Archives of Acoustics最新文献_第7页

Sleep Snoring Sound Recognition Based on Wavelet Packet Transform 基于小波包变换的睡眠打鼾声识别

IF 0.9 4区物理与天体物理

Archives of Acoustics Pub Date : 2023-07-20 DOI: 10.24425/aoa.2022.142906

Li Ding, J. Peng, Xiaowen Zhang, Lijuan Song

{"title":"Sleep Snoring Sound Recognition Based on Wavelet Packet Transform","authors":"Li Ding, J. Peng, Xiaowen Zhang, Lijuan Song","doi":"10.24425/aoa.2022.142906","DOIUrl":"https://doi.org/10.24425/aoa.2022.142906","url":null,"abstract":"Snoring is a typical and intuitive symptom of the obstructive sleep apnea hypopnea syndrome (OSAHS), which is a kind of sleep-related respiratory disorder having adverse eﬀects on people’s lives. Detecting snoring sounds from the whole night recorded sounds is the ﬁrst but the most important step for the snoring analysis of OSAHS. An automatic snoring detection system based on the wavelet packet transform (WPT) with an eXtreme Gradient Boosting (XGBoost) classiﬁer is proposed in the paper, which recognizes snoring sounds from the enhanced episodes by the generalization subspace noise reduction algorithm. The feature selection technology based on correlation analysis is applied to select the most discriminative WPT features. The selected features yield a high sensitivity of 97.27% and a precision of 96.48% on the test set. The recognition performance demonstrates that WPT is eﬀective in the analysis of snoring and non-snoring sounds, and the diﬀerence is exhibited much more comprehensively by sub-bands with smaller frequency ranges. The distribution of snoring sound is mainly on the middle and low frequency parts, there is also evident diﬀerence between snoring and non-snoring sounds on the high frequency part.","PeriodicalId":8149,"journal":{"name":"Archives of Acoustics","volume":" ","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41752098","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of Power Amplifier Distortion on the Speech Transmission Index for Public Address Systems 功率放大器失真对公共广播系统语音传输指标的影响

IF 0.9 4区物理与天体物理

Archives of Acoustics Pub Date : 2023-07-20 DOI: 10.24425/aoa.2022.141649

P. Dziechcinski

引用次数: 0

Optimal Selection of Multicomponent Matching Layers for Piezoelectric Transducers using Genetic Algorithm 基于遗传算法的压电换能器多分量匹配层优化选择

IF 0.9 4区物理与天体物理

Archives of Acoustics Pub Date : 2023-07-20 DOI: 10.24425/aoa.2020.135276

T. Gudra, D. Banasiak

{"title":"Optimal Selection of Multicomponent Matching Layers for Piezoelectric Transducers using Genetic Algorithm","authors":"T. Gudra, D. Banasiak","doi":"10.24425/aoa.2020.135276","DOIUrl":"https://doi.org/10.24425/aoa.2020.135276","url":null,"abstract":"One major problem in the design of ultrasonic transducers results from a huge impedance mismatch between piezoelectric ceramics and the loading medium (e.g. gaseous, liquid, and biological media). Solving this problem requires the use of a matching layer (or layers). Optimal selection of materials functioning as matching layers for piezoelectric transducers used in transmitting and receiving ultrasound waves strictly depends on the type of the medium receiving the ultrasound energy. Several methods allow optimal selection of materials used as matching layers. When using a single matching layer, its impedance can be calculated on the basis of the Chebyshev, DeSilets or Souquet criteria. In the general case, the typically applied methods use an analogy to a transmission line in order to calculate the transmission coeﬃcient T . This paper presents an extension of transmission coeﬃcient calculations with additional regard to the attenuation coeﬃcients of particular layers. The transmission coeﬃcient T is optimised on the basis of a genetic algorithm method. The obtained results indicate a signiﬁcant divergence between the classical calculation methods and the genetic algorithm method.","PeriodicalId":8149,"journal":{"name":"Archives of Acoustics","volume":" ","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43885551","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

An Acoustic Study of the Emphatic Occlusive [t] in School-Going Children with Cleft Palate or Cleft Lip 腭裂或唇裂学龄儿童强调性咬合[t]的声学研究

IF 0.9 4区物理与天体物理

Archives of Acoustics Pub Date : 2023-07-20 DOI: 10.24425/aoa.2022.141645

Khaled Baazi

{"title":"An Acoustic Study of the Emphatic Occlusive [t] in School-Going Children with Cleft Palate or Cleft Lip","authors":"Khaled Baazi","doi":"10.24425/aoa.2022.141645","DOIUrl":"https://doi.org/10.24425/aoa.2022.141645","url":null,"abstract":"The aim of this acoustic study is to analyse the phoneme [t ˙ ] produced by school children surgically operated on for the cleft palate or cleft lip, in order to examine their vocal characteristics, to provide speech therapists with numerous concrete analyses of voice and speech, to eﬀectively support them and to prevent some serious outcomes on their psychological and academic development. The motivation for this study was mainly stemming from the diﬃculties that Algerian schoolchildren with clefts encounter in the pronunciation of this phoneme. To carry out the study, several acoustic parameters were investigated in terms of the fundamental frequency F 0 , the ﬁrst three formants F 1 , F 2 , and F 3 , the energy E 0 , the Voice Onset Time (VOT), the durations [CV] and [V] of the subsequent vowel [a]. For the analysis, further important parameters in the ﬁeld of pathological speech were deployed, namely the degree of disturbance of F 0 (jitter), the degree of disturbance of intensity (shimmer) and the HNR (Harmonics to Noise Ratio). Results revealed disturbance in the values of F 1 , F 2 , and F 3 and stability in the values of F 0 . Another important reported aspect is the increase in the value of the VOT due to the diﬃculties in controlling the plosives’ successive closure and release.","PeriodicalId":8149,"journal":{"name":"Archives of Acoustics","volume":" ","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44098818","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of psychoacoustic annoyance on EEG signals of tractor drivers 心理声干扰对拖拉机驾驶员脑电图信号的影响

