Report producer: China Electronic Audio Industry Association
1) Wireless interconnection is an important development trend in all scenarios of smart terminals. Audio is not only an important part of the traditional video experience, but also widely used in music, games, audiobooks, radio and other scenarios, which is more prominent in the field of mobile terminals and vehicles.
2) In recent years, the trend of audio wireless has become increasingly obvious, taking headphones and speaker products as an example, wireless products have exceeded 60% of the sales volume, and they are continuing to grow. From the perspective of product categories, the key link of cross-device connection between wireless audio source and host is not only the TOP1 feature of audio products involving nearly 400 billion output value of the cebu end, but also the key technical point of intelligent terminal products (billions of units, trillions of output value) such as source machines, large screens, car machines, tablets, PCs, and smart watches.
—Standard Introduction—
In 2022, with the unprecedented boom in the wireless audio market, people have put forward higher requirements for their use experience. On July 13, China Electronic Audio Industry Association, China Electronics Standardization Institute, Huawei, Sennheiser, Goertek and other more than 30 companies at home and abroad officially released the HWA standard, which stipulates the technical requirements and measurement methods of high-definition wireless audio products, mainly from the high-definition wireless audio codec, wireless transmission, anti-interference ability, scene adaptation, noise reduction, battery life and other dimensions to standardize high-definition wireless audio technology, focusing on multiple dimensions to bring consumers a more satisfactory high-definition wireless audio experience.
The HWA standard is a comprehensive standard based on the actual experience of consumers, covering subjective and objective evaluation, based on the end-to-end standard architecture, and is suitable for the source (SRC) and SNK products connected through wireless communication technology that can support high-definition wireless audio playback, of which the source (SRC) can include mobile phones, tablets, personal computers, wireless music players, smart TVs, smart watches and other products with audio source decoding and wireless audio transmission capabilities. Wireless audio, wireless audio amplifier and other products with wireless audio reception and playback capabilities.
—Overall Situation—
China Electronics Standardization Institute Saixi Laboratory has a top electroacoustic test platform and full anechoic chamber, which can test TVs, speakers, speakers (active, passive), microphones, audio amplifiers, headphones, information technology equipment and communication equipment noise, etc. In addition, it also has an authoritative three-dimensional speaker test system in the industry, and the test data can be used for sound simulation selection.
According to the requirements of network transmission simulation test, a radio frequency interference simulation test environment is established to cover all the test requirements of the HWA standard. He has taken the lead in building a test signal library, which has recently been opened to members on the official website of the HWA Alliance, and has recently launched open test and verification for HWA standard development units, helping to build an open industry ecosystem through the opening and empowerment of wireless testing capabilities.
—Development Proposals—
The standardization work in the field of high-definition wireless audio can strengthen the industry consensus, accelerate the iterative upgrading of the high-definition wireless audio industry, reduce the development cost of developers, and further lay a solid foundation for the healthy and high-quality development of the wireless audio industry.
With the continuous development of the industry and the growth of scale, effectively improving the product quality level and monitoring the product quality of related products will help improve the performance and user experience of products.
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The report is 44 pages long
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