scholarly journals Effects of Surprisal and Entropy on Vowel Duration in Japanese

2017 ◽  
Vol 62 (1) ◽  
pp. 80-114 ◽  
Author(s):  
Jason A. Shaw ◽  
Shigeto Kawahara
Keyword(s):  
Shannon Entropy ◽  
Vowel Duration ◽  
Vowel Quality ◽  
Vowel Length ◽  
European Languages ◽  
Short Vowels ◽  
Word Duration ◽  
Communicative Efficiency ◽  
Linguistic Units ◽  
Positive Effect

Research on English and other languages has shown that syllables and words that contain more information tend to be produced with longer duration. This research is evolving into a general thesis that speakers articulate linguistic units with more information more robustly. While this hypothesis seems plausible from the perspective of communicative efficiency, previous support for it has come mainly from English and some other Indo-European languages. Moreover, most previous studies focus on global effects, such as the interaction of word duration and sentential/semantic predictability. The current study is focused at the level of phonotactics, exploring the effects of local predictability on vowel duration in Japanese, using the Corpus of Spontaneous Japanese. To examine gradient consonant-vowel phonotactics within a consonant–vowel-mora, consonant-conditioned Surprisal and Shannon Entropy were calculated, and their effects on vowel duration were examined, together with other linguistic factors that are known from previous research to affect vowel duration. Results show significant effects of both Surprisal and Entropy, as well as notable interactions with vowel length and vowel quality. The effect of Entropy is stronger on peripheral vowels than on central vowels. Surprisal has a stronger positive effect on short vowels than on long vowels. We interpret the main patterns and the interactions by conceptualizing Surprisal as an index of motor fluency and Entropy as an index of competition in vowel selection.

scholarly journals Shared Vowels in English Loanwords in Arabic: Variation in Similarity-Based Adaptation

2022 ◽  
Vol 22 (1) ◽  
Keyword(s):  
Acoustic Analysis ◽  
Vowel Duration ◽  
Vowel Sound ◽  
Vowel Quality ◽  
Vowel Length ◽  
Arabic Speakers ◽  
Vowel Systems ◽  
Saudi Arabic ◽  
Vowel Height

This paper investigates vowel adaptation in English-based loanwords by a group of Saudi Arabic speakers, concentrating exclusively on shared vowels between the two languages. It examines 5 long vowels shared by the two vowel systems in terms of vowel quality and vowel duration in loanword productions by 22 participants and checks them against the properties of the same vowels in native words. To this end, the study performs an acoustic analysis of 660 tokens (loan and native vowel sounds) through Praat to measure the first two formants (F1: vowel height and F2: vowel advancement) of each vowel sound at two temporal points of time (T1: the vowel onset and T2: the peak of the vowel) as well as a durational analysis to examine vowel length. It reports that measurements of the first two formants of vowels in native words appear to be stable during the two temporal points while values of the same vowel sounds occurring in loanwords are fluctuating from T1 to T2 and that durational differences exist between loanword vowels in comparison with vowels of native words in such a way that vowels in native words are longer in duration than the same vowels appearing in loanwords.

scholarly journals Ternary vowel length in Shilluk

Phonology ◽  
2019 ◽  
Vol 36 (1) ◽  
pp. 91-125
Author(s):  
Bert Remijsen ◽  
Otto Gwado Ayoker ◽  
Signe Jørgensen
Keyword(s):  
Fundamental Frequency ◽  
The Other ◽  
Supporting Evidence ◽  
Vowel Duration ◽  
Vowel Quality ◽  
Vowel Length ◽  
Mean Values ◽  
Acoustic Study ◽  
The Mean

