Acoustic Analysis of the Acquisition of Acceptable "r" in American English

1971 ◽  
Vol 42 (2) ◽  
pp. 543
Author(s):  
Robert P. Klein
2018 ◽  
Vol 8 (4) ◽  
pp. 115
Author(s):  
Abdul Malik Abbasi ◽  
Mansoor Ahmed Channa ◽  
Stephen John ◽  
Masood Akhter Memon ◽  
Rabia Anwar

Acoustic analysis tests the hypothesis that the physical properties of Pakistani English (PaKE) vowels differ in terms of acoustic measurements of Native American English speakers. The present paper aims to document the physical behavior of English vowels produced by PaKE learners. The major goal of this paper is to measure the production of sound frequencies coupled with vowel duration. The primary aim of this paper is to explore the different frequencies and duration of the vowels involved in articulation of PaKE. English vowels selected for this purpose are: /æ/, /ɛ/, /ɪ/, /ɒ/ and /ə/. Total ten samplings were obtained from the department of computer science at Sindh Madressatul Islam University, Karachi. The study was based on the analysis of 500 (10×5×10=500) voice samples. Five vowel minimal pairs were selected and written in a carrier phrase [I say CVC now]. Ten speakers (5 male & five female) recorded their 500 voice samples using Praat speech processing tool and a high-quality microphone on laptop in a computer laboratory with no background sound. Three parameters were considered for the analysis of PaKE vowels i.e., duration of five vowels, fundamental frequency (F1 and F2). It was hypothesized that the properties of PaKE vowels are different from that of English native speakers. The hypothesis was accepted since the acoustic measurements of PaKE and English Native American speakers’ physical properties of sounds were discovered different.


1998 ◽  
Vol 103 (5) ◽  
pp. 3092-3092
Author(s):  
Patricia N. Schwartz ◽  
Christina F. Famoso ◽  
Adelia DaSilva

2019 ◽  
Vol 16 (1) ◽  
pp. 15-28
Author(s):  
Biljana Čubrović

This vowel study looks at the intricate relationship between spectral  characteristics and vowel duration in the context of American English vowels, both from a native speaker (NS) and non-native speaker (NNS) perspective. The non-native speaker cohort is  homogeneous in the sense that all speakers have Serbian as their mother tongue, but have been long-time residents of the US. The phonetic context investigated in this study is /bVt/, where V is one of the American English monophthongs /i ɪ u ʊ ε æ ʌ ɔ ɑ/. The results of the acoustic analysis show that the NNS vowels are generally longer than the NS vowels. Furthermore, NNSs neutralise the vowel quality of two tense and lax pairs of vowels, /i ɪ/ and /u ʊ/, and rely more heavily on the phonetic duration when prononuncing them.


Author(s):  
Robert Hagiwara

AbstractGeneral properties of the Canadian English vowel space are derived from an experimental-acoustic study of vowel production underway in Winnipeg, Manitoba. Comparing the preliminary Winnipeg results with similar data from General American English confirms previously described generalizations for Canadian English: the merger of low-back vowels, the relative retraction of /æ/, and the relative advancement of /u/ and /Ʊ/. However, a similar comparison of the Winnipeg sample with comparable Southern California data disputes the accuracy of the claim that Canadian Shift (Clarke et al. 1995) is a feature of ‘general’ Canadian and Californian English. An acoustic analysis uncovers subtle phonetic distinctions that make possible a more precise characterization of Canadian Raising: rather than only adjusting the height of the nucleus, Winnipeg speakers produce a directional shift in both the nucleus and offglide of the diphthongs /aɪ, aƱ/; this process applies to all three diphthongs (including /oɪ/).


