What Is Frequency Theory?
Frequency theory was proposed by physicist Roy Field in 1886. The theory is that the basement membrane of the inner ear moves at the same frequency as the sacrum. The amount of vibration matches the original frequency of the sound. If we hear a low-frequency sound, the zygomatic bone of the connected oval window will vibrate less each time, so the basement membrane will vibrate less. The frequency of sound vibration will increase, and both the zygomatic bone and the basement membrane will Faster vibration occurs. Since the human ear basement membrane cannot make rapid vibrations above 1000 Hz, but can accept sounds above 1000 Hz, it is difficult for this theory to explain the analysis of the sound frequency of the human ear.