Ternary or three-level vowel length is typologically rare, and supporting evidence is limited. This paper presents the results of an investigation into the hypothesised case of this configuration in Shilluk. We first describe the role of vowel length in Shilluk phonology and morphology, and then report on an acoustic study in which minimal sets for vowel length (short, long, overlong) are measured for vowel duration, coda duration, vowel quality and fundamental frequency. Short, long and overlong vowels differ significantly and substantially in terms of vowel duration: 96% of the items can be classified successfully for vowel length on the basis of this measurement alone. Of the other measurements, only vowel quality is significant, and this effect is considerably smaller. The mean values for vowel duration – 68, 111 and 150 ms for short, long and overlong vowels respectively – are similar to those reported for ternary vowel length in Dinka.

scholarly journals Syllable weight, vowel length and focus in Lebanese Arabic

2021 ◽  
Author(s):  
Niamh Kelly
Keyword(s):  
Syllable Structure ◽  
Short Vowel ◽  
Vowel Duration ◽  
Consonant Cluster ◽  
Vowel Length ◽  
Syllable Weight ◽  
Contrastive Focus ◽  
Short Vowels ◽  
Levantine Arabic ◽  
Lebanese Arabic

Research on a variety of languages has shown that vowel duration is influenced by phonological vowel length as well as syllable structure (e.g., Maddieson, 1997). Further, the phonological concept of a mora has been shown to relate to phonetic measurements of duration (Cohn, 2003; Hubbard, 1993; Port, Dalby, & O'Dell, 1987). In Levantine Arabic, non-final closed syllables that contain a long vowel have been described as partaking in mora-sharing (Broselow, Chen, & Huffman, 1997; Khattab & Al-Tamimi, 2014). The current investigation examines the effect of vowel length and syllable structure on vowel duration, as well as how this interacts with durational effects of prosodic focus. Disyllabic words with initial, stressed syllables that were either open or closed and contained either a long or a short vowel wereexamined when non-focused and in contrastive focus. Contrastive focus was associated with longer words and syllables but not vowels. Short vowels were shorter when in a syllable closed by a singleton but not by a geminate consonant, while long vowels were not shortened before coda singletons. An analysis is proposed whereby long vowels followed by an intervocalic consonant cluster are parsed as open syllables, with the first consonant forming a semisyllable (Kiparsky, 2003), while long vowels followed by geminate consonants partake in mora-sharing (Broselow, Huffman, Chen, & Hsieh, 1995). The results also indicate compensatory shortening for short vowels followed by a singleton coda.

Temporal Characteristics of Speech in Simultaneous Communication

1995 ◽  
Vol 38 (5) ◽  
pp. 1014-1024 ◽  
Author(s):  
Robert L. Whitehead ◽  
Nicholas Schiavetti ◽  
Brenda H. Whitehead ◽  
Dale Evan Metz
Keyword(s):  
Pause Duration ◽  
Vowel Duration ◽  
Vowel Perception ◽  
Temporal Characteristics ◽  
Spoken English ◽  
Temporal Features ◽  
Before And After ◽  
Word Duration ◽  
Rate Of Speech ◽  
Speech Condition

The purpose of this investigation was twofold: (a) to determine if there are changes in specific temporal characteristics of speech that occur during simultaneous communication, and (b) to determine if known temporal rules of spoken English are disrupted during simultaneous communication. Ten speakers uttered sentences consisting of a carrier phrase and experimental CVC words under conditions of: (a) speech, (b) speech combined with signed English, and (c) speech combined with signed English for every word except the CVC word that was fingerspelled. The temporal features investigated included: (a) sentence duration, (b) experimental CVC word duration, (c) vowel duration in experimental CVC words, (d) pause duration before and after experimental CVC words, and (e) consonantal effects on vowel duration. Results indicated that for all durational measures, the speech/sign/fingerspelling condition was longest, followed by the speech/sign condition, with the speech condition being shortest. It was also found that for all three speaking conditions, vowels were longer in duration when preceding voiced consonants than vowels preceding their voiceless cognates, and that a low vowel was longer in duration than a high vowel. These findings indicate that speakers consistently reduced their rate of speech when using simultaneous communication, but did not violate these specific temporal rules of English important for consonant and vowel perception.

