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Archbold, S., Ng, Z.Y., Harrigan, S., Gregory, S., Wakefield, T., Holland, L. and Mulla, I. (2015) Experiences of Young People with Mild to Moderate Hearing Loss: Views of Parents and Teachers. The Ear Foundation Report to NDCS: Mild-Moderate Hearing Loss in Children, 1-12, May 2015.

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• TITLE: Analysis of Deaf Speakers’ Speech Signal for Understanding the Acoustic Characteristics by Territory Specific Utterances

  AUTHORS: Nirmaladevi Jaganathan, Bommannaraja Kanagaraj

  KEYWORDS: Deaf Speaker, Hard of Hearing, Deaf Speech Processing, Assistive Mechanism for Deaf Speaker, Speech Correction, Speech Signal Processing

  JOURNAL NAME: Circuits and Systems, Vol.7 No.8, June 17, 2016

  ABSTRACT: An important concern with the deaf community is inability to hear partially or totally. This may affect the development of language during childhood, which limits their habitual existence. Consequently to facilitate such deaf speakers through certain assistive mechanism, an effort has been taken to understand the acoustic characteristics of deaf speakers by evaluating the territory specific utterances. Speech signals are acquired from 32 normal and 32 deaf speakers by uttering tenIndian native Tamil language words. The speech parameters like pitch, formants, signal-to-noiseratio, energy, intensity, jitter and shimmer are analyzed. From the results, it has been observedthat the acoustic characteristics of deaf speakers differ significantly and their quantitative measure dominates the normal speakers for the words considered. The study also reveals that theinformative part of speech in a normal and deaf speakers may be identified using the acousticfeatures. In addition, these attributes may be used for differential corrections of deaf speaker’sspeech signal and facilitate listeners to understand the conveyed information.