Applied Acoustics最新文献_第6页

Sound Transmission Performance of Plate-Type Acoustic Metamaterials for Quieter Aircraft Cabins 板式声学超材料在飞机机舱静音中的传声性能

IF 3.4 2区物理与天体物理

Applied Acoustics Pub Date : 2025-05-10 DOI: 10.1016/j.apacoust.2025.110806

Ajith A. , Balakrishnan B. , Raja S. , Paul Vizhian S.

{"title":"Sound Transmission Performance of Plate-Type Acoustic Metamaterials for Quieter Aircraft Cabins","authors":"Ajith A. , Balakrishnan B. , Raja S. , Paul Vizhian S.","doi":"10.1016/j.apacoust.2025.110806","DOIUrl":"10.1016/j.apacoust.2025.110806","url":null,"abstract":"<div><div>Acoustic Metamaterials (AMMs) are man-made materials that consist of a regular pattern of sub-wavelength microstructures, referred to as ‘unit cells’ and are intended to control sound waves in a way that is distinct from that of traditional acoustic materials. The current research work primarily focuses on using plate-type acoustic metamaterials to attenuate the aircraft cabin noise, in order to provide a comfortable (quieter) atmosphere within the aircraft cabin for the passengers during their flight. Estimation of Sound Pressure Levels (SPL) are carried out in two stages; the first stage is performed at the coupon level, where the best design is chosen out of eight unit cell designs for the experiments, based on the structural design optimization at the coupon level; followed by finite element based vibroacoustic analysis is performed on the fuselage structure using the selected unit cell. The performances of the developed acoustic metamaterials in terms of Sound Transmission Loss (STL) are investigated experimentally using an impedance tube, and the use of 3D printed casing inside the impedance tube for holding the AMM specimen with airgap, is first of its kind. The study shows, for a constant thickness (t = 0.5 mm) of designed AMM, at various frequencies, the reductions of SPL is observed in the range of 15.3 dBA to 73.9 dBA. Considering the numerical analysis and experimental studies finding, it is observed that the implementation of this developed acoustic metamaterials into a aircraft fuselage construction has effectively reduced noise levels in the aircraft cabin.</div></div>","PeriodicalId":55506,"journal":{"name":"Applied Acoustics","volume":"238 ","pages":"Article 110806"},"PeriodicalIF":3.4,"publicationDate":"2025-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143927383","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Portable in-situ multi-frequency sound calibrator with wide-band balanced armature driver and distortion suppression technology 采用宽带平衡电枢驱动和失真抑制技术的便携式原位多频校声仪

IF 3.4 2区物理与天体物理

Applied Acoustics Pub Date : 2025-05-10 DOI: 10.1016/j.apacoust.2025.110793

Xiaoli Zhang, Xiujuan Feng, Feng Niu, Longbiao He

{"title":"Portable in-situ multi-frequency sound calibrator with wide-band balanced armature driver and distortion suppression technology","authors":"Xiaoli Zhang, Xiujuan Feng, Feng Niu, Longbiao He","doi":"10.1016/j.apacoust.2025.110793","DOIUrl":"10.1016/j.apacoust.2025.110793","url":null,"abstract":"<div><div>With the increase of noise sources in industrial and living environments, the installation and application demand for outdoor sound level meters and other noise measurement instruments is constantly increasing. In order to facilitate the calibration of sound level meters, it is necessary to carry out research on portable in-situ multi-frequency sound calibrators. In this paper, wide-band balanced armature driver is adopted to replace the high and low frequency moving coil transducers that used in traditional multi-frequency sound calibrators, which would simplify the structure of coupler and driving circuit and improve the working stability of the multi-frequency sound calibrator. Based on the selected wide-band balanced armature driver, the optimization design of the coupler is carried out. Combined with the reference microphone, a multi-frequency sound calibrator integrated circuit system composed of a signal generator, a data acquisition unit, a central processing unit and a human–computer interaction interface is constructed. Experiments show that the total harmonic distortion (THD) of the sound waves at 94 dB-114 dB, 20 Hz-16 kHz meets the requirements of IEC 60942–2017 standard. Whereas the THD is significant at low frequency of 20 Hz-100 Hz, 84 dB. To improve this problem, this study introduced the harmonic notch method and PID algorithm to achieve THD of sound waves in the coupler of less than 2 %. The measurement results of THD were verified by an acoustic analyzer, which proved the effectiveness of the proposed distortion suppression technology. This technology can be widely applied to distortion suppression in other sound calibrators.</div></div>","PeriodicalId":55506,"journal":{"name":"Applied Acoustics","volume":"238 ","pages":"Article 110793"},"PeriodicalIF":3.4,"publicationDate":"2025-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143931352","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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 and performance analysis of bidirectional vibration ultrasonic transducer for wire bonding 金属键合用双向振动超声换能器的设计与性能分析

