A real interlocutor in elicitation techniques: does it matter?

This study investigates whether adding a real interlocutor to elicitation techniques would result in requests that are different from those gathered through versions with a hypothetical interlocutor. For this purpose, a written method is chosen. One group of 40 students receive a written discourse completion task (DCT) with two situations that ask respondents to write emails on paper to an imaginary professor. This data is compared to earlier data collected from 27 students, where a group of students composed emails for the same situations and sent them electronically to their professor. Thus, while one group write emails to a hypothetical professor, the other group is provided with a real interlocutor. The data is analyzed for the inclusion of opening and closing moves, density, the level of directness and the choices of moves in the opening and closing sequences, as well as the choices of supportive moves. Results indicate significant differences in (the) level of directness, and the choices of moves in the opening and closing sequences. The other analyses do not show significant differences. The findings reveal that the addition of a real interlocutor does make a difference, albeit not a drastic one. The results have implications for the design of elicitation techniques that aim to simulate real life

The listening talker: A review of human and algorithmic context-induced modifications of speech

International audienceSpeech output technology is finding widespread application, including in scenarios where intelligibility might be compromised - at least for some listeners - by adverse conditions. Unlike most current algorithms, talkers continually adapt their speech patterns as a response to the immediate context of spoken communication, where the type of interlocutor and the environment are the dominant situational factors influencing speech production. Observations of talker behaviour can motivate the design of more robust speech output algorithms. Starting with a listener-oriented categorisation of possible goals for speech modification, this review article summarises the extensive set of behavioural findings related to human speech modification, identifies which factors appear to be beneficial, and goes on to examine previous computational attempts to improve intelligibility in noise. The review concludes by tabulating 46 speech modifications, many of which have yet to be perceptually or algorithmically evaluated. Consequently, the review provides a roadmap for future work in improving the robustness of speech output

The relationship between test-takers’ first language, listening proficiency and their performance on paired speaking tests

“A thesis submitted to the University of Bedfordshire, in partial fulfilment of the requirements for the degree of Doctor of Philosophy”.This thesis presents a study of the relationship between test-takers’ first language, listening proficiency and their performance on paired speaking tests. Forty participants from two different L1 backgrounds (20 Urdu and 20 Thai) participated in the study. They took two paired speaking tests: one with a shared L1 partner, and one with a non-shared L1 partner, as well as a listening test and a monologic speaking test to measure their listening ability and individual speaking ability. After each paired speaking test, the participants were also interviewed about their test-taking experience. All speaking tests and interviews were video recorded and transcribed. Raters awarded test-takers analytical speaking test scores (grammar and vocabulary, discourse management, pronunciation and interactive communication) and provided comments to justify their scores. Raters also participated in a stimulated recall session. The mixed-methods approach was utilised in analysing and triangulating different data sources. The data analysed in this study included listening and speaking test scores, raters’ perceptions of the test-takers’ speaking performance gathered from stimulated recalls and test-takers’ stimulated recall interviews, as well as the interactional discourse data in the paired speaking formats. The combination of quantitative analysis, Conversation Analysis (CA) and thematic analysis informed the relationship between test-takers’ listening proficiency, their L1 and their paired speaking performance

The role of vowel hyperarticulation in clear speech to foreigners and infants

This thesis was submitted for the award of Doctor of Philosophy and was awarded by Brunel University LondonResearch on clear speech has shown that the type of clear speech produced can vary depending on the speaker, the listener and the medium. Although prior research has suggested that clear speech is more intelligible than conversational speech for normal-hearing listeners in noisy environments, it is not known which acoustic features of clear speech are the most responsible for enhanced intelligibility and comprehension. This thesis focused on investigating the acoustic characteristics that are produced in clear speech to foreigners and infants. Its aim was to assess the utility of these features in enhancing speech intelligibility and comprehension. The results of Experiment 1 showed that native speakers produced exaggerated vowel space in natural interactions with foreign-accented listeners compared to native-accented listeners. Results of Experiment 2 indicated that native speakers exaggerated vowel space and pitch to infants compared to clear read speech. Experiments 3 and 4 focused on speech perception and used transcription and clarity rating tasks. Experiment 3 contained speech directed at foreigners and showed that speech to foreign-accented speakers was rated clearer than speech to native-accented speakers. Experiment 4 contained speech directed at infants and showed that native speakers rated infant-directed speech as clearer than clear read speech. In the fifth and final experiment, naturally elicited clear speech towards foreign-accented interlocutors was used in speech comprehension tasks for native and non-native listeners with varying proficiency of English. It was revealed that speech with expanded vowel space improved listeners’ comprehension of speech in quiet and noise conditions. Results are discussed in terms of the Lindblom’s (1990) theory of Hyper and Hypoarticulation, an influential framework of speech production and perception.Brunel University Isambard Research Scholarshi

