声导抗基础知识培训 Tympanometry and Acoustic Reflex Measurements 鼓室声导抗和声反射测试 +Infant test recommendations 婴儿测试的推荐方法Sound travel 声音传导Getting sound into a different medium 声音在不同媒介中的传导 Most of the sound energy is reflected when confronting a another medium. 大部分声能在临界面处被反射回来 because different media are more or less easy to bring into motion (impedance) 因为不同媒介的声阻抗是不同的The role of the middle ear 中耳的作用The Ossicles 听小骨 Malleus 锤骨 Incus 砧骨 Stapes 镫骨 Three small bones forming a chain between the tympanic membrane an