The Perception of Cantonese Vowel Length Contrast by Mandarin Speakers

2019 ◽  
Vol 63 (3) ◽  
pp. 635-659
Author(s):  
Jingxin Luo ◽  
Vivian Guo Li ◽  
Peggy Pik Ki Mok
Keyword(s):  
Second Language ◽  
Discrimination Task ◽  
Early Stage ◽  
Vowel Quality ◽  
Speech Acquisition ◽  
Vowel Length ◽  
Third Language ◽  
Phonological Knowledge ◽  
Mandarin Speakers

The study investigates the perception of vowel length contrasts in Cantonese by native Mandarin speakers with varying degrees of experience in Cantonese: naïve listeners (no exposure), inexperienced learners (~1 year), and experienced learners (~5 years). While vowel length contrasts do not exist in Mandarin, they are, to some extent, exploited in English, the second language (L2) of all the participants. Using an AXB discrimination task, we investigate how native and L2 phonological knowledge affects the acquisition of vowel length contrasts in a third language (L3). The results revealed that all participant groups could discriminate three contrastive vowel pairs (/aː/–/ɐ/, /ɛː/–/e/, /ɔː/–/o/), but their performance was influenced by the degree of Cantonese exposure, particularly for learners in the early stage of acquisition. In addition to vowel quality differences, durational differences were proposed to explain the perceptual patterns. Furthermore, L2 English perception of the participants was found to modulate the perception of L3 Cantonese vowel length contrasts. Our findings demonstrate the bi-directional interaction between languages acquired at different stages, and provide concrete data to evaluate some speech acquisition models.

Zur Entstehung und Entwicklung des begriffes „Konzept“ in der kognitiven Semantik

2021 ◽  
pp. 251-259
Author(s):  
Nedas Jurgaitis ◽  
Keyword(s):  
Middle Ages ◽  
Cognitive Linguistics ◽  
Word Meaning ◽  
Cognitive Semantics ◽  
Subjective Perception ◽  
Scientific Discussion ◽  
European Languages ◽  
The One ◽  
Meta Analyses ◽  
Linguistic Units

The present article deals with the genesis of the notion “concept” in German cognitive semantics. The aim of the study is to present the origin and development of the notion “concept” from a diachronic perspective. The genesis of the notion “concept” in linguistics, particularly cognitive semantics, is an object of discussion. It reveals a connection between ancient ideas about word meaning and trends in modern linguistics. The roots of the notion can be traced back to ancient Greek philosophy – the concept debuts as a primal notion of mental experiences in Aristotle’s writings. However, the controversial translation of ancient works leaves room for scientific discussion regarding the prototype of the notion. In the Middle Ages, the word concept originated in European languages from Latin, later establishing itself in scientific discourse through the influence of Neo-Scholasticism, Frege’s conception of logic and the semiotic triangle, as well as the principle of the arbitrariness of linguistic signs. Finally, the notion concept gains importance in the transition from objective to the subjective perception of the meaning of linguistic units (the shift from structuralism to cognitivism) and becomes under the influence of cognitive psychology, the central term in cognitive linguistics in the 1970s and 1980s. The unconventional use of the notion in linguistic studies, on the one hand, makes meta-analyses of the semantics of certain concepts more difficult; on the other hand, it favours disciplinary and methodological diversity in today’s linguistic research.

Adaptation of Stuttering Frequency During Repeated Readings

1998 ◽  
Vol 41 (6) ◽  
pp. 1265-1281 ◽  
Author(s):  
Ludo Max ◽  
Anthony J. Caruso
Keyword(s):  
Motor Learning ◽  
Transition Rate ◽  
Speech Rate ◽  
The Other ◽  
Repeated Readings ◽  
Vowel Duration ◽  
Articulation Rate ◽  
Motor Tasks ◽  
Learning Hypothesis ◽  
Word Duration