IF 3.4 2区物理与天体物理

Applied Acoustics Pub Date : 2025-05-10 DOI: 10.1016/j.apacoust.2025.110791

Yuxiang Li, MARIIA KIREEVA, Xicheng Liu, Zhili Long, Shuyuan Ye, Jianzhong Ju

{"title":"Design and performance analysis of bidirectional vibration ultrasonic transducer for wire bonding","authors":"Yuxiang Li, MARIIA KIREEVA, Xicheng Liu, Zhili Long, Shuyuan Ye, Jianzhong Ju","doi":"10.1016/j.apacoust.2025.110791","DOIUrl":"10.1016/j.apacoust.2025.110791","url":null,"abstract":"<div><div>Ultrasonic frequency, amplitude and vibration mode are the key factors affecting the stability and reliability of ultrasonic wire bonding. Conventional wire bonding is realized by ultrasonic transducer (UT) with single frequency and longitudinal vibration. To optimize the bonding process and achieve high-performance bonding joints, we propose an UT that utilizes two longitudinal vibration and one bending vibration mode, which realized by the full PZT and regional polarization PZT. By employing a step-type flexible structure, the flanges for three vibration modes are optimized at the same node position. To drive the UT, the amplifier module circuit with 39.98 times amplification and 130 kHz bandwidth is designed. Under the 9 kg·cm torque for assembling UT, the longitudinal vibration frequencies of the UT are 71.2 kHz and 122.9 kHz, and the bending vibration frequency is 43.1 kHz. The self-developed amplifier module is designed to drive the UT for both single and coupled vibration, and the test results show that the amplitude of the bending vibration is 7.49 µm at a driving voltage of 20 V, and the amplitudes of the 1st longitudinal vibration and the 2nd longitudinal vibration are 5.72 µm and 4.44 µm, respectively, which satisfy the amplitude requirements for wire bonding. Furthermore, the coupled vibration trajectory of the UT forms a parallelogram, and the vibration area can be adjusted by changing the amplitude. Experimental results have shown that the bending mode is excited by regionally polarized PZT, achieving sufficient vibration in both x/y directions while ensuring a small and lightweight structure. This provides a potential application solution for the new bonding method of wire bonding.</div></div>","PeriodicalId":55506,"journal":{"name":"Applied Acoustics","volume":"238 ","pages":"Article 110791"},"PeriodicalIF":3.4,"publicationDate":"2025-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143927382","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Quantum-assisted speech enhancement via a two-stage hybrid neural network 基于两阶段混合神经网络的量子辅助语音增强

