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Non-negative matrix factorization based single-channel source-separation of passive underwater acoustic signals in deep sea. 基于非负矩阵分解的深海被动水声信号单通道源分离。
IF 1.2
JASA express letters Pub Date : 2025-02-01 DOI: 10.1121/10.0035936
Jean Lecoulant, Abdel-Ouahab Boudraa, Samuel Pinson
{"title":"Non-negative matrix factorization based single-channel source-separation of passive underwater acoustic signals in deep sea.","authors":"Jean Lecoulant, Abdel-Ouahab Boudraa, Samuel Pinson","doi":"10.1121/10.0035936","DOIUrl":"https://doi.org/10.1121/10.0035936","url":null,"abstract":"<p><p>We use non-negative matrix factorization for source separation on ultra-low frequency passive-acoustic data from a single-channel recording acquired in deep sea. Non-negative matrix factorization decomposes the spectrogram into a spectral-component matrix and a time-encoding matrix. Detectors use known time-frequency features to group components from the same source and reconstruct spectrograms of blue whale calls, seismic sounds, and ship noise. Data are separated at low computational cost and without learning step. The separation assessment using scale-invariant signal-to-distortion ratio on spectrograms of simulated reference data is satisfying. Source separation on ocean-bottom seismometer data from the Southern Indian Ocean provides convincing results.</p>","PeriodicalId":73538,"journal":{"name":"JASA express letters","volume":"5 2","pages":""},"PeriodicalIF":1.2,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143451171","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Measuring phase difference to sense small-scale ocean sound-speed structure. 测量相位差探测小尺度海洋声速结构。
IF 1.2
JASA express letters Pub Date : 2025-02-01 DOI: 10.1121/10.0035566
Jacob P DeFilippis, Bruce D Cornuelle, Andrew J Lucas, W S Hodgkiss, W A Kuperman
{"title":"Measuring phase difference to sense small-scale ocean sound-speed structure.","authors":"Jacob P DeFilippis, Bruce D Cornuelle, Andrew J Lucas, W S Hodgkiss, W A Kuperman","doi":"10.1121/10.0035566","DOIUrl":"https://doi.org/10.1121/10.0035566","url":null,"abstract":"<p><p>Observations from a broadband acoustic experiment in deep water probe the temporal behavior of mid-frequency propagation through sound-speed fine structure advected by internal waves. The measured phases of two arrivals with similar propagation paths at 1.8 km range are sampled every 63.5 ms for 30 min. Simultaneous measurements of ocean fine structure near the propagation are used to model the changing arrival phase. The phase difference between arrivals is analyzed to understand changes in the underwater acoustic channel at the meter scale. A comparison between modeled and observed phase difference highlights an internal wave driven signal in the acoustic observations.</p>","PeriodicalId":73538,"journal":{"name":"JASA express letters","volume":"5 2","pages":""},"PeriodicalIF":1.2,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143082561","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Wind-driven ambient noise characteristics in the Western Canadian arctic. 加拿大西部北极地区风驱动的环境噪声特征。
IF 1.2
JASA express letters Pub Date : 2025-02-01 DOI: 10.1121/10.0035591
Najeem Shajahan, William D Halliday, David R Barclay, Humfrey Melling, Andrea Neimi, Stephen J Insley
{"title":"Wind-driven ambient noise characteristics in the Western Canadian arctic.","authors":"Najeem Shajahan, William D Halliday, David R Barclay, Humfrey Melling, Andrea Neimi, Stephen J Insley","doi":"10.1121/10.0035591","DOIUrl":"https://doi.org/10.1121/10.0035591","url":null,"abstract":"<p><p>An analysis of ambient noise data collected from seven locations in the western Canadian Arctic at varying depths (30-350 m) during ice-free seasons over a period of five years (2018-2022) has been conducted. The measured noise level correlates well with wind speed after the removal of contaminated (sources other than wind) noise data. The characteristics of wind noise are predicted by fitting a multi-parameter empirical model to data. Results from the model are compared with existing empirical wind noise models and validated using data collected from one of the measurement locations.</p>","PeriodicalId":73538,"journal":{"name":"JASA express letters","volume":"5 2","pages":""},"PeriodicalIF":1.2,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143082578","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The negativity bias is encoded in language. 消极偏见被编码在语言中。
