本标准涵盖了听力阈值测量的要求、条件和程序 在声场中。然而，该标准也可用于进行其他声场听力测试 作为一种研究工具，评估听力条件和听者戴的头盔的影响 各种测试信号的可检测性。标准中引用了三个声场:自由声场 场、准自由声场和漫反射声场。本标准涵盖的测试信号 是调频音（颤音）和窄带噪声。然而，其他方面的问题仍然存在 也可使用符合本标准要求的信号。该标准适用于双耳 在测试室里，听一个或多个扬声器发出的测试信号。单耳空气传导 如果对侧耳朵能被正确地遮挡，也可以确定听力阈值。特殊的 本标准在空间听力评估中的应用见附录B。

The standard covers requirements, conditions, and procedures for threshold-of-hearing measurements in a sound field. However, the standard may also be used for conducting other sound-field hearing tests and as a research tool for assessing the effects of listening conditions and headgear worn by the listener on detectability of various test signals. Three sound fields are referenced in the standard: the free sound field, the quasi-free sound field, and the diffuse sound field. The test signals covered by the standard are frequency-modulated tones (warble tones) and narrow-band noises. However, other calibrated signals that meet requirements of this standard may also be used. The standard applies to binaural Iistening to test signals presented by one or more loudspeakers in a test room. Monaural air conduction hearing thresholds may also be determined if the opposite ear can be properly occluded. Special application of the standard to the assessment of spatial hearing is presented in Annex B.