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In this paper we focus on the similarities tying together the second segment of an onset cluster and a singleton coda segment. We offer a proposal based on Baertsch (2002) accounting for this similarity and show how it captures a number of observations which have defied previous explanation. In accounting for the similarity of patterning between the second member of an onset and a coda consonant, we propose to augment Prince & Smolensky's (P&S, 1993/2002) Margin Hierarchy so as to distinguish between structural positions that prefer low sonority and those that prefer high sonority. P&S's Margin Hierarchy, which gives preference to segments of low sonority, applies to singleton onsets; this is our M1 hierarchy. Our proposed M2 hierarchy applies both to the second member of an onset and to a singleton coda. The M2 hierarchy differs from the M1 hierarchy in giving preference to consonants of high sonority. Splitting the Margin Hierarchy into the M1 and M2 hierarchies allows us to explain typological, phonotactic, and acquisitional observations that have defied previous explanation. In Section 2 of this paper, we briefly provide background on the links that tie together the second member of an onset and a singleton coda. In Section 3, we review P&S's Margin Hierarchy, showing that it becomes problematic when extended to coda consonants. We then offer our proposal for a split margin hierarchy. Section 4 extends the split margin approach to complex onsets. We then show how it is able to account for various typological, phonotactic, and acquisitional observations. In Section 5, we will conclude the paper by briefly sketching how the split margin approach enables us to analyze syllable contact phenomena without requiring a specific syllable contact constraint (or additional hierarchy) or reference to an external sonority scale.
The present paper offers a summary of the results of two earlier experiments (Nawrocki and Gonet 2004; Nawrocki 2004), in which acoustic properties of the voiceless velar fricative phoneme /x/ in Southern Polish were investigated.
As is found in both studies (Nawrocki and Gonet 2004; Nawrocki 2004), speakers of both genders favour glottal articulation, with partial or full voicing. Word final contexts are decisively in favour of [x]. The word initial, prevocalic positions seem to allow quite a number of allophonic variants of /x/ . These are: [x], [ɦ], [ç] and, additionally, the voiceless glottal, the pharyngeal or the epiglottal [h]/[ħ]/[ʜ]. Another factor taken into account is the coarticulation effect of the vocalic context on the choice of articulation. Based on the results of the experiments, a reformulated allophonic composition is proposed for Polish /x/. It makes room for previously unconsidered pharyngeal and glottal allophones.
In order to inspect the acoustic properties of the allophones of Polish /x/ further, their static and dynamic spectral features are compared to those of phonetically similar sounds in other languages where they have the status of independent phonemes. Special attention is paid to the distribution of spectral peaks and their intensity. The fact that in Polish there are no 'back' fricative phonemes that would contrast with /x/ creates a wide range of acceptable allophonic articulations that cannot be challenged from either articulatory or perceptual points of view.
In this paper, we investigate two pairs of structures in German and English: German Weak Pronoun Left Dislocation and English Topicalization, on the one hand, and German and English Hanging Topic Left Dislocation, on the other. We review the prosodic, lexical, syntactic, and discourse evidence that places the former two structures into one class and the latter two into another, taking this evidence to show that dislocates in the former class are syntactically integrated into their 'host' sentences while those in the latter class are not. From there, we show that the most straightforward way to account for this difference in 'integration' is to take the dislocates in the latter structures to be 'orphans', phrases that are syntactically independent of the phrases with which they are associated, providing additional empirical and theoretical support for this analysis — which, we point out, has a number of antecedents in the literature.
The phenomenon of phonological opacity has been the subject of much debate in recent years, with scholars opposed to the Optimality Theory (OT) research program arguing that opacity proves OT must be false, while the solutions proposed within OT, such as sympathy theory and stratal OT , have proved to be unsatisfying to many OT proponents, who have found these proposals to be inconsistent with the parallelist approach to phonological processes otherwise characteristic of OT. In this paper I reexamine one of the best known cases of opacity, that found in three processes of Tiberian Hebrew (TH), and argue that these processes only appear to be opaque, because previous analyses have treated them as pure phonology, rather than as an interaction between phonology and morphology. Once it is recognized that certain words of TH are lexically marked to end with a syllabic trochee, and that the goal of paradigm uniformity exerts grammatical pressure on phonology, the three processes no longer present a problem to parallelist OT. The results suggest the possibility that all crosslinguistic instances of apparent opacity can be explained in terms of the phonology-morphology interface and that purely phonological opacity does not exist. If this claim is true, then parallelist OT can be defended against its detractors without the need for additional mechanisms like sympathy theory and stratal OT.
This study examines the movement trajectories of the dorsal tongue movements during symmetrical /VCa/ -sequences, where /V/ was one of the Hungarian long or short vowels /i,a,u/ and C either the voiceless palatal or velar stop consonants. General aims of this study were to deliver a data-driven account for (a) the evidence of the division between dorsality and coronality and (b) for the potential role coarticulatory factors could play for the relative frequency of velar palatalization processes in genetically unrelated languages. Results suggest a clear-cut demarcation between the behaviour of purely dorsal velars and the coronal palatals. Moreover, factors arising from a general movement economy might contribute to the palatalization processes mentioned.
