DAB is the traditional analog broadcasting AM, FM radio - after the third generation of digital signal radio, it appears to be a revolution of broadcast technology. Digital radio has the noise, anti-jamming, resistance to radio waves propagation decline, suitable for high-speed mobile receiving etc advantages. It provides the stereo sound quality CD level, almost zero distortion, the signal can be achieved, "the crystal transparent" broadcast timbre, especially suitable for the "broadcast classical music", "" symphony music", "popular music" etc, by professional musicians, music is the audio fancier enthusiasts and collectibles! And in a certain range from multiple paths, to ensure the disturbance effect of fixed, carrying and mobile receiving high quality.
The combination of "listening" crackling technology
According to the current popular saying, DAB is audio transmission from analogue to digital age times migration of the product, it is also appear AM and FM after the advent of third generation broadcasting system. But more interesting is that rely on DAB, theoretically you can use eyes to "listen to" radio - as digital characteristics, DAB can transmit any text or even image signal. So you can keep DAB radio and television, in order to restore connects the video image digital signal. In this sense, the DAB has not a only the pure radio transmission audio signal system.
Even in the radio on quality, compared with simulation, DAB radio broadcast also has great advantage. DAB radio SNR at least in the 95db above, encoding rates was achieved 192Kbps above, it has already surpassed the quality standards. Most MP3 At the same time because have digital signal transmission anti-interference and resistance properties of airwaves attenuation, DAB radio is suitable in the fierce mobile environments, such as car use.
And when using experience, DAB radio and traditional AM/FM disparate also. DAB radio only requires users to remember quite limited number can be - each frequency band belongs to a particular comprehensive radio, and each station in this band and set within five or six channels. For a classical music lovers, listen to DAB radio typical steps are: transferred to radio (such as the BBC) in the "broadcast frequency", and then into its music son channel, finally again into the music channel, as classical as open menu.
In fact, DAB has become the UK and other western European countries digital audio broadcast standards. At present, the biggest impact a DAB standard is commonly known as "uefa rules" Eureka - 147, but its use is not just limited to Europe region. In addition, the United States IBOC (for any Band In - On - and the DRM (Digital France have formulated Mondiale) is a world important two DAB technical standards. But as the just founded in July last year, the signing drm-free standard Chinese become this league one of the 30 members. Through cooperation with the European Union, China has established a DAB laboratory in Beijing, and early start construction in guangdong and the forerunner DAB DAB radio network.
Products are increasing, the comprehensive revitalize the application
In fact, although the advent of DAB technology from now has almost 25 years, but it really into civil also just recently 10 years or even within five years, DAB radio what the cuts became 2003-2004 DAB radio in some countries the most important factor in the rapid popularization.
Can say, listen to DAB radio behavior has become a kind of fashion, and response is also more and more hardware manufacturers. CeBIT exhibition held in recent years, digital audio equipment manufacturing giant iRiver unveiling a model for iDA - 100 DAB radio. Although it supports MP3, etc pop audio file playback, but the battery life with a short seven hours, so iDA - 100 should indeed is a "play MP3, supplemented by the radio." In addition, and Creative eponymous card manufacturer TerraTec also has entered the DAB fields.
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