IF 3.4 2区物理与天体物理

Applied Acoustics Pub Date : 2025-05-09 DOI: 10.1016/j.apacoust.2025.110792

Jicheng Yan , Ri-gui Zhou , Wenshan Xu , Yaochong Li , Xue Yang , Shizheng Jia

{"title":"Quantum-assisted speech enhancement via a two-stage hybrid neural network","authors":"Jicheng Yan , Ri-gui Zhou , Wenshan Xu , Yaochong Li , Xue Yang , Shizheng Jia","doi":"10.1016/j.apacoust.2025.110792","DOIUrl":"10.1016/j.apacoust.2025.110792","url":null,"abstract":"<div><div>Traditional deep neural networks (DNNs) demand substantial computational resources for single-channel speech enhancement, while quantum computers are constrained by limited qubit resources. To address these challenges, this study introduces HQCSE (Hybrid quantum-classical speech enhancement), a hybrid quantum-classical framework optimized for near-term quantum computers with low qubit usage. HQCSE incorporates innovative optimization strategies and a novel loss function that mitigates the sensitivity of traditional mean squared error (MSE) to outliers, thereby enhancing model robustness. A novel learnable quantum state embedding method, complemented by advanced feature preprocessing, significantly improves the efficiency of mapping classical data to quantum states compared to previous approaches. The framework's two-stage network design employs quantum neural networks in the preprocessing stage, reducing reliance on classical architectures like LSTM, and collaborates with LSTM in the post-processing stage to enhance information complementarity. Experiments on the TIMIT+ and VoiceBank+Demand datasets demonstrate that HQCSE achieves competitive performance with only half the parameters of baseline models and exhibits superior robustness on unseen datasets. Additionally, quantum noise resistance experiments confirm the framework's robustness against quantum circuit noise, highlighting its potential to advance quantum machine learning in speech enhancement applications.</div></div>","PeriodicalId":55506,"journal":{"name":"Applied Acoustics","volume":"238 ","pages":"Article 110792"},"PeriodicalIF":3.4,"publicationDate":"2025-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143923454","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

A track-before-detect algorithm for underwater acoustic DSSS signal by introducing Doppler observation 引入多普勒观测的水声DSSS信号检测前跟踪算法

IF 3.4 2区物理与天体物理

Applied Acoustics Pub Date : 2025-05-09 DOI: 10.1016/j.apacoust.2025.110737

Yang Yue , Dajun Sun , Cuie Zheng , Jian Xu

{"title":"A track-before-detect algorithm for underwater acoustic DSSS signal by introducing Doppler observation","authors":"Yang Yue , Dajun Sun , Cuie Zheng , Jian Xu","doi":"10.1016/j.apacoust.2025.110737","DOIUrl":"10.1016/j.apacoust.2025.110737","url":null,"abstract":"<div><div>Weak signal detection and tracking in the underwater acoustic (UWA) dual-spread channels are made difficult by the combined effects of the large ocean background noise fluctuations and extended, time-varying multipath. To account for these effects, we propose a track-before-detect (TBD) algorithm based on particle filter, incorporating Doppler observations within direct sequence spread spectrum (DSSS) systems to enhance signal tracking performance. In the proposed method, a multi-input TBD model with Doppler observation is developed, employing a joint likelihood function aligned with the measurement model to improve the distinction between weak signals and background noise, thereby improving weak signal detection probability. To further enhance the robustness of signal tracking, we introduce auxiliary variables to optimize particle sampling. The signal trajectory management strategies have also been developed to improve dynamic adaptability to variations in the number of multipath components. The performance of the proposed algorithm is confirmed through simulation analysis and shallow water horizontal channel experiments.</div></div>","PeriodicalId":55506,"journal":{"name":"Applied Acoustics","volume":"238 ","pages":"Article 110737"},"PeriodicalIF":3.4,"publicationDate":"2025-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143923455","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

A multifunctional acoustic emission enhancement meta-structure illustrated by the eccentric source 以偏心源为例的多功能声发射增强元结构

IF 3.4 2区物理与天体物理

Applied Acoustics Pub Date : 2025-05-09 DOI: 10.1016/j.apacoust.2025.110810

Yunzhong Lei, Jiu Hui Wu, Mengqi Yuan, Wei Li, Tengyue Zheng

引用次数: 0

Improving the accuracy of vibration reduction index measurements: Assessing and correcting parasitic airborne noise effects 提高减振指数测量的准确性：评估和纠正寄生空气噪声效应

