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Guidelines For Choosing The Best Wireless Audio Transmitter Product For Whole-House Audio Streaming
The latest series of wireless audio transmitter devices promises streaming of music throughout the house without limits. We will examine if these latest devices are suitable for whole-house audio. Also, we will give vital tips for selecting a wireless audio system.
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 bedroom. Often the audio source cannot be moved. Running speaker wires between rooms will be costly and as a result 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.
Infrared products broadcast the audio as lightwaves. Light can’t go through walls. For that reason products using infrared, such as wireless surround sound kits, are limited to a single room.
RF wireless products will send the signal as RF waves. These waves can easily penetrate walls. RF wireless audio devices either use FM transmission or digital audio transmission. The least expensive choice 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 before transmission. This method guarantees that the audio quality is entirely maintained. Some transmitters utilize 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 maximum fidelity.
Products utilizing wireless LAN are useful when streaming audio from a PC. Their drawback is that they generally have some fairly high latency, i.e. the signal will be delayed by some amount since wireless LAN was not particularly designed for real-time audio streaming. WLAN receivers often do not have built-in network access. As a result, such products often require purchasing separate LAN cards. These cards are then plugged into each receiver.
Powerline products utilize the power mains as a medium to broadcast the music. These products usually provide excellent range. However, they face problems if there are several separate mains circuits in the house. In this case the signal will have problems crossing between these circuits. 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 tips for choosing the optimum 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 extra transmitters when you begin adding receivers in different rooms of your house. Some products have some type of error correction built in which will help guard against dropouts in case of strong wireless interference. Pick a digital RF transmitter to maintain the original audio quality, preferably one with an audio latency of less than 10 ms in case of video or other time-sensitive applications.
Make sure the wireless transmitter offers the audio inputs you need. You may need amplified speaker inputs, RCA audio inputs etc. Make sure that you can buy 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, select one with an input audio level control knob to avoid the audio signal from clipping inside the transmitter audio converter. This will guarantee optimum dynamic range regardless of the signal level of your equipment.
Ensure 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 offer optimum sound quality. Make sure the receivers can drive speakers with your desired Ohm rating. Selecting a product where the wireless receivers have a small footprint and easy mounting options will help during the installation. Devices which operate in the 5.8 GHz frequency band will have less trouble with wireless interference than products utilizing the crowded 900 MHz or 2.4 GHz frequency band.
House Music Production Tutorial (Creating a Drop) 1 of 2
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