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BS 8647 Respiratory equipment - Full-face snorkel masks - Specification; BS 8888 for engineering drawing and technical product specification; BS 8900-1 Managing sustainable development of organizations. BS 8900-2 Managing sustainable development of organizations. Framework for assessment against BS 8900-1; BS 9997 Fire risk management systems.
Perceptual Evaluation of Audio Quality (PEAQ) is a standardized algorithm for objectively measuring perceived audio quality, developed in 1994–1998 by a joint venture of experts within Task Group 6Q of the International Telecommunication Union's Radiocommunication Sector . It was originally released as ITU-R Recommendation BS.1387 in 1998 and ...
A Publicly Available Specification or PAS is a standardization document that closely resembles a formal standard in structure and format but which has a different development model. [1] The objective of a Publicly Available Specification is to speed up standardization. PASs are often produced in response to an urgent market need. [2]
BSI Group headquarters building in Gunnersbury, West London, featuring the BSI Group logo. BSI was founded as the Engineering Standards Committee in London in 1901. [5] [2] It subsequently extended its standardization work and became the British Engineering Standards Association in 1918, adopting the name British Standards Institution in 1931 after receiving a Royal Charter in 1929. [2]
ITU-R 468 (originally defined in CCIR recommendation 468-4, therefore formerly also known as CCIR weighting; sometimes referred to as CCIR-1k) is a standard relating to noise measurement, widely used when measuring noise in audio systems. The standard, [1] now referred to as ITU-R BS.468-4, defines a weighting filter curve, together with a ...
British Standards (BS) are the standards produced by the BSI Group which is incorporated under a royal charter and which is formally designated as the national standards body (NSB) for the UK. [1] The BSI Group produces British Standards under the authority of the charter, which lays down as one of the BSI's objectives to: [ 2 ]
Loudness Units referenced to full scale Loudness measurement unit on an absolute scale, K-weighted, [3] relative to a digital scale (the upper limit of which is 0 dBFS). Equivalent with LKFS, used in ITU-R BS.1770. LU Loudness Unit Relative loudness measurement. 1 LU corresponds to the relative measurement of 1 dB on a digital scale. LU can ...
MUSHRA stands for Multiple Stimuli with Hidden Reference and Anchor and is a methodology for conducting a codec listening test to evaluate the perceived quality of the output from lossy audio compression algorithms. It is defined by ITU-R recommendation BS.1534-3. [1] The MUSHRA methodology is recommended for assessing "intermediate audio quality".