2017 ◽  
Vol 23 (2) ◽  
pp. 229-252
Author(s):  
REMCO KNOOIHUIZEN

This article analyses a case of second-dialect performance as an idealised instance of second-dialect acquisition, without mitigating factors such as access, analytical ability and motivation. It focuses on the Australian English and American English speech of three young Australian actors. An acoustic analysis of their short-vowel systems shows that they can successfully adapt to perform in an American English accent, but that their second-dialect system is less stable and more variable than their native system.A foreign-accent rating experiment on the actors’ American English with American English judges shows that the actors on average are thought to sound slightly less American than the native American English-speaker controls. The discrepancy between the acoustic accuracy and listener acceptability may be explained by judges attending to different features from those included in the acoustic study.This study of second-dialect performance shows what is maximally possible in second-dialect acquisition. Given the difference between the two measures of success, studies of second-dialect acquisition would benefit from including subjective measures in addition to acoustic accuracy.


2017 ◽  
Vol 48 (3) ◽  
pp. 331-356 ◽  
Author(s):  
Lisa Davidson

This study presents a detailed acoustic analysis of phonation in voiceless obstruents in American English (AE) to investigate the acoustic consequences of the laryngeal timing that has been reported in the literature. The current study examines the appearance of phonation in voiceless obstruents in a corpus of read speech with 37 AE speakers. Linguistic factors such as phrase and word position, stress, and the preceding phoneme are examined and are shown to condition the presence and degree of phonation during the constriction period of stops and fricatives. The amount of phonation present is further analyzed by characterizing where in the constriction interval phonation appears. Carryover phonation (or bleed) from a preceding sonorant is most common for stops, while a trough pattern (phonation that dies out and then begins again before the end of the closure) is more prevalent for fricatives. These acoustic patterns, together with previous reports of laryngeal articulation and air pressure measures, have implications for the representation of laryngeal timing in a gestural phonology framework.


2006 ◽  
Vol 17 (05) ◽  
pp. 350-366 ◽  
Author(s):  
Margaret W. Skinner ◽  
Laura K. Holden ◽  
Marios S. Fourakis ◽  
John W. Hawks ◽  
Timothy Holden ◽  
...  

Thirty "new" lists of monosyllabic words were created at the University of Melbourne and recorded by Australian and American English speakers. These new lists and the ten original CNC lists (Peterson and Lehiste, 1962) were used during the feasibility study of the Nucleus Research Platform 8 Cochlear Implant System (Holden et al, 2004). Performance was similar across original and new lists for six implanted Australian subjects; for four implanted U.S. subjects, mean performance was 23 percentage points lower with the new than with the original lists. To evaluate differences between original and new lists for the American English recording, 22 CI recipients were administered all 40 CNC lists (30 new and 10 original lists). The overall mean word score for the new lists was significantly lower (22.3 percentage points) than for the original lists. Acoustic analysis revealed that decreased performance was most likely due to reduced amplitudes of certain initial and final consonants. The new CNC lists can be used as more difficult test material for clinical research.


2011 ◽  
Vol 23 (1) ◽  
pp. 45-86 ◽  
Author(s):  
Ewa Jacewicz ◽  
Robert Allen Fox ◽  
Joseph Salmons

AbstractThis study examines cross-generational changes in the vowel systems in central Ohio, southeastern Wisconsin, and western North Carolina. Speech samples from 239 speakers, males and females, were divided into three age groups: grandparents (66–91 years old), parents (35–51), and children (8–12). Acoustic analysis of vowel dynamics (i.e., formant movement) was undertaken to explore variation in the amount of spectral change for each vowel. A robust set of cross-generational changes in /ɪ, ɛ, æ, ɑ/ was found within each dialect-specific vowel system, involving both their positions and dynamics. With each successive generation, /ɪ, ɛ, æ/ become increasingly monophthongized and /ɑ/ is diphthongized in children. These changes correspond to a general anticlockwise parallel rotation of vowels (with some exceptions in /ɪ/ and /ɛ/). Given the widespread occurrence of these parallel chainlike changes, we term this development the “North American Shift,” which conforms to the general principles of chain shifting formulated by Labov (1994) and others.


1998 ◽  
Vol 103 (5) ◽  
pp. 3092-3092
Author(s):  
Lisa Jayne Romano ◽  
Fredericka Bell‐Berti ◽  
Eugenia Lorin

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