Diphthongs: A case study of dynamic auditory processing

Bladon, Anthony

doi:10.1016/0167-6393(85)90042-1

Cited by 14 publications

(12 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This should not be a surprise since the diphthong formants cannot be described by only one value of frequency (Bladon, 1985 ). In both noise and reverberation, the diphthongs were often perceived as their initial monophthongs in agreement with the N•b•lek and Dagenais (1986) data for the male talker.…”

Section: Diphthong/monophthong Errors In Noise and Reverberationsupporting

confidence: 62%

See 1 more Smart Citation

Identification of vowels in quiet, noise, and reverberation: Relationships with age and hearing loss

Nábělek

1988

The Journal of the Acoustical Society of America

View full text Add to dashboard Cite

Vowel identification in quiet, noise, and reverberation was tested with 40 subjects who varied in age and hearing level. Stimuli were 15 English vowels spoken in a (b-t) context in a carrier sentence, which were degraded by reverberation or noise (a babble of 12 voices). Vowel identification scores were correlated with various measures of hearing loss and with age. The mean of four hearing levels at 0.5, 1, 2, and 4 kHz, termed HTL4, produced the highest correlation coefficients in all three listening conditions. The correlation with age was smaller than with HTL4 and significant only for the degraded vowels. Further analyses were performed for subjects assigned to four groups on the basis of the amount of hearing loss. In noise, performance of all four groups was significantly different, whereas, in both quiet and reverberation, only the group with the greatest hearing loss performed differently from the other groups. The relationship among hearing loss, age, and number and type of errors is discussed in light of acoustic cues available for vowel identification.

show abstract

Section: Diphthong/monophthong Errors In Noise and Reverberationsupporting

confidence: 62%

“…In reverberation, there was relatively more diphthong/monophthong (44.3%) than monophthong/monophthong (16.7%) errors. It appears that reverberation was more effective than noise in masking the rate 0f change which is an important perceptual cue for diphthong identification (Bladon, 1985).…”

Section: Errors For Monophthongs and Diphthongs In Both Noise And mentioning

confidence: 97%

Identification of vowels in quiet, noise, and reverberation: Relationships with age and hearing loss

Nábělek

1988

The Journal of the Acoustical Society of America

View full text Add to dashboard Cite

show abstract

“…Monophthong responses to diphthong stimuli were also reported by Pickett (1957) who tested vowel identification in the presence of background noise. Correct identification of diphthongs requires perception of temporal changes in the frequencies of formants (Gay, 1968;Bladon, 1985;Peeters, 1991 ). Thus it appears that when diphthong tokens are identified as monophthongs, the temporal changes in the formants are not perceived and when/o•/ and/ou/are confused, the temporal changes are misinterpreted.…”

Section: Introductionmentioning

confidence: 99%

“…These stimuli were called types 1 and 2, respectively. In natural productions, either type of transition may result in correct diphthong identification in undegraded listening conditions (Gay, 1968;Bladon, 1985) or correct statistically based classification (Gottfried et al, 1993). For each type of diphthong, a continuum was constructed in which the first end-point stimulus was a steadystate/o/, then the duration of the final segment containing F1 and F2 transitions was increased stepwise to a value which produced a clear/ox/.…”

Section: Introductionmentioning

confidence: 99%

Cues for perception of the diphthong /ɑi/ in either noise or reverberation. Part I. Duration of the transition

Nábělek

Czyżewski

Crowley

1994

The Journal of the Acoustical Society of America

View full text Add to dashboard Cite

Location of boundaries (the 50% response point) and slopes of identification functions were determined for synthesized /a-aI/ vowel continua. Within each continuum, the stimuli contained a steady-state segment followed by a transition in which the frequencies of formants changed in time. Here, F1 changed in a downward direction and F2 changed in an upward direction. Total duration of each stimulus was 200 ms. The duration of the transition was increased in steps from 0 to 140 ms. Two patterns of formant transition were used: (1) formants changing in the direction of, but not reaching, target frequencies (except in the end-point stimulus), and (2) formants reaching F1 and F2 targets. The data were collected with ten normal-hearing and ten hearing-impaired subjects. The boundaries and slopes were determined for four listening conditions: quiet, noise, short reverberation (0.8 s), and long reverberation (1.1 s). The location of boundaries depended upon: (1) pattern of formant transitions, (2) listening condition, and (3) status of subjects' hearing. Generally, longer transitions were needed for formants changing in the direction of, but not reaching, target frequencies, than for those reaching F1 and F2 targets. The required transition durations were similar in quiet and noise, but were longer in reverberation. The hearing-impaired subjects generally required longer transitions to reach the boundaries than normal-hearing subjects. The slopes of the identification functions were shallower in either noise or reverberation than in quiet and were shallower for hearing-impaired than for normal-hearing subjects. In reverberation, the slopes for formants reaching targets were shallower than the slopes for stimuli with formants changing in the direction of target frequencies. The relationships between these findings and identification errors for naturally produced tokens of the diphthong /aI/ are discussed.

show abstract

“…Table 2 summarized mean range and rate of F2 change for the diphthongs in Cangnan. 12 Previous studies show that F2 range and rate of change could characterize diphthongs when a language has a simple inventory of diphthongs ( [30], [31]), but would have problems when a language has a complex inventory of diphthongs ( [32], [33], [34]). [35] further points out that F2 range and rate of change could characterize diphthongs when falling diphthongs and rising diphthongs are separated; but it would have problems when falling and rising diphthongs are taken into account together.…”

Section: Dynamic Aspectsmentioning

confidence: 99%

Vowels and Diphthongs in Cangnan Southern Min Chinese Dialect

Hu¹,

Ge²

2016

Interspeech 2016

View full text Add to dashboard Cite

This paper gives an acoustic phonetic description of the vowels and diphthongs in Cangnan Southern Min Chinese dialect. Vowel formant data from 10 speakers (5 male and 5 female) show that the distribution of Cangnan monophthongs in the acoustic vowel space is of particular typological interest. Diphthong production is examined in terms of temporal organization, spectral property, and dynamic aspects. Results suggest that the production of falling diphthongs tends to be a single articulatory event with a dynamic spectral target, while the production of rising diphthongs and level diphthongs is a sequence of two spectral targets.

show abstract

Diphthongs: A case study of dynamic auditory processing

Cited by 14 publications

References 5 publications

Identification of vowels in quiet, noise, and reverberation: Relationships with age and hearing loss

Identification of vowels in quiet, noise, and reverberation: Relationships with age and hearing loss

Cues for perception of the diphthong /ɑi/ in either noise or reverberation. Part I. Duration of the transition

Vowels and Diphthongs in Cangnan Southern Min Chinese Dialect

Contact Info

Product

Resources

About