A multi-dimensional analysis

This book provides an in-depth, multi-dimensional analysis of conversations between autistic adults. The investigation is focussed on intonation style, turn-taking and the use of backchannels, filled pauses and silent pauses. Previous findings on intonation style in the context of autism spectrum disorder (ASD) are contradictory, with claims ranging from characteristically monotonous to characteristically melodic intonation. A novel methodology for quantifying intonation style is used, and it is revealed that autistic speakers tended towards a more melodic intonation style compared to control speakers in the data set under investigation. Research on turn-taking (the organisation of who speaks when in conversation) in ASD is limited, with most studies claiming a tendency for longer silent gaps in ASD. No clear overall difference in turn-timing between the ASD and the control group was found in the data under study. There was, however, a clear difference between groups specifically in the earliest stages of dialogue, where ASD dyads produced considerably longer silent gaps than controls. Backchannels (listener signals such as mmhm or okay) have barely been investigated in ASD to date. The current analysis shows that autistic speakers produced fewer backchannels per minute (particularly in the early stages of dialogue), and that backchannels were less diverse prosodically and lexically. Filled pauses (hesitation signals such as uhm and uh) in ASD have been the subject of a handful of previous studies, most of which claim that autistic speakers produced fewer uhm tokens (specifically). It is shown that filled pauses were produced at an identical rate in both groups and that there was an equivalent preference of uhm over uh. ASD speakers differed only in the prosodic realisation of filled pauses. It is further shown that autistic speakers produced more long silent (within-speaker) pauses than controls. The analyses presented in this book provide new insights into conversation strategies and intonation styles in ASD, as reviewed in a summary analysis. The findings are discussed in the context of previous research, general characteristics of cognition in ASD, and the importance of studying communication in interaction and across neurotypes

How to say no without saying no : A study of the refusal strategies of Americans and Germans

Cultures have been shown to vary drastically in their interactional styles, leading to different preferences for modes of speech act behavior. Culturally colored interactional styles create culturally determined expectations and interpretative strategies, and can lead to breakdowns in intercultural and interethnic communication. This dissertation investigated the differences between Germans and Americans in the speech act of rejection which can be explained by the general cultural differences. The native speaker subjects in this study were graduate students enrolled at four American Universities and at four Universities in the Federal Republic of Germany. The elicitation method used for this data collection was a discourse completion test, originally developed by Blum-Kulka that has been widely used for the collection of data on speech act realization both within and across language groups. The 18 situations included four stimuli for eliciting refusals: requests, invitations, offers, and suggestions. Each situation consisted of three different variables: social status (low, equal, high), social distance (stranger, acquaintance, intimate), and gender (same, opposite). The results indicated that Germans and Americans can be distinguished on the basis of their refusal strategies, since the choices of refusal strategies reflected the different characteristics of each culture: (1) Americans varied their refusal strategies according to status rather than social distance while Germans varied their refusal strategies according to social distance rather than status; (2) Germans employed fewer semantic formulas than did Americans in all 18 situations; (3) Germans employed more gratitude as well as more politeness strategies, positive and negative, than did Americans; (4) Germans employed an Avoidance strategy more often than Americans while Americans used the word ‘no’ more often than Germans; (5) German refusals were less direct and resorted to explanations other than their own inclinations in refusing, also German excuses were more vague than those given by Americans; (6) American refusals tended to be more direct and often gave their own inclinations as reasons for the refusal; (7) Germans used a third party for their explanations while Americans relied on their own decisions for their explanations

Nicaragua y ¿vos, tú, o usted? : pronoun use and identity construction in an area of recent linguistic and cultural contact

