
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