Some people often ask that needed in the production and design of the MP3 decoder chip decoder chip? In fact, the decoder chip is done from a compressed file recovery to the performance of the audio format, compression (encoding) or anti-process. For good decoding chip (or the computer on the player) to be better able to restore its pre-compression audio information, can largely compensate for the loss of the audio signals in the compression process. Why today to talk about the decoder chip, because people often take the decoder chip over whether this chip decryption, in fact, we see that the decoder chip, there is no program, more common for MP3, MP4 decoder chip, including the DVB and DVD, audio and video equipment above, because the decoder chip is divided into audio decoder chip video decoder chip. Audio decoder chip is not to say, including MP3, MP4, etc. just said, the U.S. the SIGMATEL company's STMP 34 series and 35 series are the largest market share of MP3 decoder chip one, it is some of the most mainstream highly integrated single-chip decoder chip only. Therefore the the SIGMATEL program outer structure of the machine as a whole is relatively simple, easy to control costs, comprehensive cost should be considered the highest. Which the SIGMATEL 34 series once because the structure is simple, cost-effective, mature program is used by almost all mainstream manufacturers, and therefore to develop a wide range of additional features, accounted for most of the rivers and mountains of the MP3 market, Patriot Moonlight, Samsung 55H market selling models are based on the classic decoder chip. With the development of China's electronics, audio decoder chip also has a number of domestic manufacturers. Second class of common decoder chip is video decoding chip, video chip actually use very widely, especially with the development of security programs for PMP, as Analog Devices, Inc. (Analog Devices Inc.), Mainly Blackfin the processor family BF561/533/531 three, respectively corresponding to the high, medium and low categories. The unique dual-core technology uses low-power 32-bit RISC design the core A handling driver, audio, text and pictures display, Core B is dynamic video codec, the energy consumption is very low, at the same time compatible with the 8, 16 even 32 games, the achievements of the the strongest gaming performance similar chips. Described above we can see that the decoder chip is no program, only an auxiliary part, but it is still very important to a chip.
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