As 4K TV is popular around the world, the relevant TV audio system is also facing further upgrades. MPEG-H TV audio system (next-generation audio codec) Based on audio coding standardized organization MPEG-H 3D audio standard, it is possible to bring an immersive sound experience for the home end, enhance the real sense of TV program and immersion. Sense, and present individualized audio content to the audience through audio objects.
Recently, Audio and Media Technology Research Institutions Fraunhofer IIS joined at home and abroad to demonstrate the MPEG-H TV audio system end-to-end solutions at home and abroad.
MPEG-H TV audio system is included in many international standards
As a high-profile TV audio system in recent years, the MPEG-H television audio system mainly developed by Fraunhofer IIS has been included in ATSC, DVB and other international audio standards.
ATSC 3.0 Digital TV Official Audio Standard
In May 2017, MPEG-H was officially approved as an ATSC 3.0 digital TV official audio standard, and the MPEG-H TV audio system based on ATSC 3.0 standard has been adopted by South Korea, which has become an audio codec in its UHDTV service. The first case of the next generation of audio codec services worldwide.
According to Fraunhofer IIS Audio and Multimedia Technical Technical Technical Representative Toni Fiedler, Fraunhofer IIS and South Korea's cooperation is mainly divided into three aspects: 1) cooperate with local equipment manufacturers to help them produce, develop TVs, such as codec And TV program production equipment; 2) Cooperation with TV manufacturers, such as cooperation with Samsung, achieve corresponding configuration on Samsung's TV; 3) Cooperation with Radio and Television Institutions, including help training speaker engineers to make applications for next-generation audio information .
Incorporate DVB specification
At the same time, MPEG-H has also successfully integrated into the second phase of the DVB standard UHD-1. The first phase of DVB UHD started starting in 2014, which defined a higher resolution. That is to say (contrast HD resolution) DVB UHD uses a twice pixel row, from 1080 to 2160, and twice the pixel column, ie from 1920 to 3840 (4K resolution). A large number of work in the second phase of the standardization process is concentrated on the promotion of TV audio / video quality. In addition to MPEG-H technology, it also includes high dynamic fantang (HDR) techniques that bring better contrast and a more clear mobile object image, exceeding 50 or 60 Hz high frame rate (HFR) that is currently usually used. Technology.
The second phase of the UHD-1 is a milestone for digital TV DVB standards. Thanks to the intrinsic guarantee of interoperability, TV stations, consumer electronics manufacturers now have the opportunity to bring new services and equipment for users. In addition, applications that apply DVB systems will be implemented from digital TV systems to ultra HD television systems in the near future.
Help domestic system TV audio system upgrade
Since 2015, Fraunhofer IIS actively participated in the development of China's three-dimensional sound standards, in response to the demand for radio and television markets with Chinese characteristics, combined with its rich practical experience in international standards, and recommended next-generation radio and TV audio for the Chinese market. Solution: MPEG-H TV audio system. The program is currently selected by the AVS 3D Audio Working Group for one of my country's broadcast three-dimensional acoustic candidate solution.
Mr. Toni Fiedler said: "In order to enable China's consumers to experience the excellent audio experience from MPEG-H technology as soon as possible, the Fraunhofer IIS China team actively promotes the MPEG-H TV audio system and the integration of China's radio and television supporting equipment, participating in China. The three-dimensional standards of the market work and carry out close communication with TV stations across the country. We believe that once the standard is released, we can help TV stations to quickly produce the content of the next generation radio and television technology, and bring support with equipment manufacturers to support China 3D Voice technology consumer electronics and professional equipment. "
Application Products --uhd TV SOC and Audio Production Kit
MSTAR T12 Model UHD TV SOC has become the first TV platform that supports MPEG-H technology. Interested manufacturers can instantly enjoy the benefits of this technology, and T12 is a mainstream UHD SOC platform for MSTAR, which can support adoption ATSC 3.0 and DVB T2 / S2 standards for HEVC and HDR technology. This SOC is positioned in the medium and high-end TV products. With the integration of MPEG-H TV audio system decoders, the functionality of MSTAR T12 products will become more comprehensive and more competitive in the UHD market. At the same time, the MPEG-H audio system has been successfully incorporated into the Realtek RTD2871 UHD TV system solution. Realtek Announces Fraunhofer and will be equipped with the decoding function of the MPEG-H TV audio system in its latest and most advanced TV and set-top box solutions. The first Realtek RTD2871 UHD TV system solution will meet you later this year.
Merging Technologies launched an immersive audio production kit designed for radio and television, which contains Audio Definition Model (ADM) creation and MPEG-H output, and the latest version of Pyramix (11.1) has become the first basis. ADM and MPEG-H 3D Audio Generates a master file based on object-based metadata and a digital audio workstation (DAW) with a complete workflow. The IRCAM "AdmiX Render" developed in the Orpheus Project project successfully verifies the interoperability of the ADM output. Orpheus is a research project plan for the EU Funded Horizon 2020, and Fraunhofer IIS is also involved. Fraunhofer IIS verifies the export feasibility of MPEG-H metadata through its proprietary MPEG-H creation tool (for creating and listening to the independent application of MPEG-H content), and has verified the export feasibility of MPEG-H metadata and has been in Korea's 4K TV broadcast service. Commercial, it enables sound, object, and high-order Ambisonics to listen and render, and support import and export of MPEG-H metadata. Through Merging Technologies and Fraunhofer, you can directly export Pyramix 11 OBA project files to the MPEG-H workflow in the Fraunhofer MPEG-H creation tool has been introduced. Technology area
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