IF 3.4 2区物理与天体物理

Applied Acoustics Pub Date : 2025-05-09 DOI: 10.1016/j.apacoust.2025.110775

Charlotte Crispin , Vincenzo Pettoni Possenti , Arne Dijckmans , Luca Barbaresi

{"title":"Improving the accuracy of vibration reduction index measurements: Assessing and correcting parasitic airborne noise effects","authors":"Charlotte Crispin , Vincenzo Pettoni Possenti , Arne Dijckmans , Luca Barbaresi","doi":"10.1016/j.apacoust.2025.110775","DOIUrl":"10.1016/j.apacoust.2025.110775","url":null,"abstract":"<div><div>The vibration reduction index <em>K<sub>ij</sub></em>, measured in accordance with ISO10848, is used to assess the attenuation of vibration transmissions at junctions between structural elements. In particular, it is used to compare the performance of different junctions or as input data for predictive calculations in the ISO12354 standards series.</div><div>However, this measurement can be affected by parasitic airborne noise generated by the excitation source and acoustic radiation from the excited wall, leading to an underestimation of <em>K<sub>ij</sub></em>, particularly for high-performance junctions such as those incorporating resilient strips.</div><div>This article presents the results of numerical simulations based on the finite element method and experimental measurements carried out on two CLT mock-ups in two laboratories, one in Italy and the other in Belgium. These analyses highlight the influence of parasitic airborne noise on <em>Kij</em> measurements and underline the importance of minimising it as much as possible during testing to ensure the reliability of the values obtained. If this is not possible, a correction based on the subtraction of the contribution of unwanted airborne noise can be applied to improve the accuracy of the results.</div><div>The conclusions of this study are generalizable to any type of construction element and also to in situ measurements. The issue of incorporating parasitic airborne transmission into the predictive calculations of ISO 12354 standards is therefore raised, particularly when the construction elements of junctions incorporating a resilient strip are not combined with a lining or floating screed.</div></div>","PeriodicalId":55506,"journal":{"name":"Applied Acoustics","volume":"238 ","pages":"Article 110775"},"PeriodicalIF":3.4,"publicationDate":"2025-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143923452","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Environmental sound classification using two-stream deep neural network with interactive time-frequency attention 基于交互时频注意的双流深度神经网络环境声音分类

IF 3.4 2区物理与天体物理

Applied Acoustics Pub Date : 2025-05-09 DOI: 10.1016/j.apacoust.2025.110794

Baojun Chen, Jianxin Peng

{"title":"Environmental sound classification using two-stream deep neural network with interactive time-frequency attention","authors":"Baojun Chen, Jianxin Peng","doi":"10.1016/j.apacoust.2025.110794","DOIUrl":"10.1016/j.apacoust.2025.110794","url":null,"abstract":"<div><div>Environmental sound classification (ESC) is crucial for understanding urban acoustic environments, and current classification methods cannot strike a balance between model performance and computational efficiency. In this paper, we propose a novel approach for modeling interactive time-frequency attention at different network levels using a two-stream deep neural network, namely ITFA-DNN. It uses two branches to capture time and frequency global dependencies at different layers of the network, respectively, introduces an inter-branch information interaction mechanism to enhance learning efficiency, and leverages depthwise separable convolutions to reduce model size. On two datasets, ESC-50 and UrbanSound8K, the proposed model achieves classification accuracy of 94.2% and 95.3%. It outperforms other models in ESC-50, and is comparable to state-of-the-art models in UrbanSound8K while reducing computational complexity by over 90%. Results from ablation experiments and visualizations further demonstrate that the proposed method effectively captures the global time-frequency dependencies of sounds in complex environments while improving computational efficiency. These highlight the superiority of the proposed method in environmental sound classification.</div></div>","PeriodicalId":55506,"journal":{"name":"Applied Acoustics","volume":"238 ","pages":"Article 110794"},"PeriodicalIF":3.4,"publicationDate":"2025-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143923453","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

An improved PDM modulation algorithm for power ultrasonic cleaning system 功率超声清洗系统中一种改进的PDM调制算法

IF 3.4 2区物理与天体物理

Applied Acoustics Pub Date : 2025-05-08 DOI: 10.1016/j.apacoust.2025.110722

Tianyu Peng, Shuyuan Ye, Xuezhi Zhang, Jianzhong Ju, Heng Zhao, Zhili Long, IEEE Member

