Ylikoski J, Pekkarinen J, Starck J
Scand Audiol. 1987;16(2):85-8. doi: 10.3109/01050398709042160.
Young men conscripted into the armed forces still run a risk of suffering hearing damage during their military service. This risk could be reduced by effective personal hearing protectors. The standard tests to determine the attenuation values of hearing protectors cannot be applied to high-intensity impulse noise from firearms, but the protectors should be evaluated under actual firing conditions. The attenuation values of the hearing protectors (earmuffs) most commonly used in the Finnish Army were tested for impulse noise from different weapons. The attenuation was found to be good for pistol shots, moderate for rifle shots and very poor for cannonfire. The tested earmuffs gave only minimal protection against low-frequency impulse energy.
应征入伍的年轻男子在服兵役期间仍有听力受损的风险。有效的个人听力保护器可以降低这种风险。用于确定听力保护器衰减值的标准测试不能应用于枪支产生的高强度脉冲噪声，但应在实际射击条件下对保护器进行评估。对芬兰军队最常用的听力保护器（耳罩）针对不同武器产生的脉冲噪声的衰减值进行了测试。结果发现，其对手枪射击的衰减效果良好，对步枪射击的衰减效果中等，对火炮射击的衰减效果非常差。测试的耳罩对低频脉冲能量的防护作用微乎其微。
