Frequency and intensity are two of the important parameters of sounds. Many researchers use spike rate of auditory neurons to represent the two parameters generally.

We will discuss how acoustic signals are coded by auditory neurons, the impact of these codes on behavioral performance, and the circuitry and cellular mechanisms underlying signal transformations.

Nevertheless, the tinnitus may not disappear even the labyrinthine is totally removed because the spontaneous spark of the neurons in the central auditory system after the operation.