The present study offers an Optimality-Theoretic analysis of the syllabification of intervocalic consonants and glides in Modern English. It will be argued that the proposed syllabifications fall out from universal markedness constraints – all of which derive motivation from other languages – and a language-specific ranking. The analysis offered below is therefore an alternative to the traditional rule-based analyses of English syllabification, e.g. Kahn (1976), Borowsky (1986), Giegerich (1992, 1999) and to the Optimality-Theoretic treatment proposed by Hammond (1999), whose analysis requires several language-specific constraints which apparently have no cross-linguistic motivation.
This paper investigates how syntax and focus interact in deriving the phonological phrasing of utterances in Xhosa, a Bantu language spoken in South Africa. Although the influence of syntax on phrasing is uncontroversial, a purely syntactic analysis cannot account for all the data reported for Xhosa by Jokweni (1995). Focus influences the phrasing in that it inserts a phonological phrase-boundary after the focused constituent. This generalization can account for the variation found in the phrasing of adverbials.
The findings are dealt with in an OT-based framework following Truckenbrodt's work on Chichewa (1995, 1999) which is extended to the phrasing of adjuncts.
In this paper, I argue that this apparent problem is accounted for by the interaction of constraints. For the fixed segment [ɛ] in Cɛ-reduplication, I argue that [ɛ] is the second least marked vowel in Palauan, which appears when the default vowel [ǝ] cannot appear. I show that the Palauan facts are not only consistent with the proposals of Urbanczyk (1999) and Alderete et. al (1999), but they actually provide support of their claims. In the following section, I discuss Urbanczyk's (1999) arguments concerning ROOT faithfulness in reduplication and possible asymmetries between affix reduplicants and root reduplicants. In Section 3, I introduce Palauan reduplication and discuss Finer's (1986) observations on the resulting state verb (RSV) form. I show that the RSV forms support the classification that Cɛ-reduplicants are affixes, and CVCV -reduplicants are roots. In Section 4, I discuss the shape and vowel quality of the two reduplicants. The CVCV-reduplicant has three variants: CǝCǝ, CǝC and CV. I explain this variation, illustrating why [ǝ] appears in the first two variations. Then, I discuss the shape and vowel quality of the Cɛ-reduplicant, arguing that the fixed segment [ɛ] in Cɛ-reduplication is a special case of TETU. I show that root faithfulness constraints are crucial in determining the shape and vowel quality of the reduplicants. Section 5 is the conclusion.
Ida'an-Begak is a Western Malayo-Polynesian language spoken by approximately 6,000 people on the east coast of Sabah, Malaysia, Borneo and belongs to the Sabahan subgroup of the North Borneo subgroup (Blust 1998). Ida'an-Begak has three dialects, Ida'an, spoken in the villages of Segama to the west of Lahad Datu, Ida'an Sungai spoken in the Kinabatangan and Sandakan districts, and Begak spoken in Ulu Tungku, to the east of Lahad Datu (Banker 1984).1 Moody (1993) deals with Ida'an; this paper concentrates on the Begak dialect. In this paper I will present new data gathered in the field and provide an analysis of the allomorphy. The study is based on spontaneous data as well as examples elicited from my language informants.
The goal of this paper is to survey the accent systems of the indigenous languages of Africa. Although roughly one third of the world’s languages are spoken in Africa, this continent has tended to be underrepresented in earlier stress and accent typology surveys, like Hyman (1977). This one aims to fill that gap. Two main contributions to the typology of accent are made by this study of African languages. First, it confirms Hyman's (1977) earlier finding that (stem-)initial and penult are the most common positions, cross-linguistically, to be assigned main stress. Further, it shows that not only stress but also tone and segment distribution can define prominence asymmetries which are best analyzed in terms of accent.
This paper evaluates trills [r] and their palatalized counterparts [rj] from the point of view of markedness. It is argued that [r]s are unmarked sounds in comparison to [r ]s which follows from the examination of the following parameters: (a) frequency of occurrence, (b) articulatory and aerodynamic characteristics, (c) perceptual features, (d) emergence in the process of language acquisition, (e) stability from a diachronic point of view, (f) phonotactic distribution, and (g) implications.
Several markedness aspects of [r]s and [rj] are analyzed on the basis of Slavic languages which offer excellent material for the evaluation of trills. Their phonetic characteristics incorporated into phonetically grounded constraints are employed for a phonological OT-analysis of r-palatalization in two selected languages: Polish and Czech.
