【摘要】 为探讨闪声融合频率与听觉疲劳的关系，测量了８０名接触噪声工人和６０名非接触噪声人员的脉冲声和双音调闪声融合频率。采用自制的闪声融合频率测试软件，在微机上引出刺激声信号。比较正常人群组融合频率与年龄的关系，以及噪声作业人群接触噪声前后的闪声融合频率。结果表明，正常人群组闪声融合频率与性别和耳别无关，５０～５９岁年龄组与４９岁以下各年龄组的闪声融合频率相比，差异有显著性，闪声刺激声在其载波或中心频率为１０００Ｈｚ时较为敏感，双音调闪烁音程在约１／４０倍频程时，对受试者筛选价值较高。接触噪声人群的闪声融合频率与听觉疲劳的重要指标暂时性听阈阈移有着明显的一致性。闪声融合频率测试具有较高的稳定性、重复性和较小的离散度，其所需声学条件较为简单，是一种有实用意义的阈上听力测试方法。更多还原

【Abstract】 Auditory fusion frequency (AFF) of impulse sound and paired pitch in 80 workers exposed to noise and 60 non exposed ones were measured to study the relationship between AFF and auditory fatigue. AFF test software was made by the authors themselves, and a stimulating sound signal was evoked in a personal computer. Relationship between AFF in non exposed workers and their ages was explored, and AFF in exposed ones before and after their exposure was compared. Results showed that no relationship between AFF and their sex and ears in non exposed group was found. There was a significant difference in AFF between groups of 50 59 year and less than or equal to 49 year. Stimulating sound was more sensitive in its carrier wave or center frequency of 1 000 Hz, and paired pitch has higher value in screening for subjects with auditory threshold shift at about 1/40 octave band. There was significant consistency in transient auditory threshold shift, an important indicator of AFF and auditory fatigue. Measurement of AFF is more stable, repeatable and less deviated, and needs only simple acoustic conditions. Hence, it is a practical superthreshold audiometry.更多还原