【 Weak current college 】 introduced Chinese digital audio Dolby DTS row labels on every new opponents---Power By 【 China power house network 】

Further to the AVS, IGRS, WAPI and China's electronics industry's "independent standard hot" continues.

20 January, from Guangzhou rising digital autonomy launches DRA digital audio encoding and decoding technology, officially issued by the Ministry of information industry as the industry standard – multichannel digital audio coding standard ".

Independent research and development of rising digital DRA, sounds rather obscure. In fact, its domestic audio codec, a considerable popularity. Prior to becoming the industry standard, rising digital waited nearly two years. Early in January 2005, it will provide the State and the Ministry of information presented.

Follow the rising digital press spokesman Wang Xian-man's introduction, DRA technology has now applied for 2 international patents and the 12 national invention patent.

It is learnt that the DRA standards for digital audio coding scheme of the signal path can keep more than 24 bit precision (in addition to quantify the accuracy of which intends to discard). You can support channel is set apart from the common stereo, 5.1 surround sound, 6.1 surround sound and 7.1 surround sound, but also for the future of audio technology development to the provision of space (supports 64.3 surround sound), which is leading in the industry.

"Our main competitor is Dolby and DTS. " Wang Xian-man said, despite the DRA and became in March last year, the national standard of AVS are mainly applied to audio like MP3, so that the end product, however, and AVS on video codec, DRA has focused on audio. These areas were subject to United States Dolby, DTS, and so a high European patent fees (per year to 80-100 billion), moving towards the destitution.

"Rising digital is also one of our members. " AVS working group Secretary-yellow tie, AVS has more than 150 member companies, including video, audio, and copyright protection and other areas, the narrower the scope of application, the DRA does not compete with the AVS result.

He also said that "video codec are require chip hardware support, Terminal products use to increase the hardware costs, audio coding standard is relatively simple, only need software support can, in this case, refer to Dolby international giants of operation, use the AVS products does not preclude the possibility of also compatible with the possibility of DRA technology. ”

In rising digital, 2007-2010 is the DRA key time of industrialization, in becoming the industry standard, the industry will be started.

And AVS "each one Yuan", the DRA's patent fees will also be symbolic, but its industrialization is clearly more difficult. This reporter has learned that, at present only the Dalian hualu, Guangzhou a karaoke project, individual enterprises of individual products in use DRA technology.

However, DRA, after all, a domestic audio industry from Dolby and DTS's patented binding provides a road.

This reporter has learned that, last year, DRA has entered the national radio and television technology DBS project testing, after CCTV and television broadcasting Planning Institute for testing, rising digital last September has become CMMB mobile multimedia TV standards working group members.

Ministry of information industry, science and Technology Division of the relevant person, Guangdong huge audio/video industry Foundation and the market demand is supporting technology standard industry best carrier to the pilot in Guangdong Province, Guangdong Province, the "digital family action plan" promoting the DRA audio standard industry, the AVS Video and audio standards of DRA industrialization and applications combine the overall effort, formed a chip design, complete machine production, application and development of full digital audio and video industry chain and the application surface.