Tracking and glimpsing speech in noise: Role of fundamental frequency

1996 ◽  
Vol 100 (4) ◽  
pp. 2680-2680 ◽  
Author(s):  
Peter F. Assmann
Keyword(s):  
Fundamental Frequency ◽  
Speech In Noise

Role of Fundamental Frequency Differences in the Perceptual Separation of Competing Vowel Sounds by Listeners With Normal Hearing and Listeners With Hearing Loss

1997 ◽  
Vol 40 (6) ◽  
pp. 1434-1444 ◽  
Author(s):  
Kathryn Hoberg Arehart ◽  
Catherine Arriaga King ◽  
Kelly S. McLean-Mudgett
Keyword(s):  
Hearing Loss ◽  
Fundamental Frequency ◽  
Normal Hearing ◽  
Average Increase ◽  
Identification Task ◽  
Vowel Identification ◽  
Overall Performance ◽  
The Mean ◽  
Perceptual Separation

This study compared the ability of listeners with normal hearing and listeners with moderate to moderately-severe sensorineural hearing loss to use fundamental frequency differences (ΔF 0 ) in the identification of monotically presented simultaneous vowels. Two psychophysical procedures, double vowel identification and masked vowel identification, were used to measure identification performance as a function of ΔF 0 (0 through 8 semitones) between simultaneous vowels. Performance in the double vowel identification task was measured by the percentage of trials in which listeners correctly identified both vowels in a double vowel. The masked vowel identification task yielded thresholds representing signal-to-noise ratios at which listeners could just identify target vowels in the presence of a masking vowel. In the double vowel identification task, both listeners with normal hearing and listeners with hearing loss showed significant ΔF 0 benefit: Between 0 and 2 semitones, listeners with normal hearing showed an 18.5% average increase in performance; listeners with hearing loss showed a 16.5% average increase. In the masked vowel identification task, both groups showed significant ΔF 0 benefit. However, the mean benefit associated with ΔF 0 differences in the masked vowel task was more than twice as large in listeners with normal hearing 9.4 dB) when compared to listeners with hearing loss (4.4 dB), suggesting less ΔF 0 benefit in listeners with hearing loss. In both tasks, overall performance of listeners with hearing loss was significantly worse than performance of listeners with normal hearing. Possible reasons for reduced ΔF 0 benefit and decreased overall performance in listeners with hearing loss include reduced audibility of vowel sounds and deficits in spectro-temporal processing.

Vocal discrimination of kin and non-kin agemates among lambs

Behaviour ◽  
2004 ◽  
Vol 141 (3) ◽  
pp. 355-369 ◽  
Author(s):  
Frédéric Sebe ◽  
Séverine Ligout ◽  
Richard Porter
Keyword(s):  
Fundamental Frequency ◽  
Social Recognition ◽  
Ovis Aries ◽  
Social Discrimination ◽  
Playback Experiments ◽  
Auditory Cues ◽  
Vocal Signatures ◽  
Acoustic Analyses ◽  
Vocal Discrimination

AbstractPlayback experiments were conducted with 4 week old Ile-de-France lambs (Ovis aries) to assess the role of auditory cues in social discrimination. After being habituated to the test enclosure, lambs were individually exposed to bleats from two stimulus individuals. Twin lambs were tested with recorded bleats of their sibling versus an unfamiliar agemate and single lambs with bleats of a familiar agemate versus an unfamiliar lamb. Lambs responded more frequently to the bleats of their sibling (for twin lambs) or of a familiar agemate (for single lambs) than to those of an unfamiliar lamb. Such discriminative responses to the bleats of familiar twins and non-kin lambs suggest that vocalizations may be a sufficient basis for social recognition. Acoustic analyses of the playback bleats revealed significant differences between the signals from the different stimulus lambs and suggest that fundamental frequency may be an important parameter of lambs' individual vocal signatures.

Role of timbre and fundamental frequency in voice gender adaptation

2015 ◽  
Vol 138 (2) ◽  
pp. 1180-1193 ◽  
Author(s):  
Verena G. Skuk ◽  
Lea M. Dammann ◽  
Stefan R. Schweinberger
Keyword(s):  
Fundamental Frequency

scholarly journals Same or Different? Perceptual Learning for Connected Speech Induced by Brief and Longer Experiences

2021 ◽  
Author(s):  
Karen Banai ◽  
Hanin Karawani ◽  
Limor Lavie ◽  
Yizhar Lavner
Keyword(s):  
Perceptual Learning ◽  
Additional Contribution ◽  
Connected Speech ◽  
Rapid Learning ◽  
Adverse Conditions ◽  
Learning Experiment ◽  
Compressed Speech ◽  
Speech In Noise ◽  
Extract Information

Abstract Perceptual learning, defined as long-lasting changes in the ability to extract information from the environment, occurs following either brief exposure or prolonged practice. Whether these two types of experience yield qualitatively distinct patterns of learning is not clear. We used a time-compressed speech task to assess perceptual learning following either rapid exposure or additional training. We report that both experiences yielded robust and long-lasting learning. Individual differences in rapid learning explained unique variance in performance in independent speech tasks (natural-fast speech and speech-in-noise) with no additional contribution for training-induced learning (Experiment 1). Finally, it seems that similar factors influence the specificity of the two types of learning (Experiment 1 and 2). We suggest that rapid learning is key for understanding the role of perceptual learning in speech recognition under adverse conditions while longer learning could serve to strengthen and stabilize learning.

scholarly journals A preliminary study on nasalization and phonation

2021 ◽  
Vol 23 (1) ◽  
pp. 116-139
Author(s):  
Xuan Li ◽  
Feng Wang
Keyword(s):  
Fundamental Frequency ◽  
Soft Palate ◽  
Vocal Folds ◽  
Preliminary Study ◽  
Phonetic Cues ◽  
The Relationship ◽  
The Way

Abstract Although it is widely acknowledged that different speech processes may interact with each other, the way that nasalization affects phonation remains poorly understood. This paper explores the relationship between nasalization and phonation, by analyzing the phonetic cues of the tense/lax distinction both in nasalization and non-nasalization in the Bai language. The data for discussion is from two Bai dialects, Chengbei and Jinhua, which have a tense/lax distinction in both nasalized and non-nasalized syllables. Three phonation parameters – fundamental frequency (F0), open quotient (OQ), and speed quotient (SQ) – are extracted from EGG signals for analysis. It is found that the influence of nasalization on phonation varies with the tone contours. As for the level tones, the role of phonation manner in tone distinction is not evident in nasalization in that tense tones can be distinguished from lax tones only by pitch. However, in non-nasalization, phonation manner plays an indispensable role in tone distinction, in that the contrast between tense and lax tones are reflected not only on F0 but also on OQ and SQ. Moreover, non-nasalized tense tones are more likely to be accompanied by non-modal phonation that is characterized by a significantly higher SQ. In terms of articulatory explanation, high SQ in non-modal phonation is the result of the vibration of tightened vocal folds, and the tension of vocal folds is caused by raising the soft palate in non-nasalization. As for the falling tones, the role of phonation manner in tone distinction is more salient in nasalization than in non-nasalization in Chengbei Bai, but it is not attested in Jinhua Bai. This study shows that the interaction between nasalization and phonation in Bai can be revealed in the analysis of phonation parameters, i.e. F0, OQ, and SQ.

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