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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 ...
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
IEC 60574 Audio-visual, video and television equipment and systems (withdrawn) IEC TR 60575 Thermal-mechanical performance test and mechanical performance test on string insulator units; IEC 60580 Medical electrical equipment – Dose area product meters; IEC 60581 High fidelity audio equipment and systems: Minimum performance requirements
This is a list of published [Note 1] International Organization for Standardization (ISO) standards and other deliverables. [ Note 2 ] For a complete and up-to-date list of all the ISO standards, see the ISO catalogue.
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.
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 ...
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 ...
Linear pulse-code modulation (LPCM, generally only described as PCM) is the format for uncompressed audio in media files and it is also the standard for CD-DA; note that in computers, LPCM is usually stored in container formats such as WAV, AIFF, or AU, or as raw audio format, although not technically necessary.