This dissertation answers a call for a variety of methods in analyzing personal pronouns (e.g. van Compernolle & Williams 2012; Félix-Brasdefer 2015), focusing on second-person singular pronoun use (vos, tú, and usted) by local participants (‘locals’) in a rural Nicaraguan community experiencing linguistic and cultural contact driven by tourism. Pronoun selection is shown to vary according to the amount of contact locals have with outsiders in their community. Evidence demonstrates that locals use tú, a variant previously reported as virtually absent from Nicaraguan Spanish (e.g. Lipski 1994, 2008; Páez Urdaneta 1981), with both outsiders and other locals. This practice is shown to coincide with a sense of prestige attributed to the tú form, and stigma, to vos, the form reported as ubiquitous in Nicaraguan Spanish (Lipski 1994, 2008; Páez Urdaneta 1981; Rey 1997; Thiemer 1989). Through an interactional sociolinguistic analysis, the study also answers a call by Jaffe (2009) to analyze stance using empirical approaches that consider social and historical contexts. Identified functions of pronoun switching include flirting, enhancing or reducing deference, emphasizing youthfulness, and negotiating identity status and stance in new relationships. Most notably, this study shows that locals systematically switch pronouns when they shift from direct address (e.g. ¿Cómo te llamas? ‘What is your[tú] name?’) to an impersonal stance (e.g. Tenés que trabajar para comer. ‘You[vos] have [one has] to work to eat.’). Evidence supports the view that impersonal use of second-person pronouns implies some type of generalization (e.g. with reference to a group, category, type, state, etc.), which can serve to create solidarity between conversational partners and to generate empathy over the category being generalized (Deringer et al. 2015; Gast et al. 2015). However, this study refutes the claim that impersonal pronouns “establish a direct referential link to the addressee, just like personal uses” (Gast et al 2015: 148), providing as evidence the frequent pronominal switches by locals at the address/impersonal speech boundary. Finally, this dissertation contributes a description of Nicaraguan Spanish, the least-studied Central American variety (Lipski 1994), and focuses on a particular variety spoken by historically understudied speakers from a rural region of high poverty and a low level of formal education.Spanish and Portugues