This article examines the motivation for phonological stop assibilations, e.g. /t/ is realized as [ts], [s] or [tʃ] before /i/, from the phonetic perspective. Hall & Hamann (2003) posit the following two implications: (a) Assibilation cannot be triggered by /i/ unless it is also triggered by /j/, and (b) Voiced stops cannot undergo assibilations unless voiceless ones do. In the following study we present the results of three acoustic experiments with native speakers of German and Polish which support implications (a) and (b). In our experiments we measured the friction phase after the /t d/ release before the onset of the following high front vocoid for four speakers of German and Polish. We found that the friction phase for /tj/ was significantly longer than that of /ti/, and that the friction phase of /t/ in the assibilation context is significantly longer than that of /d/.
Vowel dispersion in Truku
(2004)
This study investigates the dispersion of vowel space in Truku, an endangered Austronesian language in Taiwan. Adaptive Dispersion (Liljencrants and Lindblom, 1972; Lindblom, 1986, 1990) proposes that the distinctive sounds of a language tend to be positioned in phonetic space in a way that maximizes perceptual contrast. For example, languages with large vowel inventories tend to expand the overall acoustic vowel space. Adaptive Dispersion predicts that the distance between the point vowels will increase with the size of a language's vowel inventory. Thus, the available acoustic vowel space is utilized in a way that maintains maximal auditory contrast.
This paper presents preliminary results of a phonetic and phonological study of the Ntcheu dialect of Chichewa spoken by Al Mtenje (one of the co-authors). This study confirms Kanerva's (1990) work on Nkhotakota Chichewa showing that phonological re-phrasing is the primary cue to information structure in this language. It expands on Kanerva's work in several ways. First, we show that focus phrasing has intonational correlates, namely, the manipulation of downdrift and pause. Further, we show that there is a correlation between pitch prominence and discourse prominence at the left and right periphery which conditions dislocation to these positions. Finally, we show that focus and syntax are not the only factors which condition phonological phrasing in Chichewa.
The current study focuses on the prosodic realization of negators in Saisiyat, an endangered aboriginal language of Taiwan, and compares its prosodic realization of negation with that of English. The results of this study indicate that sentential subjects are the most acoustically prominent items in the Saisiyat negative sentences measured. This contrasts sharply with the English experimental sentences, in which the negator itself was the most acoustically prominent item. These findings suggest that Saisiyat is a pitch-accent language; thus, the presence of negators does not significantly change the prosodic parameters of surrounding words. English, in contrast, is an intonation language, so the presence of negation results in substantial prosodic modification. This suggests that the phenomenon of negation is universally prominent; however, languages with different prosodic systems will adopt different strategies for realizing prominence.
This study focuses upon a detailed description and analysis of the phonetic structures of Paiwan, an aboriginal language spoken in Taiwan, with around 53,000 speakers, Paiwan, a member of the Austronesian language family, is not typologically related to the other languages such as Mandarin and Taiwanese spoken in its geographically contiguous districts, Earlier work on phonological features of Paiwan (Chang, 1999; Tseng, 2003) sought an account in terms of segments and isolated facts about reduplication and stress, without accounting for the possible roles of phrase-level and sentence-Ievel prosodic structures, Government Teaching Material (1993) listed 25 consonants and 4 vowels, without any description of phonetic features and phonological rules, Chang's (2000) reference grammar included 22 consonants and 4 vowels, with a very brief description of 5 phonological rules on single words, Regional diversity and 25 consonants have been mentioned in Pulaluyan's (2002) teaching material; however, no description of phonological rules was found in his material.
Syllable cut is said to be a phonologically distinctive feature in some languages where the difference in vowel quantity is accompanied by a difference in vowel quality like in German. There have been several attempts to find the corresponding phonetic correlates for syllable cut, from which the energy measurements of vowels by Spiekermann (2000) proved appropriate for explaining the difference between long, i.e. smoothly, and short, i.e. abruptly cut, vowels: in smoothly cut vowels, a larger number of peaks was counted in the energy contour which were located further back than in abruptly cut segments, and the overall energy was more constant throughout the entire nucleus. On this basis, we intended to compare German as a syllable cut language and Hungarian where the feature was not expected to be relevant. However, the phonetic correlates of syllable cut found in this study do not entirely confirm Spiekermann's results. It seems that the energy features of vowels are more strongly connected to their duration than to their quality.
This study reports on the results of an airflow experiment that measured the duration of airflow and the amount of air from release of a stop to the beginning of a following vowel in stop vowel-sequences of German. The sequences involved coronal, labial and velar voiced and voiceless stops followed by the vocoids /j, i:, ı, ɛ, ʊ, a/. The experiment tested the influence of the three factors voicing of stop, place of stop articulation, and the following vocoid context on the duration and amount of air as possible explanation for assibilation processes. The results show that the voiceless stops are related to a longer duration and more air in the release phase than voiced ones. For the influence of the vocoids, a significant difference could be established between /j/ and all other vocoids for the duration of the release phase. This difference could not be found for the amount of air over this duration. The place of articulation had only restricted influence. Velars resulted in significantly longer duration of the release phase compared to non-velars. A significant difference in amount of air between the places of articulation could not be found.
