Speaking rate and language-specific voice onset time effects on burst amplitude: Cross-linguistic observations and implications for sound change

2021 ◽  
Vol 150 (4) ◽  
pp. A69-A69
Author(s):  
Chandan Narayan
Keyword(s):  
Voice Onset Time ◽  
Onset Time ◽  
Sound Change ◽  
Speaking Rate ◽  
Time Effects ◽  
Burst Amplitude

VOT merger in Heritage Korean in Toronto

2016 ◽  
Vol 28 (2) ◽  
pp. 249-272 ◽  
Author(s):  
Yoonjung Kang ◽  
Naomi Nagy
Keyword(s):  
Fundamental Frequency ◽  
Sex Difference ◽  
Voice Onset Time ◽  
Onset Time ◽  
Sound Change ◽  
Heritage Speakers ◽  
Bilingual Speakers ◽  
Korean Speakers ◽  
Internal Variation

AbstractKorean has a typologically unusual three-way laryngeal contrast in voiceless stops among aspirated, lenis, and fortis stops. Seoul Korean is undergoing a female-led sound change in which aspirated stops and lenis stops are merging in voice onset time (VOT) and are better distinguished by the F0 (fundamental frequency) of the following vowel than by their VOT, in younger speakers' speech. This paper compares the VOT pattern of Homeland (Seoul) and Heritage (Toronto) Korean speakers and finds that the same change is in progress in both. However, in the heritage variety, younger speakers do not advance the change, unlike their Seoul counterparts. Rather they have leveled off or are perhaps reversing the change, and there is very little sex difference among the younger heritage speakers' patterns. We consider possible accounts of the differences between the Seoul and Toronto patterns, building our understanding of how language-internal variation operates in bilingual speakers, a topic that has received relatively less attention in the variationist literature.

Speech Rate Mediated Vowel and Stop Voicing Distinctiveness in Parkinson's Disease

2021 ◽  
pp. 1-28
Author(s):  
Thea Knowles ◽  
Scott G. Adams ◽  
Mandar Jog
Keyword(s):  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
Deep Brain Stimulation ◽  
Brain Stimulation ◽  
Voice Onset Time ◽  
Speech Rate ◽  
Onset Time ◽  
Speaking Rate ◽  
Wide Range ◽  
Deep Brain

Purpose The purpose of this study was to quantify changes in acoustic distinctiveness in two groups of talkers with Parkinson's disease as they modify across a wide range of speaking rates. Method People with Parkinson's disease with and without deep brain stimulation and older healthy controls read 24 carrier phrases at different speech rates. Target nonsense words in the carrier phrases were designed to elicit stop consonants and corner vowels. Participants spoke at seven self-selected speech rates from very slow to very fast, elicited via magnitude production. Speech rate was measured in absolute words per minute and as a proportion of each talker's habitual rate. Measures of segmental distinctiveness included a temporal consonant measure, namely, voice onset time, and a spectral vowel measure, namely, vowel articulation index. Results All talkers successfully modified their rate of speech from slow to fast. Talkers with Parkinson's disease and deep brain stimulation demonstrated greater baseline speech impairment and produced smaller proportional changes at the fast end of the continuum. Increasingly slower speaking rates were associated with increased temporal contrasts (voice onset time) but not spectral contrasts (vowel articulation). Faster speech was associated with decreased contrasts in both domains. Talkers with deep brain stimulation demonstrated more aberrant productions across all speaking rates. Conclusions Findings suggest that temporal and spectral segmental distinctiveness are asymmetrically affected by speaking rate modifications in Parkinson's disease. Talkers with deep brain stimulation warrant further investigation with regard to speech changes they make as they adjust their speaking rate.

Effects of Sound Change on the Weighting of Acoustic Cues to the Three-Way Laryngeal Stop Contrast in Korean: Diachronic and Dialectal Comparisons

2018 ◽  
Vol 62 (3) ◽  
pp. 509-530 ◽  
Author(s):  
Hyunjung Lee ◽  
Allard Jongman
Keyword(s):  
Fundamental Frequency ◽  
Voice Onset Time ◽  
Onset Time ◽  
Sound Change ◽  
Acoustic Cues ◽  
Dialectal Variation ◽  
Cue Weighting ◽  
Age Variation ◽  
Korean Stops

Both segmental and suprasegmental properties of the South Kyungsang dialect of Korean have changed under the influence of standard Seoul Korean. This study examines how such sound change affects acoustic cues to the three-way laryngeal contrast among Korean stops across Kyungsang generations through a comparison with Seoul Korean. Thirty-nine female Korean speakers differing in dialect (Kyungsang, Seoul) and age (older, younger) produced words varying in initial stops and lexical accent patterns, for which voice onset time and fundamental frequency (F0) at vowel onset were measured. This study first confirms previous findings regarding age and dialectal variation in distinguishing the three Korean stops. In addition, we report age variation in the use of voice onset time and F0 for the stops in Kyungsang Korean, with younger speakers using F0 more than older speakers as a cue to the stop distinction. This age variation is accounted for by the reduced lexical tonal properties of Kyungsang Korean and the increased influence of Seoul Korean. A comparison of the specific cue weighting across speaker groups also reveals that younger Kyungsang speakers pattern with Seoul speakers who arguably follow the enhancing F0 role of the innovative younger Seoul speakers. The shared cue weighting pattern across generations and dialects suggests that each speaker group changes the acoustic cue weighting in a similar direction.

Effects of speaking rate on voice-onset time in Thai, French, and English

1997 ◽  
Vol 25 (2) ◽  
pp. 143-168 ◽  
Author(s):  
R.H. Kessinger ◽  
S.E. Blumstein
Keyword(s):  
Voice Onset Time ◽  
Onset Time ◽  
Speaking Rate ◽  
French And English

Rate-dependent Perception of Aspiration and Pre-aspiration in Icelandic

1996 ◽  
Vol 49 (3) ◽  
pp. 745-764 ◽  
Author(s):  
Jörgen Pind
Keyword(s):  
Voice Onset Time ◽  
Onset Time ◽  
Speaking Rate ◽  
Rate Dependent ◽  
The Face ◽  
Speech Cues ◽  
Context Dependent ◽  
Offset Time ◽  
Speech Segments ◽  
Over Time

Speech segments are highly context-dependent and acoustically variable. One factor that contributes heavily to the variability of speech is speaking rate. Some speech cues are temporal in nature—that is, the distinctions that they signify are defined over time. How can temporal speech cues keep their distinctiveness in the face of extrinsic transformations, such as those wrought by different speaking rates? This issue is explored with respect to the perception, in Icelandic, of Voice Onset Time as a cue for word-initial stop voicing, wordinitial aspiration as a cue for [h], and Voice Offset Time as a cue for pre-aspiration. All the speech cues show rate-dependent perception though to different degrees, with Voice Offset Time being most sensitive to rate changes and Voice Onset Time least sensitive. The differences in the behaviour of these speech cues are related to their different positions in the syllable.

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