IF 1.2
JASA express letters Pub Date : 2025-02-01 DOI: 10.1121/10.0035924
Alexander Kilpatrick
{"title":"The negativity bias is encoded in language.","authors":"Alexander Kilpatrick","doi":"10.1121/10.0035924","DOIUrl":"10.1121/10.0035924","url":null,"abstract":"<p><p>This study investigates the relationship between emotional valence, phonemic bigram surprisal, and memory in American English. It reveals that negative words carry more Shannon's information-a measure of the transitional probability of phonemes within a word - than neutral or positive words and that increased information is associated with better memory performance. Specifically, words with negative valence and high surprisal were associated with increased hit rates and d' scores in an existing memory recognition experiment. These findings offer insights into the interaction between language structure and cognitive processing, with broader implications for memory and the evolution of communication.</p>","PeriodicalId":73538,"journal":{"name":"JASA express letters","volume":"5 2","pages":""},"PeriodicalIF":1.2,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143451172","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A fast measure of spatial separation for release from masking and its relation to intelligibility. 屏蔽释放空间分离的快速测度及其与可理解性的关系。
IF 1.2
JASA express letters Pub Date : 2025-02-01 DOI: 10.1121/10.0035840
Z Ellen Peng, Victoria Sweeney
{"title":"A fast measure of spatial separation for release from masking and its relation to intelligibility.","authors":"Z Ellen Peng, Victoria Sweeney","doi":"10.1121/10.0035840","DOIUrl":"10.1121/10.0035840","url":null,"abstract":"<p><p>This study validates a fast measure for spatial release from masking-minimum angular separation (MAS), the smallest spatial separation between a target and two-talker maskers to improve speech intelligibility by 20%. Three psychophysical methods to estimate MAS were compared, including the constant stimuli, adaptive staircase, and progressive tracking, which revealed no significant difference in the estimated threshold on the group level with bootstrapping. Results suggest that the MAS measurement can be expedited using the progressive tracking method without compromising robustness in the threshold estimation. The non-linear relationship between target-masker spatial separation, signal-to-noise ratio, and accuracy is explored.</p>","PeriodicalId":73538,"journal":{"name":"JASA express letters","volume":"5 2","pages":""},"PeriodicalIF":1.2,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11844435/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143412028","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Thank you to our 2024 reviewers. 感谢我们的2024位评审。
IF 1.2
JASA express letters Pub Date : 2025-02-01 DOI: 10.1121/10.0035590
Charles C Church
{"title":"Thank you to our 2024 reviewers.","authors":"Charles C Church","doi":"10.1121/10.0035590","DOIUrl":"https://doi.org/10.1121/10.0035590","url":null,"abstract":"","PeriodicalId":73538,"journal":{"name":"JASA express letters","volume":"5 2","pages":""},"PeriodicalIF":1.2,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143082574","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Improving transfer function measurements for three-dimensionally printed waveguides using a sand layer. 利用砂层改进三维打印波导的传递函数测量。
IF 1.2
JASA express letters Pub Date : 2025-02-01 DOI: 10.1121/10.0035803
Rémi Blandin, Patrick Häsner, Peter Birkholz
{"title":"Improving transfer function measurements for three-dimensionally printed waveguides using a sand layer.","authors":"Rémi Blandin, Patrick Häsner, Peter Birkholz","doi":"10.1121/10.0035803","DOIUrl":"10.1121/10.0035803","url":null,"abstract":"<p><p>The reciprocity principle is widely used for acoustic measurements, including three-dimensionally printed waveguide transfer functions. Previous studies revealed unexpected deviations in the 1-4 kHz range, likely due to secondary transmission paths. This study tests the effectiveness of a sand layer in reducing these paths and evaluates measurement variability and robustness to harmonic distortion. The method, tested on an affected replica and two additional replicas, shows that the sand layer effectively minimizes secondary transmission paths. The measurement system proves robust against harmonic distortion, ensuring good reproducibility, with results compared to simulations for validation.</p>","PeriodicalId":73538,"journal":{"name":"JASA express letters","volume":"5 2","pages":""},"PeriodicalIF":1.2,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143366905","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Frequency band analysis and comparison of localisation techniques for drones using microphone array measurements. 使用麦克风阵列测量的无人机频段分析和定位技术比较。