The present article is a follow-up study of the investigation of labiodentals in German and Dutch by Hamann & Sennema (2005), where we looked at the perception of the Dutch labiodental three-way contrast by German listeners without any knowledge of Dutch and German learners of Dutch. The results of this previous study suggested that the German voiced labiodental fricative /v/ is perceptually closer to the Dutch approximant /ʋ/ than to the corresponding Dutch voiced labiodental fricative /v/. These perceptual indications are attested by the acoustic findings in the present study. German /v/ has a similar harmonicity median and a similar centre of gravity to Dutch /ʋ/, but differs from Dutch /v/ in these parameters. With respect to the acoustic parameter of duration, German /v/ lies closer to the Dutch /v/ than to the Dutch /ʋ/.
'Correction' is the name of a sentence with contrastive focus' the phonological/phonetic realization of which is a single contrastive pitch accent. These sentences predominantly appear in (fictional) dialogues. The first speaker uses grammatical entities against which the next speaker protests with a sentence nearly identical except that it contains a prosodically marked corrective element. This paper makes contrastive focus visible by means of 'KF' (contrastive focus).
The present study, based on a typological survey of ca. 70 languages, offers a systematization of consonantal insertions by classifying them into three main types: grammatical, phonetic, and prosodic insertions. The three epenthesis types essentially differ from each other in terms of preferred sounds, domains of application, the role of segmental context, their occurrence cross-linguistically, the extent of variation and phonetic explication.
The present investigation is significantly different from other analyses of consonantal epentheses in the sense that it neither invokes markedness nor diachronic state of the processes under discussion. Instead, it considers the different nature of the epenthetic segments by referring to the representational levels and/or domains which are relevant for their appearance.
(Non)retroflexivity of slavic affricates and its motivation : Evidence from polish and czech <č>
(2005)
The goal of this paper is two-fold. First, it revises the common assumption that the affricate <č> denotes /t͡ʃ/ for all Slavic languages. On the basis of experimental results it is shown that Slavic <č> stands for two sounds: /t͡ʃ/ as e.g. in Czech and /ʈʂ/ as in Polish.
The second goal of the paper is to show that this difference is not accidental but it is motivated by perceptual relations among sibilants. In Polish, /t͡ʃ/ changed to /ʈʂ/ thus lowering its sibilant tonality and creating a better perceptual distance to /tɕ/, whereas in Czech /t͡ʃ/ did not turn to /ʈʂ/, as the former displayed sufficient perceptual distance to the only affricate present in the inventory, namely, the alveolar /t͡s/. Finally, an analysis of Czech and Polish affricate inventories is offered.
The distribution of trimoraic syllables in German and English as evidence for the phonological word
(2000)
In the present article I discuss the distribution of trimoraic syllables in German and English. The reason I have chosen to analyze these two languages together is that the data in both languages are strikingly similar. However, although the basic generalization in (1) holds for both German and English, we will see below that trimoraic syllabIes do not have an identical distribution in both languages.
In the present study I make the following theoretical claims. First, I argue that the three environments in (1) have a property in common: they all describe the right edge of a phonological word (or prosodic word; henceforth pword). From a formal point of view, I argue that a constraint I dub the THIRD MORA RESTRICTION (henceforth TMR), which ensures that trimoraic syllables surface at the end of a pword, is active in German and English. According to my proposal trimoraic syllables cannot occur morpheme-internally because monomorphemic grammatical words like garden are parsed as single pwords. Second, I argue that the TMR refers crucially to moraic structure. In particular, underlined strings like the ones in (1) will be shown to be trimoraic; neither skeletal positions nor the subsyllabic constituent rhyme are necessary. Third, the TMR will be shown to be violated in certain (predictable) pword-internal cases, as in Monde and chamber; I account for such facts in an OptimalityTheoretic analysis (henceforth OT; Prince & Smolensky 1993) by ranking various markedness constraints among themselves or by ranking them ahead of the TMR. Fourth, I hold that the TMR describes a concrete level of grammar, which I refer to below as the 'surface' representation. In this respect, my treatment differs significantly from the one proposed for English by Borowsky (1986, 1989), in which the English facts are captured in a Lexical Phonology model by ordering the relevant constraint at level 1 in the lexicon.
