(1) After wearing a hearing aid, measure the hearing threshold of hearing aid. If the hearing compensation from 250-4000 Hz can enter the speech spectrum range (banana chart), and the speech resolution is ≥90%, the hearing aid effect is the most suitable hearing rehabilitation effect. , Belongs to the first level.
(2）戴助听器后测助听听阈如果从250—3000Hz的听力补偿能进入言语频谱范围内，而4000Hz的听力补偿未进入言语频谱范围内，言语分辨率）80%，助听效果为适合听觉康复的效果，属于二级。
(3）戴助听器后测助听听阈，如果从250～2000Hz的听力补偿能进入言语频谱范围内，而3000～4000Hz的听力补偿未进入言语频谱范围，言语分辨率≥70%，助听效果为较合适听觉康复的效果，属于三级。
(4) WearHearing aid 后测助听听阈，如果从250～1000Hz的听力补偿能进入言语频谱范围内，而2000～4000Hz的听力补偿未进入言语频谱范围，言语分辨率≥44%这种情况就需要借助“看话”来帮助学习和理解语言听觉康复的效果，属于四级。
