Abstract
This paper presents a pathological voice identification system employing signal processing techniques through cochlear implant models. The fundamentals of the biological process for speech perception are investigated to develop this technique. Two cochlear implant models are considered in this work: one uses a conventional bank of bandpass filters, and the other one uses a bank of optimized gammatone filters. The critical center frequencies of those filters are selected to mimic the human cochlear vibration patterns caused by audio signals. The proposed system processes the speech samples and applies a CNN for final pathological voice identification. The results show that the two proposed models adopting bandpass and gammatone filterbanks can discriminate the pathological voices from healthy ones, resulting in F1 scores of 77.6% and 78.7%, respectively, with speech samples. The obtained results of this work are also compared with those of other related published works.
Highlights
Humans use speech to convey information in their daily life
One model uses a bank of bandpass filters, and the other uses gammatone filters
It has been shown that the gammatone filter is more suitable for voice pathology identification through the signal processing steps involved in the cochlear implants
Summary
Humans use speech to convey information in their daily life. A human speaker encodes information into a continuously time-varying waveform that can be stored, manipulated, and transmitted during speech production. The whole human communication process can be broadly divided into four main parts: speech production, auditory feedback, sound wave transmission, and speech perception [1]. The human voice generation system consists of the lungs, larynx, and vocal tracts. The speech production process originates from the lungs. During the speech production process, humans inhale air and expel it. The most critical components of the human voice generation system are the vocal folds. The larynx controls the vocal folds by using its ligaments, cartilages, and muscles. The primary function of articulators is to filter the sound emanating from the larynx to produce a highly intricate sound
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