Identity effects in phonology are deviations from regular phonological form (i.e. canonical patterns) which are due to the relatedness between words. More specifically, identity effects are those deviations which have the function to enhance similarity in the surface phonological form of morphologically related words. In rule-based generative phonology the effects in question are described by means of the cycle. For example, the stress on the second syllable in cond[ɛ]nsation as opposed to the stresslessness of the second syllable in comp[ǝ]nsation is described by applying the stress rules initially to the sterns thereby yielding condénse and cómpensàte. Subsequently the stress rules are reapplied to the affixed words with the initial stress assignment (i.e. stress on the second syllable in condense, but not in compensate) leaving its mark in the output form (cf. Chomsky and Halle 1968). A second example are words like lie[p]los 'unloving' in German, which shows the effects of neutralization in coda position (i.e. only voiceless obstruents may occur in coda position) even though the obstruent should 'regularly' be syllabified in head position (i.e. bl is a wellformed syllable head in German). Here the stern is syllabified on an initial cycle, obstruent devoicing applies (i.e. lie[p]) and this structure is left intact when affixation applies (i.e. lie[p ]Ios ) (cf. Hall 1992). As a result the stern of lie[p]los is identical to the base lie[p].
I argue in this study that consonantal strength shifts can be explained through positional bans on features, expressed over positions marked as weak at a given level of prosodic structure, usually the metrical foo!. This approach might be characterized as "templatic" in the sense it seeks to explain positional restrictions and distributional patterns relative to independently motivated, fixed prosodic elements. In this sense, it follows Dresher & Lahiri's (1991) idea of metrical coherence in phonological systems, namely, "[T]hat grammars adhere to syllabic templates and metrical patterns of limited types, and that these patterns persist across derivations and are available to a number of different processes ... " (251). [...] The study is structured as follows: section 1 presents a typology of distributional asymmetries based on data from unrelated languages, demonstrating that the stress foot of each of these languages determines the contexts of neutralization and weakening of stops. Section 2 elaborates the notion of a template, exploring some of its formal properties, while section 3 presents templatic analyses of data from English and German. Section 4 explores the properties of weak positions, especially weak onsets, in more detail, including discussion of templates in phonological acquisition. Section 5 summarizes and concludes the study.
The aim of this paper is to show what role prosodic constituents, especially the foot and the prosodic word play in Polish phonology. The focus is placed on their function in the representation of extrasyllabic consonants in word-initial, word-medial, and word-final positions.
The paper is organized as follows. In the first section, I show that the foot and the prosodic word are well-motivated prosodic constituents in Polish prosody. In the second part, I discuss consonant clusters in Polish focussing on segments that are not parsed into a syllable due to violations of the Sonority Sequencing Generalisation, i.e. extrasyllabic segments. Finally, I analyze possible representations of the extrasyllabic consonants and conclude that both the foot and the prosodic word play a crucial role in terms of licensing. My proposal differs from the ones by Rubach and Booij (1990b) and Rubach (1997) in that I argue that the word-initial sonorants traditionally called extrasyllabic are licenced by the foot and not by the prosodic word (cf. Rubach and Booij (1990b)) or the syllable (cf. Rubach (1997)). For my analysis I adopt the framework of Optimality Theory, cf. McCarthy and Prince (1993), Prince and Smolensky (1993), in which derivational levels are abandoned and only surface representations are evaluated by means of universal constraints.
In this work, I examine a set of languages which appear to require resyllabification postlexically; in less derivational terms, a word's syllabification in isolation differs from its syllabification in a phrase-internal context. Although many people, myself included, have been looking at such cases in isolation over the years, I bring together several examples here to see what features they share and how an Optimality Theory analysis improves upon rule-based derivational approaches.
The purpose of this paper is to provide a unified (i.e. independent of lexical categories) account of Persian stress. I show that by differentiating word- and phrase-level stress rules, one can account for the superficial differences exemplified in (1) above and many of the stipulations suggested by previous scholars. The paper is organized as follows. In section 1, I look at nouns and adjectives and propose a rule that would account for their stress pattern. In section 2, I extend the stress rule to verbs and show the problem this category poses to our generalization. The main proposal of this paper is discussed in section 3. I introduce the phrasal stress rule in Persian and show that by differentiating word-level and phrase-level stress rules, one can come to a unified account of Persian stress. Section 4 deals with some problematic eases for the proposed generalization and discusses some tentative solutions and their theoretical consequences. Section 5 concludes the paper.
While the perilinguistic child is endowed with predispositions for the categorical perception of phonetic features, their adaptation to the native language results from a long evolution from the end of the first year of age up to the adolescence. This evolution entails both a better discrimination between phonological categories, a concomitant reduction of the discrimination between within-category variants, and a higher precision of perceptual boundaries between categories. The first objective of the present study was to assess the relative importance of these modifications by comparing the perceptual performances of a group of 11 children, aged from 8 to 11 years, with those of their mothers. Our second objective was to explore the functional implications of categorical perception by comparing the performances of a group of 8 deaf children, equipped with a cochlear implant, with normal-hearing chronological age controls. The results showed that the categorical boundary was slightly more precise and that categorical perception was consistently larger in adults vs. normal-hearing children. Those among the deaf children who were able to discriminate minimal distinctions between syllables displayed categorical perception performances equivalent to those of normal-hearing controls. In conclusion, the late effect of age on the categorical perception of speech seems to be anchored in a fairly mature phonological system, as evidenced the fairly high precision of categorical boundaries in pre-adolescents. These late developments have functional implications for speech perception in difficult conditions as suggested by the relationship between categorical perception and speech intelligibility in cochlear implant children.
