University of Education, Winneba Acoustic
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University of Education,Winneba http://ir.uew.edu.gh UNIVERSITY OF EDUCATION, WINNEBA ACOUSTIC CHARACTERISTICS OF FRICATIVES IN ASANTE, BONO AND DENKYIRA DIALECTS OF AKAN AKUAMAH ABDULAI 2015 i University of Education,Winneba http://ir.uew.edu.gh UNIVERSITY OF EDUCATION, WINNEBA ACOUSTIC CHARACTERISTICS OF FRICATIVES IN ASANTE, BONO AND DENKYIRA DIALECTS OF AKAN AKUAMAH ABDULAI (8120080006) A THESIS IN THE DEPARTMENT OF APPLIED LINGUISTICS, FACULTY OF FOREIGN LANGUAGES EDUCATION AND COMMUNICATION SUBMITTED TO THE SCHOOL OF GRADUATE STUDIES, UNIVERSITY OF EDUCATION, WINNEBA IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE AWARD OF THE MASTER OF PHILOSOPHY (APPLIED LINGUISTICS) DEGREE. DECEMBER, 2015 ii University of Education,Winneba http://ir.uew.edu.gh DECLARATION STUDENT‟S DECLARATION I, AKUMAH ABDULAI declare that this thesis, with the exception of quotations and references contained in published works which have all been identified and duly acknowledged, is entirely my own original work, and it has not been submitted, either in part or whole, for another degree elsewhere. SIGNATURE: ………………………… DATE: ………………………… SUPERVISOR‟S DECLARATION I hereby declare that the preparation of this work was supervised in accordance with the guidelines for supervision of thesis laid down by the University of Education, Winneba. NAME OF SUPERVISOR: ……………………………………………………………….. SIGNATURE: ………………………………………. DATE: ………………………………………………. ii University of Education,Winneba http://ir.uew.edu.gh ACKNOWLEDGEMENT “A diligent and grateful heart prompts me to sing thy praise. Thy love and mercies from the start have blessed me all my days” (The SDA Hymnal 639). On this note I ascribe all my gratitude and appreciations to the Lord Almighty for making this dream a reality. No amount of adjectives can perfectly describe how grateful I am to the Creator for how far He has brought me. The maxim that no one ever writes a script all by himself is true. I am highly indebted to my supervisor Dr. Rebbeca Atchoi Akpanglo-Nartey who patiently took her time scrutinized this work and made many critical, evaluation, suggestions and comments to bring this work to reality. Madam, I thank you for the interest you took in this work by constantly making sure the work was on-going. The role of the late Prof. Jonas Akpanglo-Nartey cannot be forgotten. His initial comments and suggestions went a long way to shape this work and my attitude towards experimental phonetics. I also thank all the lectures and the workers in the Applied Linguistics Department who contributed in diverse ways to this work especially, Dr. Kwaku Ofori Head of Department and Sister Helen. I am also grateful to Brother Isaac for his technical support. I am grateful to my friends Pastor Ansong Kwadwo, David, Deborah Anane- Karikari, Ama Benewaa Yelebie, Alexander Baah and Dorothy not forgetting my colleagues Roberta, Celestine, Collins, Peter, Daniel, Hope, Leticia and Louis for their encouragement. Above all, I am indebted to my parents Mr/Mrs Akuamah and all my siblings for their support. I say God bless you all. iii University of Education,Winneba http://ir.uew.edu.gh DEDICATION I dedicate this Thesis to my parents: Mr. George Nyantakyi Akuamah (father) and Mrs. Margaret Adu Akuamah (mother). iv University of Education,Winneba http://ir.uew.edu.gh TABLE OF CONTENT DECLARETION ii ACKNOWLEDGEMENT iii DEDICATION iv TABLE OF CONTENT v LIST OF TABLES x LIST OF FIGURES xiii ABSTRACT xvi CHAPTER ONE INTRODUCTION 1.0 Introduction 1 1.1 Background to the Study 1 1.2 The Akan Language 4 1.3 Statement of the Problem 5 1.4 Purpose of the Study 6 1.5 Research Questions 6 1.6 Limitation 6 1.7 Delimitation 6 1.8 Significance of the Study 7 1.9 Organization of the Study 8 1.10 Conclusion 8 CHAPTER TWO LITERATURE REVIEW 2.0 Introduction 9 2.1 Theoretical Framework 9 v University of Education,Winneba http://ir.uew.edu.gh 2.2 Effects of the Filter in the Production of Sound 12 2.3 Acoustic Cues to Fricative Place of Articulation 13 2.3.1 Spectral Peak Location 13 2.3.2 Duration 17 2.3.3 F2 Vowel Transition Cue 22 2.3.4. Summary 25 2.4 Gender and Speech Production 26 2.5 Conclusion 28 CHAPTER THREE METHODOLOGY 3.0 Introduction 29 3.1 Participants 29 3.2 Research Design 30 3.3 Data Design 30 3.4 Data Collection 31 3.5 Acoustic Analysis 33 3.5.1 Spectral Peak Location 34 3.5.2. Duration 36 3.5.3 F2 Transition 38 3.6 Statistical Analysis 39 3.7 Conclusion 39 CHAPTER FOUR RESULTS AND DISCUSSION 4.0 Introduction 40 4.1 Asante Twi 40 vi University of Education,Winneba http://ir.uew.edu.gh 4.1.1 Asante Spectral Peak Location Mean Values 40 4.1.2 Gender Characteristics of Asante Fricatives Using Spectral Peak Location 42 4.1.3 Asante Fricatives at Different Place of