IF 0.9 4区物理与天体物理

Archives of Acoustics Pub Date : 2023-07-20 DOI: 10.24425/aoa.2022.142899

M. Lashgari, M. Arab, Mohsen Nadjafi, Mojtaba Rafiee

{"title":"Effect of psychoacoustic annoyance on EEG signals of tractor drivers","authors":"M. Lashgari, M. Arab, Mohsen Nadjafi, Mojtaba Rafiee","doi":"10.24425/aoa.2022.142899","DOIUrl":"https://doi.org/10.24425/aoa.2022.142899","url":null,"abstract":"The purpose of this study was to evaluate the psychoacoustic annoyance (PA) that the tractor drivers are exposed to, and investigate its eﬀects on their brain signals during their work activities. To this aim, the sound of a garden tractor was recorded. Each driver’s electroencephalogram (EEG) was then recorded at ﬁve diﬀerent engine speeds. The Higuchi method was used to calculate the fractal dimension of the brain signals. To evaluate the amount of acoustic annoyance that the tractor drivers were exposed to, a psychoacoustic annoyance (PA) model was used. The results showed that as the engine speed increased, the values of PA increased as well. The results also indicated that an increase in the Higuchi’s fractal dimension (HFD) of alpha and beta bands was due to the increase of the engine speed. The regression results also revealed that there was a high correlation between the HFD of fast wave activities and PA, in that, the coeﬃcients of determination were 0.92 and 0.91 for alpha and beta bands, respectively. Hence, a good correlation between the EEG signals and PA can be used to develop a mathematical model which quantiﬁes the human brain response to the external stimuli.","PeriodicalId":8149,"journal":{"name":"Archives of Acoustics","volume":" ","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47405796","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Design of sound absorbers based on open-cell foams via microstructure-based modeling 基于微结构建模的开孔泡沫吸声器设计

IF 0.9 4区物理与天体物理

Archives of Acoustics Pub Date : 2023-07-20 DOI: 10.24425/aoa.2022.142894

V. Trinh, Thien-Van Nguyen, T. Nguyen, Minh-Tan Nguyen

引用次数: 0

Influence of Loudspeaker Configurations and Orientations on Sound Localization 扬声器配置和方位对声音定位的影响

IF 0.9 4区物理与天体物理

Archives of Acoustics Pub Date : 2023-07-20 DOI: 10.24425/aoa.2022.140732

S. Yao

{"title":"Influence of Loudspeaker Configurations and Orientations on Sound Localization","authors":"S. Yao","doi":"10.24425/aoa.2022.140732","DOIUrl":"https://doi.org/10.24425/aoa.2022.140732","url":null,"abstract":"As the virtual reality (VR) market is growing at a fast pace, numerous users and producers are emerging with the hope to navigate VR towards mainstream adoption. Although most solutions focus on providing high-resolution and high-quality videos, the acoustics in VR is as important as visual cues for maintaining consistency with the natural world. We therefore investigate one of the most important audio solutions for VR applications: ambisonics. Several VR producers such as Google, HTC, and Facebook support the ambisonic audio format. Binaural ambisonics builds a virtual loudspeaker array over a VR headset, providing immersive sound. The conﬁguration of the virtual loudspeaker inﬂuences the listening perception, as has been widely discussed in the literature. However, few studies have investigated the inﬂuence of the orientation of the virtual loudspeaker array. That is, the same loudspeaker arrays with diﬀerent orientations can produce diﬀerent spatial eﬀects. This paper introduces a VR audio technique with optimal design and proposes a dual-mode audio solution. Both an objective measurement and a subjective listening test show that the proposed solution eﬀectively enhances spatial audio quality.","PeriodicalId":8149,"journal":{"name":"Archives of Acoustics","volume":" ","pages":""},"PeriodicalIF":0.9,"publicationDate":"2023-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48206166","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Extended high frequency hearing thresholds in tinnitus patients with normal hearing 听力正常的耳鸣患者的扩展高频听阈

IF 0.9 4区物理与天体物理

Archives of Acoustics Pub Date : 2023-07-20 DOI: 10.24425/aoa.2022.142897

L. Ristovska, Z. Jachova

引用次数: 0

Performance Analysis of MVDR Beamformer Applied on an End-fire Microphone Array Composed of Unidirectional Microphones MVDR波束形成器在单向传声器端射传声器阵列中的性能分析

IF 0.9 4区物理与天体物理

Archives of Acoustics Pub Date : 2023-07-20 DOI: 10.24425/aoa.2021.138154

Z. Šarić, M. Subotić, Ruzica Bilibajkic, Marko Barjaktarovic, N. Zdravković

引用次数: 3

International Symposium on Fluid Acoustics IFA2019 Sopot, Poland, May 20–22, 2019 国际流体声学研讨会(IFA2019)，波兰索波特，2019年5月20-22日