This paper describes the processing of MRI and CT images needed for developing a 3D linear articulatory model of velum. The 3D surface that defines each organ constitutive of the vocal and nasal tracts is extracted from MRI and CT images recorded on a subject uttering a corpus of artificially sustained French vowels and consonants. First, the 2D contours of the organs have been manually extracted from the corresponding images, expanded into 3D contours, and aligned in a common 3D coordinate system. Then, for each organ, a generic mesh has been chosen and fitted by elastic deformation to each of the 46 3D shapes of the corpus. This has finally resulted in a set of organ surfaces sampled with the same number of 3D vertices for each articulation, which is appropriate for Principal Component Analysis or linear decomposition. The analysis of these data has uncovered two main uncorrelated articulatory degrees of freedom for the velum's movement. The associated parameters are used to control the model. We have in particular investigated the question of a possible correlation between jaw / tongue and velum's movement and have not find more correlation than the one found in the corpus.
This paper contributes to the understanding of vocal folds oscillation during phonation. In order to test theoretical models of phonation, a new experimental set-up using a deformable vocal folds replica is presented. The replica is shown to be able to produce self sustained oscillations under controlled experimental conditions. Therefore different parameters, such as those related to elasticity, to acoustical coupling or to the subglottal pressure can be quantitatively studied. In this work we focused on the oscillation fundamental frequency and the upstream pressure in order to start (on-set threshold) either end (off-set threshold) oscillations in presence of a downstream acoustical resonator. As an example, it is shown how this data can be used in order to test the theoretical predictions of a simple one-mass model.
A visual articulatory model and its application to therapy
of speech disorders : a pilot study
(2005)
A visual articulatory model based on static MRI-data of isolated sounds and its application in therapy of speech disorders is described. The model is capable of generating video sequences of articulatory movements or still images of articulatory target positions within the midsagittal plane. On the basis of this model (1) a visual stimulation technique for the therapy of patients suffering from speech disorders and (2) a rating test for visual recognition of speech movements was developed. Results indicate that patients produce recognition rates above level of chance already without any training and that patients are capable of increasing their recognition rate over the time course of therapy significantly.
In order to investigate the articulatory processes of the hasty and mumbled speech of clutterers, the kinematic variability was analysed by means of electromagnetic midsagittal articulography (EMMA). In contrast to stutterers, clutterers improve their intelligibility by concentrating on their speech task. Variability is an important criterion in comparable studies of stuttering and is discussed in terms of the stability of the speech motor system. The aim of the current study was to analyse the spatial and temporal variability in the speech of three clutterers and three control speakers. All speakers were native speakers of German. The speech material consisted of repetitive CV-syllables and foreign words, because clutterers have the most severe problems with long words which have a complex syllable structure. The results showed a higher quotient of variation for clutterers in the foreign word production. For the syllable repetition task, no significant differences between clutterers and controls were found. The extremely large and variable displacements were interpreted as a strategy that helps clutterers to improve the intelligibility of their speech.
This paper summarizes our research efforts in functional modelling of the relationship between the acoustic properties of vowels and perceived vowel quality. Our model is trained on 164 short steady-state stimuli. We measured F1, F2, and additionally F0 since the effect of F0 on perceptual vowel height is evident. 40 phonetically skilled subjects judged vowel quality using the Cardinal Vowel diagram. The main focus is on refining the model and describing its transformation properties between the F1/F2 formant chart and the Cardinal Vowel diagram. An evaluation of the model based on 48 additional vowels showed the generalizability of the model and confirmed that it predicts perceived vowel quality with sufficient accuracy.
We measure face deformations during speech production using a motion capture system, which provides 3D coordinate data of about 60 markers glued on the speaker's face. An arbitrary orthogonal factor analysis followed by a principal component analysis (together called a guided PCA) of the data has showed that the first 6 factors explain about 90% of the variance, for each of our 3 speakers. The 6 derived factors, therefore, allow us to efficiently analyze or to reconstruct with a reasonable accuracy the observed face deformations. Since these factors can be interpreted in articulatory terms, they can reveal underlying articulatory organizations. The comparison of lip gestures in terms of data derived factors suggests that these speakers differently maneuver the lips to achieve contrast between /s/ and /R/. Such inter-speaker variability can occur because the acoustic contrast of these fricatives is shaped not only by the lip tube but also by cavities inside the mouth such as the sublingual cavity. In other words, these tube and cavity can acoustically compensate each other to produce their required acoustic properties.
