Standard Classification for Determination of Articulation ClassTranslate name
STANDARD published on 1.4.2019
Designation standards: ASTM E1110-06(2019)
Publication date standards: 1.4.2019
The number of pages: 2
Approximate weight : 6 g (0.01 lbs)
Country: American technical standard
Category: Technical standards ASTM
architectural acoustics, articulation class, open office, open-plan space, sound attenuation, speech privacy,, ICS Number Code 17.140.01 (Acoustic measurements and noise abatement in general)
|Significance and Use|
4.1 Each weighting factor given in represents the fraction of overall speech intelligence contained within the associated one-third octave frequency band.
4.2 The weighting factors in are obtained by multiplying each individual one-third octave band weighting factor of ANSI S3.5-1969 by 300. Articulation class (AC) values are thus related to but distinctly different from articulation index (AI) values. In particular, the AC considers only the effect of signal attenuation; while the AI considers such additional factors as speech level and spectrum and background sound level and spectrum.
Note 2: The AC is similar to the DAI rating proposed by Warnock1.1 This classification provides a single figure rating that can be used for comparing building systems and subsystems for speech privacy purposes. The rating is designed to correlate with transmitted speech intelligence between office spaces.
1.2 Excluded from the scope of this classification are applications involving female speakers or children,Note 1: Published work by Pearsons, et al, may eventually permit the restriction on female speakers to be relaxed.1.3 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
|2. Referenced Documents|
Do you want to make sure you use only the valid technical standards?
We can offer you a solution which will provide you a monthly overview concerning the updating of standards which you use.
Would you like to know more? Look at this page.
Latest update: 2021-04-11 (Number of items: 2 440 786)
© Copyright 2021 NORMSERVIS s.r.o.