标准摘要
[中文适用范围]： 本部分ISO 8253规定了相关测试信号特性、自由声场、扩散声场和准自由声场的要求，以及使用纯音、调频音或其他窄带测试信号通过一个或多个扬声器进行声场测听的过程。其主要目的是确定125 Hz至8 000 Hz频率范围内的听力阈值，但此范围可扩展至20 Hz至16 000 Hz。本部分ISO 8253不包括对手持扬声器的使用规范，也不涵盖以语音作为测试信号的情况。本部分ISO 8253的目的是确保使用声场测听进行的听力测试尽可能获得高程度的准确性和可重复性。附录A给出了结果图形表示的示例。 [外文原描述]： ISO 8253-2:2009 specifies relevant test signal characteristics, requirements for free, diffuse, and quasi‑free sound fields, and procedures for sound field audiometry using pure tones, frequency-modulated tones or other narrow-band test signals presented by means of one or more loudspeakers. The primary purpose is the determination of hearing threshold levels in the frequency range 125 Hz to 8 000 Hz, but this range can be extended to 20 Hz to 16 000 Hz. ISO 8253-2:2009 does not include specifications for the use of hand-held loudspeakers. Speech as a test signal is not covered. The purpose of ISO 8253-2:2009 is to ensure that tests of hearing, using sound field audiometry, give as high a degree of accuracy and reproducibility as possible. Examples of graphical representations of the results are given.
英文名称Acoustics — Audiometric test methods — Part 2: Sound field audiometry with pure-tone and narrow-band test signals