JASA express letters最新文献

This study is concerned with the aperture of the mid vowel /E/ in nonfinal syllables in Quebec French. The hypothesis tested is that in underived disyllabic words, the aperture of /E/ would be determined via harmony with the following vowel. Based on predictions from a classifier trained on acoustic properties of word-final vowels, nonfinal vowels were labeled as mid-close or mid-open. Although distant coarticulatory effects were observed, the harmony hypothesis was not supported. The results revealed a bias toward a mid-open quality and a reduced acoustic distinction, which warrant further investigation.

Interaural pitch matching is a common task used with bilateral cochlear implant (CI) users, although studies measuring this have largely focused on place-based pitch matches. Temporal-based pitch also plays an important role in CI users' perception, but interaural temporal-based pitch matching has not been well characterized for CI users. To investigate this, bilateral CI users were asked to match amplitude modulation frequencies of stimulation across ears. Comparisons were made to previous place-based pitch matching data that were collected using similar procedures. The results indicate that temporal-based pitch matching is particularly sensitive to the choice of reference ear.

This study explores the engagement of national standards bodies and practitioners with the ISO 12913 series on soundscape. It reveals critical challenges in stakeholder engagement, communication, competence, and practical application. A strategic roadmap, aligned with the normalization process theory, is proposed, comprising meaningful stakeholder engagement, building workability and integration, and community building and reflective monitoring. Results underscore the influence of national priorities, communication gaps, limited resources, and the need for practical guidance. Future efforts should focus on promoting cross-disciplinary collaboration and developing tools to quantify the societal and economic impact of soundscape interventions, addressing the multifaceted barriers identified.

This paper examines the adaptations African American English speakers make when imagining talking to a voice assistant, compared to a close friend/family member and to a stranger. Results show that speakers slowed their rate and produced less pitch variation in voice-assistant-"directed speech" (DS), relative to human-DS. These adjustments were not mediated by how often participants reported experiencing errors with automatic speech recognition. Overall, this paper addresses a limitation in the types of language varieties explored when examining technology-DS registers and contributes to our understanding of the dynamics of human-computer interaction.

Moose are a popular species with recreationists but understudied acoustically. We used publicly available videos to characterize and quantify the vocalizations of moose in New Hampshire separated by age/sex class. We found significant differences in peak frequency, center frequency, bandwidth, and duration across the groups. Our results provide quantification of wild moose vocalizations across age/sex classes, which is a key step for passive acoustic detection of this species and highlights public videos as a potential resource for bioacoustics research of hard-to-capture and understudied species.

The discovery that listeners more accurately identify words repeated in the same voice than in a different voice has had an enormous influence on models of representation and speech perception. Widely replicated in English, we understand little about whether and how this effect generalizes across languages. In a continuous recognition memory study with Hindi speakers and listeners (N = 178), we replicated the talker-specificity effect for accuracy-based measures (hit rate and D'), and found the latency advantage to be marginal (p = 0.06). These data help us better understand talker-specificity effects cross-linguistically and highlight the importance of expanding work to less studied languages.

English-speaking bimodal and bilateral cochlear implant (CI) users can segregate competing speech using talker sex cues but not spatial cues. While tonal language experience allows for greater utilization of talker sex cues for listeners with normal hearing, tonal language benefits remain unclear for CI users. The present study assessed the ability of Mandarin-speaking bilateral and bimodal CI users to recognize target sentences amidst speech maskers that varied in terms of spatial cues and/or talker sex cues, relative to the target. Different from English-speaking CI users, Mandarin-speaking CI users exhibited greater utilization of spatial cues, particularly in bimodal listening.