Phonetic convergence in the speech of Polish learners of English

This dissertation examines variability in the phonetic performance of L2 users of English and concentrates on speech convergence as a result of exposure to native and non-native pronunciation. The term speech convergence refers to a process during which speakers adapt their linguistic behaviour according to who they are talking or listening to. Previous studies show that the phenomenon may take place both in a speaker’s L1 (e.g. Giles, 1973; Coupland, 1984; Gregory and Webster, 1996; Pardo, 2006; Babel; 2010) and L2 (e.g. Beebe, 1977; Berkowitz, 1986; Lewandowski, 2012; Rojczyk, 2013; Trofimovich and Kennedy, 2014). Speech convergence can be subdivided into three types of linguistic behaviour: convergence (the process of making one’s speech more similar to that of another person), divergence (the process of moving away from the speech of another person) and maintenance (the process of maintaining one’s default linguistic behaviour in spite of exposure to the speech of another person). The dissertation consists of four chapters; the first two provide theoretical background, the next two describe the study and its findings. Chapter One is concerned with previous research on speech convergence. The chapter reviews the methodology and approaches used in previous work and discusses the range of factors that may affect convergence strategies. Chapter Two provides an overview of relevant studies in the field of L2 phonetics. It describes the structure and formation of the L2 sound system and the numerous socialpsychological, linguistic and psycholinguistic variables that may influence L2 phonetic performance. Chapter Three describes the study on speech convergence in the pronunciation of Polish learners of English, i.e. the aims, hypotheses, methodology and results. In Chapter Four, the results of the study on phonetic convergence in the speech of Polish learners of English are analysed and discussed. The phenomenon of speech convergence has been explored under different names and with the use of various frameworks and methodological procedures. Some researchers refer to the process as accommodation and investigate it by analysing spontaneous conversational data (e.g. Giles, 1973; Bourhis and Giles, 1977; Coupland, 1984; Gregory and Webster, 1996). Other researches use the term imitation and examine the phenomenon in socially minimal, laboratory-based settings (e.g. Goldinger, 1998; Schokley et al., 2004; Delvaux and Soquet, 2007; Nielsen, 2011). Irrespective of terminological and methodological differences, the results of previous studies on phonetic convergence indicate that the process is conditioned by 171 a variety of linguistic (e.g. Mitterer and Ernestus, 2008; Babel, 2009; Brouwer et al., 2010; Nielsen, 2011) and social-psychological factors (Giles, 1973; Bilous i Krauss, 1988; Gregory and Webster, 1996; Pardo, 2006; Babel, 2009, Yu et al., 2013) Research on L2 acquisition and non-native pronunciation shows that the development of the L2 sound system is a complex and dynamic process. It has been argued that the productions of L2 users are generated by interlanguage (IL), an independent linguistic system that encompasses elements of the learner’s L1 and L2 but does not correspond exactly to either the NL or the TL (e.g. Selinker, 1972; 1992). Importantly, previous findings indicate that the phonetic performance of non-native speakers is influenced not only by their L1 and L2 sound systems but also by a range of various psycholinguistic (e.g. Flege, 1987; Flege et al., 2003) and social-psychological factors (e.g. Taylor et al., 1971; Zuengler, 1982; Gatbonton et al., 2011). The process of adapting one’s pronunciation as a result of exposure to another person’s speech has been detected in the productions of L2 users (e.g. Beebe, 1977; Berkowitz, 1986; Lewandowski, 2012; Rojczyk, 2013; Trofimovich and Kennedy, 2014). Similarly as in the case of L1 speech convergence, previous studies show that the magnitude of L2 speech convergence may depend upon a variety of social-psychological and linguistic variables. An interesting aspect of L2 phonetic convergence that has not yet been thoroughly explored is the comparison of pronunciation shifts upon exposure to the speech of native speakers of the TL as compared with pronunciation shifts upon exposure to the speech of other learners. The aim of the study was to address this issue by investigating and comparing L2 convergence strategies upon exposure to native and non-native pronunciation. The study concentrated on the phonetic performance of advanced Polish learners of English, who were exposed to two pronunciation varieties: Polish-accented English and native English. The participants were 38 native speakers of Polish, majoring in English Studies and recruited from the University of Lodz. The subjects listened to pre-recorded productions provided by two model talkers/interlocutors: a native speaker of Standard Southern British English and a native speaker of Polish (a qualified phonetician imitating a heavy Polish accent in English). The phonetic variables under investigation were the following: aspiration in word-initial /p t k/, pre-voicing in word-initial /b d g/, vowel duration as a cue for consonant voicing in English /æ e ɪ iː/. The experimental procedure consisted of several phases. First, the informants were instructed to identify the target words in an auditory naming task (baseline condition). Next, they were asked to listen to pre-recorded English words provided by the two 172 model talkers/interlocutors and to identify the words by saying them out loud (imitation condition). Finally, the subjects were required to read the target words for the two model talkers/interlocutors to listen to at a later time (accommodation condition). Following the production stage of the experiment, the participants completed a questionnaire whose purpose was to gauge attitudes towards native and foreign-accented English. Three hypotheses were formulated to be tested in the course of the study. Hypothesis 1 predicted that convergence strategies following exposure to native and non-native English will vary as a function of model talker/interlocutor. Hypothesis 2 predicted that convergence strategies following exposure to native and non-native English will be affected by the subjects’ attitudes towards native and Polish-accented English. Hypothesis 3 predicted that convergence strategies following exposure to native and non-native English will differ as a function of phonetic context (place of articulation and vowel category). Acoustic and statistical analysis of the data revealed that the subjects modified their linguistic behaviour following exposure to the speech of the model talkers/interlocutors, which corroborates the claim that L2 speech convergence phenomena are present in nonnative pronunciation. Hypothesis 1 was partially supported by the results of the study. It was found that speech behaviour following exposure to native and non-native English varied as a function of model talker/interlocutor in all but two instances (accommodation on pre-voicing and imitation of vowel duration). The results suggests that when using a second language, speakers may use different convergence strategies depending on the native/non-native status of the model talker or interlocutor. Hypothesis 2 was partially supported by the data. The results indicate that a strong preference for target-like pronunciation may prompt learners to converge towards native speech and diverge from foreign-accented speech. However, the factor does not seem to operate if a learner has not succeeded in mastering a given TL pronunciation feature, i.e. the impact of attitudinal factors on the magnitude of convergence in non-native pronunciation appears to be conditioned by the stage of acquisition of a given TL phonetic feature. Hypothesis 3 was not borne out the results obtained in the study. It was found that convergence strategies following exposure to native and non-native English did not vary depending on phonetic context. Overall, the findings of the study provide support for the claim that the process of speech convergence operates in L2 pronunciation and imply that certain social-psychological and psycholinguistic factors may have an impact on learners’ convergence strategies