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ISO 8253-3:1996 Acoustics - Audiometric test methods - Part 3: Speech audiometry
standard by International Organization for Standardization, 12/01/1996
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Procedures and requirements for speech audiometry with the recorded test material being presented by air conduction through an earphone, by bone conduction through a bone vibrator or from a loudspeaker for sound field audiometry. It also contains requirements on recorded speech material and recommended procedures for the maintenance and calibration of speech audiometric equipment.