What is frequency theory?
The theory of frequency tries to explain how the brain experiences sound waves. While frequency theory is primarily a physiological theory that seeks to explain how the anatomical structure of the ear is responsible for hearing, it is also a psychological theory that examines how sound means.
Before the frequency theory can be fully understood, a brief description of the physiological structure of the ear is necessary. The sound is picked up by an outer ear that consists of a dirt and external auditory channel. At this stage, the sound is an acoustic signal. The external and middle ear departments are a tympanic membrane or ear drum. When the acoustic signal enters the middle ear, the acoustic signal becomes mechanical due to the rocking movement of an aspective string that transmits the signal and increases the signal of about 22 decibels (DB) into the inner ear, where the sound enters the cavity filled with liquid called cochle.
Cochlea sits in the inner ear and consists of three chambers filled with liquid: scala tympani, scala vesibule and scala media. Scala media contains the Corti body, known as the auditory organ. The corti organ is located hair cells that are excited when the signal enters Kochle, which is now a hydraulic signal, and pushes the liquid. When the liquid is moved, it excites hair cells, which in turn causes them to convert the hydraulic signal to a mechanical signal. This causes the auditory nerve to fire and sends an electrical signal to the hearing system of the brain that experiences the brain as a sound.
Frequency Theory states that the pitch is coded by the discharge frequency in the primary auditory fiber. The basillary membrane moves up and down due to the perilym and endolympic fluid in the cochle caused by each individual sinus wave. Each nerve correlates with a specific frequency. As soon as this specific wave enters Kochle, its frequency and intensity is sensitive to a specific nerve and causes the nerve to fire. The nerve cannotEslat another message until the message is sent and the nerve is not registered. Every nerve fiber in the auditory nerve sends information to the auditory bark, where it assembles information and assembles it together to perceive and interpret the auditory signal.
Frequency theory, more simplified, explains how the human brain basically experiences a representation system of hearing. The frequency theory essentially claims that human beings do not actually experience sound waves, but rather vibrations on the auditory nerve, whose frequencies are identical to the frequencies of sound waves coming into the ear.