ANSI/ASA S3.7-1995 (R2008)

ANSI/ASA S3.7-1995 (R2008)

American National Standard Method for Coupler Calibration of Earphones American National Standards of the Acoustical Society of America / 28-Oct-2008 / 43 pages

More details

Download

PDF AVAILABLE FORMATS IMMEDIATE DOWNLOAD
$64.50 tax incl.

$150.00 tax incl.

(price reduced by 57 %)

999 items in stock

The physical configuration and acoustical performance of couplers for calibration of supra-aural and insert earphones are specified. The standard which is a revision of S3.7-1973, describes a family of 6.0 cm^3 and 2.0 cm^3 couplers, and provides information on the methods for coupler calibration of the respective supra-aural and insert earphones. The family of 6.0 cm^3 couplers includes the NBS 9-A Coupler for testing supra-aural earphones (ANSI S3.6-1989), the Type-1 Earphone coupler for testing supra-aural earphones without cushions, and the IEC Coupler for supra-aural earphones. The family of 2.0 cm^3 earphone couplers includes the HA-1 Coupler for earphones mounted in an ear insert or an ear insert connected to an earphone, the HA-2 Coupler for tests in which an acoustic tube connects an earphone to an ear mold or ear insert, the HA-3 Coupler for testing the modular portion of a hearing aid, and an HA-4 Coupler for testing post auricular hearing aids or eyeglass hearing aids assumed to have a uniform 1.93 cm diameter sound path.




People Who Bought This Also Bought:
IEC 60318-3 Ed. 1.0 b:1998- Electroacoustics - Simulators of human head and ear - Part 3: Acoustic coupler for the calibration of supra-aural earphones used in audiometry
View Contents (PDF)

Contact us