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ASTM International, 11/01/2011
Publisher: ASTM
File Format: PDF
$25.00$50.00
Published:01/11/2011
Pages:3
File Size:1 file , 72 KB
Note:This product is unavailable in Russia, Ukraine, Belarus
1.1 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 (see Test Methods E 1111 and E 1130).
1.2 The sound source shall be a loudspeaker located in an enclosure driven with an appropriate test signal.
1.3 This specification describes the sound source and method of qualifying it using a special qualification signal. Test signals required by open office test methods may differ.
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