Leijon A, Eriksson-Mangold M, Bech-Karlsen A
Scand Audiol. 1984;13(3):157-61. doi: 10.3109/01050398409043055.
The insertion gain versus frequency, preferred by a group of moderately hearing-impaired, elderly, untrained hearing aid users was investigated both in everyday listening situations and in an acoustically specified test situation in the laboratory. The subjects used experimental binaural hearing aids with modified controls, which could be easily and accurately operated. They adjusted both gain and bass-cut while using the aids. Preferred insertion gain was compared with recommendations from three methods of prescriptive fitting. These methods significantly overestimated preferred gain by about 10 dB. Preliminary fittings should allow a gain reserve of about 15 db. Intra-individually, a gain range of about 11 dB is often sufficient for different everyday situations.
对一组中度听力受损、年事已高且未经训练的助听器使用者在日常聆听环境和实验室声学特定测试环境下所偏好的插入增益与频率进行了研究。受试者使用带有改良控制装置的实验性双耳助听器，该装置易于准确操作。他们在使用助听器时调整增益和低频截止。将偏好的插入增益与三种处方拟合方法的建议进行了比较。这些方法显著高估了偏好增益约10分贝。初步拟合应留出约15分贝的增益储备。在个体内部，约11分贝的增益范围通常足以应对不同的日常情况。
