Abstract:

A digital hearing aid is designed for patients with age-related hearing damage with both frequency and sound intensity level in mind in the voice signal loudness compensation.Based on the characteristics of the human auditory,a dynamic compressed loudness compensation strategy is proposed.The ear-sensitive low-frequency and high-frequency to speeches are simulated in Matlab.The results indicate that this compensation strategy guarantees the rationality and integrity of the loudness compensation effect of the digital hearing aids.

Key words: digital hearing aids;loudness compensation;dynamically compressed;voice frequency