{"title":"An improved PDM modulation algorithm for power ultrasonic cleaning system","authors":"Tianyu Peng, Shuyuan Ye, Xuezhi Zhang, Jianzhong Ju, Heng Zhao, Zhili Long, IEEE Member","doi":"10.1016/j.apacoust.2025.110722","DOIUrl":"10.1016/j.apacoust.2025.110722","url":null,"abstract":"<div><div>Aiming at the insufficient cleaning intensity of ultrasonic cleaning system under constant driving frequency and power conditions, we propose a current envelope modulation algorithm based on duty cycle and frequency modulation and the PDM (pulse-density modulation) algorithm. Firstly, a constant current matching model for ultrasonic array is established. Capture and COMSOL are utilized to simulate the working condition of a single transducer and the sound pressure in the water. The simulation result shows that the constant frequency and amplitude driving method will cause uneven sound pressure distribution, therefore a frequency and amplitude composite modulation algorithm is proposed. During the driving test, it is found that the current envelope is unstable and inconsistent. Therefore, we prove an amplitude control method based on incremental expert PI (Proportional-Integral). Contrast experiments of aluminum foil corrosion, sound pressure test and debris stripping test are carried out to verify that the algorithm modulation method can provide higher cleaning intensity and fineness than the constant frequency and amplitude method and the capacitor modulation method when driving ultrasonic cleaning arrays. Compared with no PI algorithm, the consistency of the current envelope is improved by 93%, 33% and 50% respectively under no load, light load and full load conditions. The experimental results show that the proposed expert PI modulation can improve the envelope consistency and the stability of the system.</div></div>","PeriodicalId":55506,"journal":{"name":"Applied Acoustics","volume":"238 ","pages":"Article 110722"},"PeriodicalIF":3.4,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143918543","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

The acoustics of 16th-century Jesuit churches in Andalusia: Latin cross plans following the model of Il Gesù 16世纪安达卢西亚耶稣会教堂的声学效果：以Il Gesù为模型的拉丁十字架计划

IF 3.4 2区物理与天体物理

Applied Acoustics Pub Date : 2025-05-08 DOI: 10.1016/j.apacoust.2025.110774

J. León, E. Alberdi, P. Bustamante, M. Galindo

{"title":"The acoustics of 16th-century Jesuit churches in Andalusia: Latin cross plans following the model of Il Gesù","authors":"J. León, E. Alberdi, P. Bustamante, M. Galindo","doi":"10.1016/j.apacoust.2025.110774","DOIUrl":"10.1016/j.apacoust.2025.110774","url":null,"abstract":"<div><div>Following the Council of Trent, profound changes were observed in ecclesiastical architectural space as a result of the new spirit infused into the Catholic Church by the Counter-Reformation. The Jesuit mother church, Il Gesù, contributed to the consolidation of the model of the single nave church, eliminating the aisles and reducing the size of the transept. This architectural model was disseminated in step with the expansion of the Society. The churches of Santa Catalina (Cordoba), La Anunciación (Seville), and La Encarnación (Marchena, Seville) provide emblematic examples of the model adopted by the Society of Jesus in the second half of the 16th century in Andalusia. The typological, geometric, and material similarities displayed by these churches enable a common analysis of the sound field, to be carried out through <em>in-situ</em> acoustic measurements and simulations. The study of different source positions in similar models enables the determination of the optimal source and receiver configurations. It was found that the position on the main altar, coinciding with the position of the priest in the Tridentine rite, does not facilitate the perception of the sound field, except in the positions in the high tribunes. When the source is under the dome of the transept, the sound field evaluation is more favourable. Conversely, a comparative analysis of churches considered to be ’twins’, St Catalina and La Anunciación, has shown the impact that the interior cladding of these spaces has on the perception of their sound field.</div></div>","PeriodicalId":55506,"journal":{"name":"Applied Acoustics","volume":"238 ","pages":"Article 110774"},"PeriodicalIF":3.4,"publicationDate":"2025-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143923449","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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