TITLE:
Design of Optimized Wavelet Packet Algorithm to Improve Perception of Sensorineural Hearing Impaired
AUTHORS:
Jayant J. Chopade, Niteenkumar P. Futane
KEYWORDS:
Sensorineural, Dichotic, Binaural, Masking, Wavelet Transform
JOURNAL NAME:
Journal of Signal and Information Processing,
Vol.7 No.1,
February
19,
2016
ABSTRACT: A novel optimized wavelet packet algorithm
is proposed to improve the perception of sensorineural hearing-impaired people.
In this work, we have developed optimized wavelet packet along with,
biorthogonal wavelet basis functions using MATLAB Code. Here, we have created
eight bands based on auditory filters of quasi octave bandwidth. Evaluation was
carried out by conducting listening tests on seven subjects with bilateral mild
to severe sensorineural hearing loss. The speech material used for the
listening test consisted of a set of fifteen nonsense syllables in VCV context.
The test results show that the proposed algorithm improves the recognition
score, speech quality and transmission of overall feature specifically over the
unprocessed signal. The response time also reduces significantly.