Phonetic tone signals quantity and word structure

Many languages exploit suprasegmental devices in signaling word meaning. Tone languages exploit fundamental frequency whereas quantity languages rely on segmental durations to distinguish otherwise similar words. Traditionally, duration and tone have been taken as mutually exclusive. However, some evidence suggests that, in addition to durational cues, phonological quantity is associated with and co-signaled by changes in fundamental frequency in quantity languages such as Finnish, Estonian, and Serbo-Croat. The results from the present experiment show that the structure of disyllabic word stems in Finnish are indeed signaled tonally and that the phonological length of the stressed syllable is further tonally distinguished within the disyllabic sequence. The results further indicate that the observed association of tone and duration in perception is systematically exploited in speech production in Finnish.Peer reviewe

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

Fine phonetic detail and intonational meaning

International audienceThe development of theories about form-function relations in intonation should be informed by a better understanding of the dependencies that hold among different phonetic parameters. Fine phonetic detail encodes both linguistically structured meaning and paralinguistic meaning. <BR /

On the pragmatic and semantic functions of Estonian sentence prosody

The goal of the dissertation was to investigate intonational correlates of information structure in a free word order language, Estonian. Information-structural categories such as focus or givenness are expressed by different grammatical means (e.g. pronoun, presence of accent, word order etc.) in different languages of the world (Chafe, 1976; 1987; Prince, 1981; 1992; Lambrecht, 1994; Gundel, 1999). The main cue of focus in intonation languages (e.g. English and German) is pitch accent (Halliday, 1967a; Ladd, 2008). In free word order languages, information structure affects the position of words in a sentence (É. Kiss, 1995) and sometimes it is even implied that word order in a free word order language might function like pitch accent in an intonation language (Lambrecht 1994: 240). The study reports on perception and production experiments on the effects of focus and givenness on Estonian sentence intonation. The aim of the experiments was to establish whether information structure has tonal correlates in Estonian, and if so, whether information structure or word order interacts more strongly with sentence intonation. A perception experiment showed that L1-Estonian listeners perceive pitch prominence as focus and accent shift as a change of sentence focus. A speech production study showed congruently that L1-Estonian speakers do use accent shift, and mark sentence focus with pitch accent. Another speech production experiment demonstrated that there is no phonetic difference between new information focus (e.g. “What did Lena draw?” – “Lena drew a whale.”) and corrective focus (e.g. “Lena drew a lion.” – “No! She drew a whale”). The last experiment showed that given information is signalled with varying F0 range, if followed by focus, but without a pitch accent, if preceded by focus. All the experiments revealed that word order has a weak influence on sentence intonation. Sentence intonation interacts with focus and givenness in Estonian. As a conclusion, it is suggested that the pragmatic functions of word order, which apparently can be overridden by focus interpretation, are slightly different from the functions of pitch accent

A Sound Approach to Language Matters: In Honor of Ocke-Schwen Bohn

The contributions in this Festschrift were written by Ocke’s current and former PhD-students, colleagues and research collaborators. The Festschrift is divided into six sections, moving from the smallest building blocks of language, through gradually expanding objects of linguistic inquiry to the highest levels of description - all of which have formed a part of Ocke’s career, in connection with his teaching and/or his academic productions: “Segments”, “Perception of Accent”, “Between Sounds and Graphemes”, “Prosody”, “Morphology and Syntax” and “Second Language Acquisition”. Each one of these illustrates a sound approach to language matters

Tonal placement in Tashlhiyt: How an intonation system accommodates to adverse phonological environments

In most languages, words contain vowels, elements of high intensity with rich harmonic structure, enabling the &nbsp;perceptual retrieval of pitch. By contrast, in Tashlhiyt, a Berber language, words can be composed entirely of voiceless segments. When an utterance consists of such words, the phonetic opportunity for the execution of intonational pitch movements is exceptionally limited. This book explores in a series of production and perception experiments how these typologically rare phonotactic patterns interact with intonational aspects of linguistic structure. It turns out that Tashlhiyt allows for a tremendously flexible placement of tonal events. Observed intonational structures can be conceived of as different solutions to a functional dilemma: The requirement to realise meaningful pitch movements in certain positions and the extent to which segments lend themselves to a clear manifestation of these pitch movements

Tonal placement in Tashlhiyt: How an intonation system accommodates to adverse phonological environments

In most languages, words contain vowels, elements of high intensity with rich harmonic structure, enabling the &nbsp;perceptual retrieval of pitch. By contrast, in Tashlhiyt, a Berber language, words can be composed entirely of voiceless segments. When an utterance consists of such words, the phonetic opportunity for the execution of intonational pitch movements is exceptionally limited. This book explores in a series of production and perception experiments how these typologically rare phonotactic patterns interact with intonational aspects of linguistic structure. It turns out that Tashlhiyt allows for a tremendously flexible placement of tonal events. Observed intonational structures can be conceived of as different solutions to a functional dilemma: The requirement to realise meaningful pitch movements in certain positions and the extent to which segments lend themselves to a clear manifestation of these pitch movements