Proceedings of meetings on acoustics. Acoustical Society of America最新文献_第5页

Influence of public space type on soundscape perception in residential contexts 公共空间类型对居住环境声景感知的影响

Proceedings of meetings on acoustics. Acoustical Society of America Pub Date : 2023-01-01 DOI: 10.1121/2.0001772

Yichun Lu, Siu-Kit Lau

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Measurement of acoustic radiation force on a sphere near a boundary 在靠近边界的球体上测量声辐射力

Proceedings of meetings on acoustics. Acoustical Society of America Pub Date : 2023-01-01 DOI: 10.1121/2.0001769

B. Simon, M. Hamilton

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Gunshot detection from audio excerpts of urban sounds using transfer learning 使用迁移学习从城市声音的音频摘录中检测枪声

Proceedings of meetings on acoustics. Acoustical Society of America Pub Date : 2023-01-01 DOI: 10.1121/2.0001783

John Irungu, Jamelia Ancel, Wagdy Mahmoud, Max Denis

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An exploratory study of skull-based ultrasonic Lamb waves as an intracranial pressure monitoring method 基于颅骨的超声Lamb波作为颅内压监测方法的探索性研究

Proceedings of meetings on acoustics. Acoustical Society of America Pub Date : 2023-01-01 DOI: 10.1121/2.0001796

Dan Linh Nguyen, Phillip Jason White

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Observations and potential mechanisms for tornado infrasound 龙卷风次声的观测及其潜在机制

Proceedings of meetings on acoustics. Acoustical Society of America Pub Date : 2023-01-01 DOI: 10.1121/2.0001784

Brian R. Elbing, Trevor C. Wilson, Christopher E. Petrin, Real J. KC, Taylor Swaim, Bryce Lindsey

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Temperature-induced sound speed variability in a laboratory water tank 实验室水箱中温度引起的声速变化

Proceedings of meetings on acoustics. Acoustical Society of America Pub Date : 2023-01-01 DOI: 10.1121/2.0001757

Alexandra M. Hopps-McDaniel, T. Neilsen

{"title":"Temperature-induced sound speed variability in a laboratory water tank","authors":"Alexandra M. Hopps-McDaniel, T. Neilsen","doi":"10.1121/2.0001757","DOIUrl":"https://doi.org/10.1121/2.0001757","url":null,"abstract":"Temperature variations in the ocean cause changes in the sound speed and, hence, sound propagation. This project quantiﬁed the sound speed variation achievable in a laboratory water tank. The rectangular tank has paneling that minimizes lateral reﬂections. Two temperature sensors measured the temperature changes over time while the water was cooled with ice, heated, and naturally warmed back to room temperature. Sound speed values were calculated using the freshwater Marczak equation. We found that while the temperature remains relatively uniform near the bottom of the tank during heating and cooling. Heating increases the sound speed at a rate of 3.5 m/s per hour, while adding ice in various quantities decreases the temperature rapidly. After rapid cooling, the water near the surface of the tank warms faster than the water near the bottom, creating a depth-dependent sound speed gradient. Eight hours after adding 380 pounds of pebble ice, the sound speed gradient was 10.7 m/s per meter. The water temperature variability in these tank measurements replicates a portion of the sound speed variability seen in the ocean. This sound speed variability can then be used to test the robustness of machine learning algorithms.","PeriodicalId":88302,"journal":{"name":"Proceedings of meetings on acoustics. Acoustical Society of America","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"63520995","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

Soundscape evaluation method based on participatory design 基于参与式设计的声景评价方法

Proceedings of meetings on acoustics. Acoustical Society of America Pub Date : 2023-01-01 DOI: 10.1121/2.0001758

Yichun Lu, Siu-Kit Lau

引用次数: 0

Development and evaluation of windscreen designs for high altitude balloons 高空气球风挡设计的发展与评价

Proceedings of meetings on acoustics. Acoustical Society of America Pub Date : 2023-01-01 DOI: 10.1121/2.0001785

Taylor Swaim, Kate Spillman, Emalee Hough, Zach Yap, Jamey Jacob, Brian Elbing

引用次数: 0

Wave equations of the two common sediment acoustic theories 两种常用泥沙声学理论的波动方程

Proceedings of meetings on acoustics. Acoustical Society of America Pub Date : 2023-01-01 DOI: 10.1121/2.0001795

Sri Nivas Chandrasekaran, Sverre Holm, Sven Peter Näsholm

引用次数: 0

Suppressing reverberation in cochlear implant stimulus patterns using time-frequency masks based on phoneme groups. 基于音素群的时频掩模抑制人工耳蜗刺激模式的混响。

Proceedings of meetings on acoustics. Acoustical Society of America Pub Date : 2022-12-01 Epub Date: 2023-02-13 DOI: 10.1121/2.0001698

Kevin Chu, Leslie Collins, Boyla Mainsah

{"title":"Suppressing reverberation in cochlear implant stimulus patterns using time-frequency masks based on phoneme groups.","authors":"Kevin Chu, Leslie Collins, Boyla Mainsah","doi":"10.1121/2.0001698","DOIUrl":"10.1121/2.0001698","url":null,"abstract":"<p><p>Cochlear implant (CI) users experience considerable difficulty in understanding speech in reverberant listening environments. This issue is commonly addressed with time-frequency masking, where a time-frequency decomposed reverberant signal is multiplied by a matrix of gain values to suppress reverberation. However, mask estimation is challenging in reverberant environments due to the large spectro-temporal variations in the speech signal. To overcome this variability, we previously developed a phoneme-based algorithm that selects a different mask estimation model based on the underlying phoneme. In the ideal case where knowledge of the phoneme was assumed, the phoneme-based approach provided larger benefits than a phoneme-independent approach when tested in normal-hearing listeners using an acoustic model of CI processing. The current work investigates the phoneme-based mask estimation algorithm in the real-time feasible case where the prediction from a phoneme classifier is used to select the phoneme-specific mask. To further ensure real-time feasibility, both the phoneme classifier and mask estimation algorithm use causal features extracted from within the CI processing framework. We conducted experiments in normal-hearing listeners using an acoustic model of CI processing, and the results showed that the phoneme-specific algorithm benefitted the majority of subjects.</p>","PeriodicalId":88302,"journal":{"name":"Proceedings of meetings on acoustics. Acoustical Society of America","volume":"50 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10686264/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138464937","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