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The AVS workgroup was founded in June 2002 to cooperate with Chinese enterprises and scientific research institutions, to formulate and revise common technical standards such as digital audio and digital video's compression, decompression, processing and representation, thus to provide efficient and economic coding/decoding technologies for digital audio and digital video devices and systems ...
Several generic digital data connection standards are designed to carry audio/video data along with other data and power: USB was designed as a single connector to support all needs, including any generic data, audio/video, power, and more; DisplayLink is its most successful Audio+Video protocol. Until the 3.0 revision, very low data rates ...
The core standards of ISDB are ISDB-S (satellite television), ISDB-T (terrestrial), ISDB-C (cable) and 2.6 GHz band mobile broadcasting which are all based on MPEG-2, MPEG-4, or HEVC standard for multiplexing with transport stream structure and video and audio coding (MPEG-2, H.264, or HEVC) and are capable of UHD, high-definition television ...
ISO/IEC 29341-4-3:2008 Part 4-3: Audio Video Device Control Protocol - Level 2 - Media Server Device; ISO/IEC 29341-4-4:2011 Part 4-4: Audio Video Device Control Protocol - Level 2 - Audio Video Data Structures; ISO/IEC 29341-4-10:2011 Part 4-10: Audio Video Device Control Protocol - Level 2 - Audio Video Transport Service
Once the digital video and audio signals have been compressed and multiplexed, the transport stream can be modulated in different ways depending on the method of transmission. Terrestrial (local) broadcasters use 8VSB modulation that can transfer at a maximum rate of 19.39 Mbit/s, sufficient to carry several video and audio programs and metadata.
EN 60065: Audio, Video and similar electronics apparatus - Safety requirements. EN 60077: Railway applications - Electric equipment for rolling stock; EN 60950-1: Information technology equipment - Safety - Part1: General requirements; EN 60950-21: Information technology equipment - Safety - Part21: Remote power feeding
The various serial digital interface standards all use (one or more) coaxial cables with BNC connectors, with a nominal impedance of 75 ohms. This is the same type of cable used in analog composite video setups, which potentially makes for easier "drop in" equipment upgrades (though may be necessary for long runs at the higher bitrates for older oxidising or lower grade of cable to replaced ...
The professional audio visual industry has companies that provide hardware, software and services. These organizations are commonly referred to as systems integrators and perform both the installation and integration of different types of AV equipment from multiple manufacturers into spaces to create the AV experience for the user or audience.