Interactions of Tone and Intonation in Whispered Mandarin

A previous study has found that whispered Mandarin, though still allowing listeners to perceive tones to a certain degree, does not carry acoustic cues that are special to whispered tones. That conclusion, however, was based on data from only one speaker. The present study attempted to verify the earlier finding with data from more speakers, with an additional goal to find out if there are acoustic cues to intonation in whispered Mandarin and whether they interact with tonal cues. Twelve Mandarin speakers produced tonal as well as intonational contrasts in both phonated and whispered speech. Acoustic analyses found that whispered questions had longer duration, greater intensity and shallower spectral tilt than statements. However, a perception experiment with 20 native listeners showed a strong bias toward hearing statement in whispers, so that questions were identified well below chance. Thus the acoustic properties in whisper were countering each other as cues to intonation. There was also an interaction of tone and intonation in whispers in that Tone 2 and question help each other while Tone 4 and question hinder each other in their perceptual identification. Overall, therefore, there do not seem to be special perceptual cues to whispered intonation either

At the edge of intonation: the interplay of utterance-final F0 movements and voiceless fricative sounds

The paper is concerned with the 'edge of intonation' in a twofold sense. It focuses on utterance-final F0 movements and crosses the traditional segment-prosody divide by investigating the interplay of F0 and voiceless fricatives in speech production. An experiment was performed for German with four types of voiceless fricatives: /f/, /s/, /ʃ/ and /x/. They were elicited with scripted dialogues in the contexts of terminal falling statement and high rising question intonations. Acoustic analyses show that fricatives concluding the high rising question intonations had higher mean centres of gravity (CoGs), larger CoG ranges and higher noise energy levels than fricatives concluding the terminal falling statement intonations. The different spectral-energy patterns are suitable to induce percepts of a high 'aperiodic pitch' at the end of the questions and of a low 'aperiodic pitch' at the end of the statements. The results are discussed with regard to the possible existence of 'segmental intonation' and its implication for F0 truncation and the segment-prosody dichotomy, in which segments are the alleged troublemakers for the production and perception of intonation

Aerodynamic and durational cues of phonological voicing in whisper

International audienceThis study concerns the phonologization process of fine phonetic details in French, such as segmental durations used as a secondary phonetic information in obstruents voicing. Phonologization is expected when phonetic properties are at least partly dissociated from their physical conditioning. Due to a lack of a physical voicing constraint, the whisper could provide a new paradigm to study this process, by assessing the weight of physical vs linguistic conditioning of the segmental duration of obstruents as function of their phonological voicing. In many languages, the voiced obstruents show shorter durations than unvoiced ones. On the one hand, this phonetic durational difference is usually attributed to the Aerodynamic Voicing Constraint in the vibration of the vocal folds during obstruents. However, this duration contrast due to voicing specification is also phonetically preserved in production in whispered phonation, i.e. without any physical voicing due to the open glottis. On the other hand, it is largely seen as linguistically controlled, because of the important durational difference observed and the role of C duration in the perception of voicing contrast in modal or whispered speech. It is assumed that if the durational contrast of voicing in whisper is produced in absence of a physiological constraint, it would be the evidence of the phonologization of such fine phonetic details

The perception of intonation questions and statements in Cantonese

In tone languages there are potential conflicts in the perception of lexical tone and intonation, as both depend mainly on the differences in fundamental frequency (F0) patterns. The present study investigated the acoustic cues associated with the perception of sentences as questions or statements in Cantonese, as a function of the lexical tone in sentence final position. Cantonese listeners performed intonation identification tasks involving complete sentences, isolated final syllables, and sentences without the final syllable (carriers). Sensitivity (d′ scores) were similar for complete sentences and final syllables but were significantly lower for carriers. Sensitivity was also affected by tone identity. These findings show that the perception of questions and statements relies primarily on the F0 characteristics of the final syllables (local F0 cues). A measure of response bias (c) provided evidence for a general bias toward the perception of statements. Logistic regression analyses showed that utterances were accurately classified as questions or statements by using average F0 and F0 interval. Average F0 of carriers (global F0 cue) was also found to be a reliable secondary cue. These findings suggest that the use of F0 cues for the perception of intonation question in tonal languages is likely to be language-specific. © 2011 Acoustical Society of America.published_or_final_versio

Introducing prosodic phonetics

Wetensch. publicati

Acoustics of whispered boundary tones: effects of vowel type and tonal crowding

Theoretical and Experimental Linguistic

How to Tell Beans from Farmers: Cues to the Perception of Pitch Accent in Whispered Norwegian

East Norwegian employs pitch accent contours in order to make lexical distinctions. This paper researches listeners' ability to make lexical distinctions in the absence of f0 (ie. whispered speech) as the listener attempts to determine which pitch accent word token best fits into a whispered ambiguous utterance in spoken Norwegian. The results confirm that local syntactic context alone is not a reliable cue to assist in lexical selection and concur with Fintoft (1970) in suggesting that listeners utilise a separate prosodic cue, possibly syllable duration or intensity, to make the pitch accent distinction in whispered speech

Recovering implicit pitch contours from formants in whispered speech

Whispered speech is characterised by a noise-like excitation that results in the lack of fundamental frequency. Considering that prosodic phenomena such as intonation are perceived through f0 variation, the perception of whispered prosody is relatively difficult. At the same time, studies have shown that speakers do attempt to produce intonation when whispering and that prosodic variability is being transmitted, suggesting that intonation "survives" in whispered formant structure. In this paper, we aim to estimate the way in which formant contours correlate with an "implicit" pitch contour in whisper, using a machine learning model. We propose a two-step method: using a parallel corpus, we first transform the whispered formants into their phonated equivalents using a denoising autoencoder. We then analyse the formant contours to predict phonated pitch contour variation. We observe that our method is effective in establishing a relationship between whispered and phonated formants and in uncovering implicit pitch contours in whisper.Comment: 5 pages, 3 figures, 2 tables, Accepted at ICPhS 202

The Phonetics and Phonology of the Polish Calling Melodies

Two calling melodies of Polish were investigated, the routine call, used to call someone for an everyday reason, and the urgent call, which conveys disapproval of the addressee’s actions. A Discourse Completion Task was used to elicit the two melodies from speakers of Polish using twelve names from one to four syllables long; there were three names per syllable count, and speakers produced three tokens of each name with each melody. The results, based on eleven speakers, show that the routine calling melody consists of a low F0 stretch followed by a rise-fall-rise; the urgent calling melody, on the other hand, is a simple rise-fall. Systematic differences were found in the scaling and alignment of tonal targets: the routine call showed late alignment of the accentual pitch peak and in most instances lower scaling of targets. The accented vowel was also affected, being overall louder in the urgent call. Based on the data and comparisons with other Polish melodies, we analyse the routine call as LH* !H-H% and the urgent call as H* L-L%. We discuss the results and our analysis in light of recent findings on calling melodies in other languages, and explore their repercussions for intonational phonology and the modelling of intonation