The contribution of von Kempelen's "Mechanism of Speech" to the 'phonetic sciences' will be analyzed with respect to his theoretical reasoning on speech and speech production on the one hand and on the other in connection with his practical insights during his struggle in constructing a speaking machine. Whereas in his theoretical considerations von Kempelen's view is focussed on the natural functioning of the speech organs – cf. his membraneous glottis model – in constructing his speaking machine he clearly orientates himself towards the auditory result – cf. the bag pipe model for the sound generator used for the speaking machine instead. Concerning vowel production his theoretical description remains questionable, but his practical insight that vowels and speech sounds in general are only perceived correctly in connection with their surrounding sounds – i.e. the discovery of coarticulation – is clearly a milestone in the development of the phonetic sciences: He therefore dispenses with the Kratzenstein tubes, although they might have been based on more thorough acoustic modelling.
Finally, von Kempelen's model of speech production will be discussed in relation to the discussion of the acoustic nature of vowels afterwards [Willis and Wheatstone as well as von Helmholtz and Hermann in the 19th century and Stumpf, Chiba & Kajiyama as well as Fant and Ungeheuer in the 20th century].
In order to understand the functional morphology of the human voice producing system, we are in need of data on the vocal tract anatomy of other mammalian species. The larynges and vocal tracts of four species of Artiodactyla were investigated in combination with acoustic analyses of their respective calls. Different evolutionary specializations of laryngeal characters may lead to similar effects on sound production. In the investigated species, such specializations are: the elongation and mass increase of the vocal folds, the volume increase of the laryngeal vestibulum by an enlarged thyroid cartilage and the formation of laryngeal ventricles. Both the elongation of the vocal folds and the increase of the oscillating masses lower the fundamental frequency. The influence of an increased volume of the laryngeal vestibulum on sound production remains unclear. The anatomical and acoustic results are presented together with considerations about the habitats and the mating systems of the respective species.
Four speakers repeated 8 times 15 sentences containing 'pVp' syllables (V being /a/, /i/ and /u/). The 'pVp' syllables were located in final, penultimate and antepenultimate position relatively to the Intonational Phrase (IP) boundary. They were embedded in lexical words of 1-3 syllables and were either word-initial or word-final. Results show that the closer the vowel in word-final position is to the IP boundary, the longer the duration and the higher the fundamental frequency of the vowel; it is also characterised by larger lip opening gestures. The potential reduction or coarticulation of vowels in wordinitial position compared to their counterparts in word-final position is discussed.
This paper examines how questions, both Wh-questions and yes-no questions, are phrased in Chimwiini, a Bantu language spoken in southern Somalia. Questions do not require any special phrasing principles, but Wh-questions do provide much evidence in support of the principle Align-Foc R, which requires that focused or emphasized words/constituents be located at the end of a phonological phrase. Question words and enclitics are always focused and thus appear at the end of a phrase. Although questions do not require any new phrasing principles, they do display complex accentual (tonal) behavior. This paper attempts to provide an account of these accentual phenomena.
This paper presents a preliminary survey of the positions and prosodies associated with Wh-questions in two Bantu languages spoken in Malawi. The paper shows that the two languages are similar in requiring focused subjects to be clefted. Both also require 'which' questions and 'because of what' questions to be clefted or fronted. However, for other non-subjects Tumbuka rather uniformly imposes an IAV (immediately after the verb) requirement, while Chewa does not. In both languages, we found a strong tendency for there to be a prosodic phrase break following the Wh-word. In Tumbuka, this break follows from the general phrasing algorithm of the language, while in Chewa, I propose that the break can be best understood as following from the inherent prominence of Wh-words.
This paper sketches the morphosyntactic and prosodic properties of questions in Fipa, discussing three varieties: Milanzi, Nkansi and Kwa. The general word order and morphological patterns relevant to question structures are outlined and different types of wh-question constructions are described and tentatively linked to the prosodic features of Fipa questions.
The purpose of this paper is to show how WH questions interact with the complex tonal phenomena which we summarized and illustrated in Hyman & Katamba (2010). As will be seen, WH questions have interesting syntactic and tonal properties of their own, including a WH-specific intonation. The paper is structured as follows: After an introduction in §1, we successively discuss non-subject WH questions (§2), subject WH questions (§3), and clefted WH questions (§4). We then briefly present a tense which is specifically limited to WH questions (§5), and conclude with a brief summary in §6.
This questionnaire is intended as an aid to eliciting different question types, including yes/no questions, alternative questions, and wh-questions on a range of constituents. We have taken care to include examples that allow one to test for common Bantu phenomena, such as a subject/non-subject asymmetry in wh-questions and an obligatory immediately after the verb (IAV) position for questioning verb complements. The questionnaire is intended as a guide, only, as every language will have its own set of possibilities and complications. At the end of the questionnaire is a checklist. While we had Bantu languages in mind in devising the questionnaire, we hope it will also be useful to linguists with an interest question constructions in other languages.