IF 1.2
JASA express letters Pub Date : 2025-02-01 DOI: 10.1121/10.0035915
Anique Altena, Mirjam Snellen, Salil Luesutthiviboon, Guido de Croon, Mark Voskuijl
{"title":"Frequency band analysis and comparison of localisation techniques for drones using microphone array measurements.","authors":"Anique Altena, Mirjam Snellen, Salil Luesutthiviboon, Guido de Croon, Mark Voskuijl","doi":"10.1121/10.0035915","DOIUrl":"https://doi.org/10.1121/10.0035915","url":null,"abstract":"<p><p>This study covers three aspects of acoustic localisation of drones using a microphone array. First, it assesses a grid-free approach, using differential evolution, to estimate the three-dimensional position of a drone. It is found that this is indeed possible for the drone in the near-field. For larger distances, it still provides the angular position of the drone. Second, the study emphasizes the essence of localisation over small frequency bands with the bands jointly spanning a large frequency range to reveal the presence of multiple sound sources and maximise the drone localisation range. Third, it addresses the localisation ranges for six different drones.</p>","PeriodicalId":73538,"journal":{"name":"JASA express letters","volume":"5 2","pages":""},"PeriodicalIF":1.2,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143416424","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Focus realization in Albanian: The role of prosody and utterance position. 阿尔巴尼亚语的焦点实现：韵律和话语位置的作用。
IF 1.2
JASA express letters Pub Date : 2025-02-01 DOI: 10.1121/10.0035419
Enkeleida Kapia, Felicitas Kleber, Jonathan Harrington, Michele Gubian
{"title":"Focus realization in Albanian: The role of prosody and utterance position.","authors":"Enkeleida Kapia, Felicitas Kleber, Jonathan Harrington, Michele Gubian","doi":"10.1121/10.0035419","DOIUrl":"10.1121/10.0035419","url":null,"abstract":"<p><p>This study investigates the realization of narrow and broad focus in Albanian, an understudied language. Production and perception data were analyzed for narrow and broad focus. Speakers were found to produce broad focus with a low f0-trough (L*) and narrow focus with a high f0-peak (L + H*) in both final and initial positions. Listeners preferred L + H* stimuli for narrow focus in initial position regardless of whether they heard a narrow or a broad focus question. These findings show that focus marking in Albanian is influenced more by position than prosodic cues.</p>","PeriodicalId":73538,"journal":{"name":"JASA express letters","volume":"5 2","pages":""},"PeriodicalIF":1.2,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143082559","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Why does the Falcon-9 booster make a triple sonic boom during flyback? An initial analysis. 为什么猎鹰9号助推器在飞回时产生三重音爆？初步分析。
IF 1.2
JASA express letters Pub Date : 2025-02-01 DOI: 10.1121/10.0035649
Mark C Anderson, Kent L Gee
{"title":"Why does the Falcon-9 booster make a triple sonic boom during flyback? An initial analysis.","authors":"Mark C Anderson, Kent L Gee","doi":"10.1121/10.0035649","DOIUrl":"https://doi.org/10.1121/10.0035649","url":null,"abstract":"<p><p>When the SpaceX Falcon-9 rocket booster descends through the atmosphere after a launch, it produces a sonic boom with three shocks in the far field, rather than the usual two-shock N-wave. In this Letter, the additional shock's origin is explained using sonic boom theory, nonlinear propagation modeling, computational fluid dynamics, and photographic evidence. The extra central shock results from a forward-migrating compression wave caused by the grid fins merging with a rearward-migrating rarefaction wave caused by the lower portions of the booster, including the folded landing legs.</p>","PeriodicalId":73538,"journal":{"name":"JASA express letters","volume":"5 2","pages":""},"PeriodicalIF":1.2,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143412037","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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