Articulation using Spectral Peak Location 44 4.1.4 Fricative Duration Mean Values of Asante Dialect 45 4.1.5 Gender Characteristics of Asante using Fricative Duration 46 4.1.6 Duration of Asante Fricatives at Different Places of Articulation 48 4.1.7 Second Formant (F2) Vowel Transition Mean Values of Asante 49 4.1.8 Gender Characteristics of Asante Fricatives Using F2 Vowel Transition 51 4.1.9 F2 Transition of Asante Fricatives at various Places of Articulation 53 4.2 BONO DIALECT 54 4.2.1 Bono Spectral Peak Location Mean Values 55 4.2.2 Gender Characteristics of Bono Fricatives Using Spectral Peak Location 56 4.2.3 Spectral Peak Location of Bono Fricatives at various Places of Articulation 58 4.2.4 Fricative Duration Mean for Bono Dialect Speakers 59 4.2.5 Gender Characteristics of Bono Fricative using Duration 60 4.2.6 Duration of Bono Fricatives at Different Places of Articulation 62 4.2.7 Second Formant (F2) Vowel Transition Mean Values of Bono 63 4.2.8 Gender Characteristics of Bono Fricatives Using F2 Vowel Transition 65 vii University of Education,Winneba http://ir.uew.edu.gh 4.2.9 F2 Transition of Bono Fricatives at Different Places of Articulation. 67 4.3 Denkyira Dialect 68 4.3.1 Spectral Peak Location Mean for Denkyira Speakers 68 4.3.2 Gender Characteristics of Denkyira Fricatives using Spectral Peak 69 4.3.3 Spectral Peak Location of Denkyira Fricatives at Different Place of Articulation 72 4.3.4 Fricative Duration Mean Values of Denkyira 73 4.3.5 Gender Characteristics of Denkyira using Fricative Duration 74 4.3.6 Duration of Denkyira Fricatives at Different Places of Articulation 77 4.3.7 Second Formant (F2) Transition Mean for Denkyira Dialect Speakers 78 4.3.8 Gender Characteristics of Denkyira Fricatives Using F2 Vowel Transition 79 4.3.9 Second Formant (F2) Transition of Denkyira at Different Places of Articulation 82 4.4 Twi Speakers 82 4.4.1 Mean Values of Spectral Peak Location for Twi 83 4.4.2 Gender Characteristics of Twi Fricatives for Spectral Peak Location 84 4.4.3 Spectral Peak Location of Twi Fricatives at Different Places of Articulation 85 4.4.4 Spectral Peak Location of Asante, Bono and Denkyira Fricatives 86 4.4.5 Mean Duration of Twi Fricatives 87 viii University of Education,Winneba http://ir.uew.edu.gh 4.4.6 Gender Characteristics of Twi Fricatives Using Duration 88 4.4.7 Duration of Fricatives of Twi at Different Places of Articulation 90 4.4.8 Duration of Asante, Bono and Denkyira Fricatives 91 4.4.9 Mean of Second Formant (F2) Transition for Twi 92 4.4.10 Gender Characteristics of Twi Fricatives using F2 Transition 93 4.4.11 Gender Characteristics of Twi Fricatives 94 4.4.12 F2 Transition of Twi Fricatives at Different Place of Articulation 95 4.4.13 F2 Transition of Asante, Bono and Denkyira Fricatives 96 4.5 Summary and Conclusion 97 CHAPTER FIVE CONCLUSION 5.0 Introduction 99 5.1 Summary of Results 99 5.1.1 Summary of Spectral Peak Location Results 99 5.1.2 Summary of Duration Results 101 5.1.3 Summary of Second Formant (F2) Transition Results 102 5.2 Discoveries/Findings 103 5.3 Implications for Future Study 103 5.4 Recommendations 104 5.5 Conclusion 105 REFERENCES 106 Appendix A 110 Appendix B 111 Appendix C 112 Appendix D 121 Appendix E 130 ix University of Education,Winneba http://ir.uew.edu.gh LIST OF TABLES Table 4.1.1 Mean Values of Spectral Peak Location for Asante Speakers at Different Word Positions 41 Table 4.1.2 Mean Values of Spectral Peak Location of Male and Female Speakers of Asante at Different Word Positions 42 Table 4.1.3 Differences and Similarities between Male and Female Speakers of Asante 44 Table 4.1.4 Paired Sample T-Test on Spectral Peak Location for Asante Speakers 45 Table 4.1.5 Mean Values of Duration of Male and Female Speakers of Asante at Different Word Positions 45 Table 4.1.6 Mean Values of Fricative Duration for Male and Female Speakers of Asante at different Word Positions 47 Table 4.1.7 Differences and Similarities between Males and Females of Asante 48 Table 4.1.8 Paired Sample T-Test on Duration for Asante Speakers 49 Table 4.1.9 Mean Values of F2 Vowel Transition of Male and Female Speakers of Asante at Different Word Positions 50 Table 4.1.10 Mean Values of Second Formant Transitions for Male and Female Speakers of Asante in Monosyllabic and Disyllabic Words 51 Table 4.1.11 Differences and Similarities in Transition between Male and Female Speakers of Asante using One-Way ANOVA 53 Table 4.1.12 Paired Sample T-Test on F2 Transition for Asante Speakers 54 Table 4.2.1 Mean Values of Spectral Peak Location for Bono Speakers at Different Word Positions 55 Table 4.2.2 Mean Values of Fricative Spectral Peak Location for Male and Female Speakers of Bono at Different Word Positions 57 Table 4.2.3 Differences and Similarities between Male and Female Speakers of Bono 58 Table 4.2.4 Paired Sample