This paper tests three current theories of the phonology-syntax interface – Truckenbrodt (1995), Pak (2008) and Cheng & Downing (2007, 2009) – on the prosody of relative clauses in Chewa. Relative clauses, especially restrictive relative clauses, provide an ideal data set for comparing these theories, as they each make distinct predictions about the optimal phrasing. We show that the asymmetrical phase-edge based approach developed to account for similar Zulu prosodic phrasing by Cheng & Downing also best accounts for the Chewa data.
In Nłeʔkepmxcin, consonant-heavy inventories, lengthy obstruent clusters and widespread glottalization can make potential F0 cues to prosodic phrase boundaries (e.g. boundary tones or declination reset) difficult to observe phonetically. In this paper, I explore a test that exploits one behaviour of phrasefinal consonant clusters to test for prosodic phrasing in Nłeʔkepmxcin clauses. Final /t/ of the 1pl marker kt is aspirated when phrase-final, but not phraseinternally. Use of this test suggests that Thompson Salish speakers parse verbs, arguments and adjuncts into separate phonological phrases. However, complex verbal predicates and complex noun phrases are parsed as single phonological phrases. Implications are discussed, especially in regards to findings that (absence of) pitch accent is not employed to signal the informational categories of Focus and Givenness, even though Nłeʔkepmxcin is a stress language.
The aim of this paper is to try to explain how the Tooro system, which phonologically lacks tone, has come into being, by examining comparatively the tone system of each language itself and also by closely looking at the differences which exist among the Haya, Ankole and Nyoro systems (Kiga data insufficient) in order to look for phonetic reasons of the tone changes.
"The documentation of... descriptive generalizations is sometimes clearer and more accessible when expressed in terms of a detailed formal reconstruction, but only in the rare and happy case that the formalism fits the data so well that the resulting account is clearer and easier to understand than the list of categories of facts that it encodes.... [If not], subsequent scholars must often struggle to decode a description in an out-of-date formal framework so as to work back to... the facts.... which they can re-formalize in a new way. Having experienced this struggle often ourselves, we have decided to accommodate our successors by providing them directly with a plainer account." (Akinlabi & Liberman 2000:24)
Articulatory token-to-token variability not only depends on linguistic aspects like the phoneme inventory of a given language but also on speaker specific morphological and motor constraints. As has been noted previously (Perkell (1997), Mooshammer et al. (2004)), speakers with coronally high "domeshaped" palates exhibit more articulatory variability than speakers with coronally low "flat" palates. One explanation for that is based on perception oriented control by the speaker. The influence of articulatory variation on the cross sectional area and consequently on the acoustics should be greater for flat palates than for domeshaped ones. This should force speakers with flat palates to place their tongue very precisely whereas speakers with domeshaped palates might tolerate a greater variability. A second explanation could be a greater amount of lateral linguo-palatal contact for flat palates holding the tongue in position. In this study both hypotheses were tested.
In order to investigate the influence of the palate shape on the variability of the acoustic output a modelling study was carried out. Parallely, an EPG experiment was conducted in order to investigate the relationship between palate shape, articulatory variability and linguo-palatal contact.
Results from the modelling study suggest that the acoustic variability resulting from a certain amount of articulatory variability is higher for flat palates than for domeshaped ones. Results from the EPG experiment with 20 speakers show that (1.) speakers with a flat palate exhibit a very low articulatory variability whereas speakers with a domeshaped palate vary, (2.) there is less articulatory variability if there is lots of linguo-palatal contact and (3.) there is no relationship between the amount of lateral linguo-palatal contact and palate shape. The results suggest that there is a relationship between token-to-token variability and palate shape, however, it is not that the two parameters correlate, but that speakers with a flat palate always have a low variability because of constraints of the variability range of the acoustic output whereas speakers with a domeshaped palate may choose the degree of variability. Since linguo-palatal contact and variability correlate it is assumed that linguo-palatal contact is a means for reducing the articulatory variability.
Mechanisms of contrasting korean velar stops : A catalogue of acoustic and articulatory parameters
(2003)
The Korean stop system exhibits a three-way distinction in velar stops among /g/, /k'/ and /kh/. If the differentiation is regarded as being based on voicing, such a system is rather unusual because even a two-way distinction between a voiced and a voicless unaspirated velar stop gets easily lost in the languages of the world especially in the case of velar stops. One possibility for maintainig this distinction is that supralaryngeal characteristics like articulators' velocity, duration of surrounding vowels or stop closure duration are involved. The aim of the present study is to set up a catalogue of parameters which are involved in the distinction of Korean velar stops in intervocalic position.
Two Korean speakers have been recorded via Electromagnetic Articulography. The word material consisted of VCV-sequences where V is one of the three vowels /a/, /i/ or /u/ and C one of the Korean velars /g/, /k'/ or /kh/. Articulatory and acoustic signals have been analysed It turned out that the distinction is only partly built on laryngeal parameters and that supralaryngeal characteristics differ for the three stops. Another result is that the voicing contrast is not a matter of one parameter, but there is always a set of parameters involved. Furthermore, speakers seem to have a certain freedom in the choice of these parameters.