交响乐对演奏员听力的影响

SYMPHONIC MUSIC AND HEARING LOSS

本研究调查了某乐团交响乐队演奏时的音响特点。交响乐声级较高,40%以上的时间等效声级达90dB(A)以上,其频谱特点属宽频带声音。对78例演奏员的听力测定结果表明,经常接触这种高强度的音乐,可以对人的听力产生影响,在三个不同的工龄组(≤15年、16—30年、>30年)中,高频听力损伤的耳数分别占25%、37%、56.1%,语频听力损伤的耳数为0、3.7%、9.1%。

Sound level and its frequency spectrum were determined while the symphony orchestra of a philharmonic orchestra gave instrumental performance. The sound was broad-band, unsteady state and over 40% performing time the equivalent sound level (Leq) was more than 90 dB (A) . Audibility of 78 performers (156 ears) were tested. The percentages of hearing impairment at high frequencies were 25%, 37%, 56.1% respectively in different groups (working period: ≤15 years, 16-30 years, >30 years) . The percentages of hearing impairment at speech frequencies were 0, 3.7%, 9.1% respectively. The results indicated that even if people exposed to music hearing loss also would occure if the intensity of music sound was high enough and the exposure time was too long.