Design of Hearing Aid with Auto Tuning of Frequency on Comparison with IDFT Coefficients and Overlap Add Method

Abstract

AIM:The main objective is to develop hearing aids that tune the frequency using the autotuning approach using the inverse discrete fourier transform coefficients rather than the overlap add method. The primary goal of this research is to compare the IDFT algorithm and the overlap add (OA) method to autotune the frequency to the decibel range of the affected people. Materials and Methods: A total of 40 sample values are obtained from the dataset taken from the graph in the design of hearing aids to auto tune the frequency. The values in this dataset are divided into two groups: group 1 (n = 20) and group 2 (n = 20). This sample value is derived from the frequency graph generated as a result of auto-tuning the frequency using a dataset. Results: The frequency shaping of the transfer function by a non-redundant filter to autotune the frequency according to impaired people's needs was compared to the IDFT TRANSFORM and developed OA method. The significant level is p < 0.05. Conclusion: It was discovered in this work that the IDFT transform outperformed the overlap add approach from the dataset under consideration.