Audiogram equalizer using fast fourier transform
G K Girish, Sampatrao L. Pinjare · 2016
The audiogram is a graph, to indicate the hearing capability of a person. An audiogram presents the quietest sounds a person can just hear. The audiogram is used to describe the hearing capability of a person for the various frequencies tested. The hearing loss can be cured by Hearing aids. The very important part of the algorithm to be implemented is to identify the frequency of the audio signal for selective amplification. During the fitting process of a hearing aid, the audiogram of the person is considered as a prescription formula. There are different methodologies used by the researches across the globe to identify the frequency and classify the signals, the most used is the filter bank approach and multi rate filtering. The present work uses Fast Fourier Transform [FFT] to develop the algorithm. The entire system is developed in LabVIEW.