Physikalisch-Technische Bundesanstalt, Braunschweig, Germany.
Int J Audiol. 2020 Aug;59(8):624-630. doi: 10.1080/14992027.2020.1727034. Epub 2020 Feb 18.
Equivalent threshold sound pressure levels (ETSPLs) were determined for RadioEar DD65v2 audiometric headphones. The pure-tone hearing threshold levels were measured for 11 audiometric frequencies between 0.125 and 8 kHz, according to the conditions specified in ISO 389-9. ETSPLs are provided for an ear simulator according to IEC 60318-1, complemented by a comprehensive uncertainty budget. The study was based on 25 otologically normal test subjects. ETSPL values are provided with expanded measurement uncertainty. The data are compared for left/right ears as well as male/female test subjects. The results of both studies may be used to update ISO 389-8, the RETSPL standard for circumaural audiometric headphones.
为 RadioEar DD65v2 测听耳机确定了等效阈声压级 (ETSPL)。根据 ISO 389-9 规定的条件，在 0.125 至 8 kHz 之间的 11 个测听频率下测量了纯音听阈级。根据 IEC 60318-1 为耳模拟器提供了 ETSPL，并附有全面的不确定度预算。该研究基于 25 名耳科正常的测试对象。提供了具有扩展测量不确定度的 ETSPL 值。对左右耳以及男性/女性测试对象进行了数据比较。两项研究的结果均可用于更新 ISO 389-8，即对环耳式测听耳机的 RETSPL 标准。
