ASTM E1179-13(2019)

Standard Specification for Sound Sources Used for Testing Open Office Components and Systems

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STANDARD published on 1.4.2019

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The information about the standard:

Designation standards: ASTM E1179-13(2019)
Publication date standards: 1.4.2019
SKU: NS-948642
The number of pages: 3
Approximate weight : 9 g (0.02 lbs)
Country: American technical standard
Category: Technical standards ASTM

The category - similar standards:

Acoustic measurements and noise abatement in general

Annotation of standard text ASTM E1179-13(2019) :

This specification states the requirements for sound sources used for measuring the speech privacy between open offices or for measuring the laboratory performance of acoustical components. The sound source shall be a loudspeaker enclosed in a box that has a maximum dimension of 0.30 m (1 ft) on a side, to reduce spurious sound reflections. The measurements shall be carried out in a free sound field. The measurement microphone, amplifier, and level meter used to measure sound pressure levels shall satisfy the requirements prescribed. When the sound source is driven with the qualification signal, the sound output shall be adequate to maintain one-third octave-band sound pressure levels at least 10 dB above the corresponding background noise in each band at each measurement location. The directivity of the sound source shall be verified by driving the source with the qualification signal and measuring the sound pressure levels at measurement points.

loudspeaker, open office, open office components, open office components and systems, sound, sound source directivity, sound sources,, ICS Number Code 17.140.01 (Acoustic measurements and noise abatement in general)

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