This study is part of a series investigating the hypothesis that stuttering adaptation is a result of motor learning. Previous investigations indicate that nonspeech motor learning typically is associated with an increase in speed of performance. Previous investigations of stuttering, on the other hand, indicate that improvements in fluency during most fluency-enhancing conditions or after stuttering treatment tend to be associated with decreased speech rate, increased duration of specific acoustic segments, and decreased vowel duration variability. The present acoustic findings, obtained from 8 individuals who stutter, reveal that speech adjustments occurring during adaptation differ from those reported for other fluency-enhancing conditions or stuttering treatment. Instead, the observed changes are consistent with those occurring during skill improvements for nonspeech motor tasks and, thus, with a motor learning hypothesis of stuttering adaptation. During the last of 6 repeated readings, a statistically significant increase in articulation rate was observed, together with a decrease in word duration, vowel duration, and consonant-vowel (CV) transition extent. Other adjustments showing relatively consistent trends across individual subjects included decreased CV transition rate and duration, and increased variability of both CV transition extent and vowel duration.

Intonational Structure Influences Perception of Contrastive Vowel Length: The Case of Phrase-Final Lengthening in Tokyo Japanese

2020 ◽  
pp. 002383092097184
Author(s):  
Jeremy Steffman ◽  
Hironori Katsuda
Keyword(s):  
Target Word ◽  
Speech Signal ◽  
Choice Task ◽  
Prosodic Structure ◽  
Vowel Duration ◽  
Vowel Length ◽  
Target Sound ◽  
Tokyo Japanese ◽  
Forced Choice Task ◽  
Prosodic Boundary

Recent research has proposed that listeners use prosodic information to guide their processing of phonemic contrasts. Given that prosodic organization of the speech signal systematically modulates durational patterns (e.g., accentual lengthening and phrase-final (PF) lengthening), listeners’ perception of durational contrasts has been argued to be influenced by prosodic factors. For example, given that sounds are generally lengthened preceding a prosodic boundary, listeners may adjust their perception of durational cues accordingly, effectively compensating for prosodically-driven temporal patterns. In the present study we present two experiments designed to test the importance of pitch-based cues to prosodic structure for listeners’ perception of contrastive vowel length (CVL) in Tokyo Japanese along these lines. We tested if, when a target sound is cued as being PF, listeners compensatorily adjust categorization of vowel duration, in accordance with PF lengthening. Both experiments were a two-alternative forced choice task in which listeners categorized a vowel duration continuum as a phonemically short or long vowel. We manipulated only pitch surrounding the target sound in a carrier phrase to cue it as intonational phrase final, or accentual phrase medial. In Experiment 1 we tested perception of an accented target word, and in Experiment 2 we tested perception of an unaccented target word. In both experiments, we found that contextual changes in pitch influenced listeners’ perception of CVL, in accordance with their function as signaling intonational structure. Results therefore suggest that listeners use tonal information to compute prosodic structure and bring this to bear on their perception of durational contrasts in speech.

Spectrographic Analysis of Vowel and Word Duration in Apraxia of Speech

1983 ◽  
Vol 26 (2) ◽  
pp. 224-230 ◽  
Author(s):  
Michael Collins ◽  
John C. Rosenbek ◽  
Robert T. Wertz
Keyword(s):  
Linguistic Knowledge ◽  
Motor Programming ◽  
Vowel Duration ◽  
Spectrographic Analysis ◽  
Apraxia Of Speech ◽  
Vowel Reduction ◽  
Low Level ◽  
Word Duration

Most nomml speakers of English reduce the duration of the stem word vowel as words increase in length. Theoretically, this durational reduction reflects low-level linguistic knowledge. We posed two questions in this study: First, do speakers with apraxia of speech progressively reduce vowel durations as words increase in length, and, second, do these vowel and word durations differ significantly from normal productions? We asked 11 apraxia of speech patients and 11 normal speakers to repeat three sets of three words which progressively increased in length, and we analyzed these productions spectrographically. Our results revealed that both groups reduced vowel duration its words increased in length. Word and vowel duration for apraxia of speech patients, however, were often significantly longer than those for normal speakers. Our results suggest that vowel reduction is a robust phenomenon which resists impairment in apraxia of speech, despite often significant disturbances in motor programming.

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