Applied Acoustics最新文献

{"title":"Unraveling the specificity of auditory learning through vibrato perception","authors":"Noam Amir ,&nbsp;Eitan Globerson ,&nbsp;Yael Zaltz","doi":"10.1016/j.apacoust.2025.110707","DOIUrl":"10.1016/j.apacoust.2025.110707","url":null,"abstract":"<div><div>In the realm of auditory perception, the interplay between musical expertise and discrimination abilities remains a subject of ongoing investigation. This study delves into this complex relationship by investigating the impact of distinct musical backgrounds on the discrimination of vibrato attributes. Vibrato is a periodic variation in frequency and intensity, which is possible to produce in certain musical instruments (e.g. violin but not piano). The experiment engaged three distinct participant groups: musicians who are experienced in playing with vibrato (i.e., vibrato-musicians, n = 10), musicians who do not incorporate vibrato in their regular playing (i.e., non-vibrato musicians, n = 10), and non-musicians (n = 10). Discrimination thresholds were assessed using a three-interval, two-alternative, forced choice adaptive procedure. The tasks encompassed pure-tone frequency discrimination, employing 1000 Hz as the reference frequency, and vibrato-related discrimination tasks using 1000 Hz and 440 Hz as the carrier tones, modulated sinusoidally at 6 Hz. The findings reveal that while both musician groups surpass non-musicians in the frequency discrimination task, the advantage in vibrato-related discrimination was exclusively demonstrated by vibrato-musicians. This discrepancy underscores the selective influence of musical training on specific auditory attributes. By elucidating the nuanced interactions between musical training and auditory acuity, this research advances our understanding of the complex mechanisms underlying auditory expertise and lays the groundwork for tailored auditory training programs.</div></div>","PeriodicalId":55506,"journal":{"name":"Applied Acoustics","volume":"235 ","pages":"Article 110707"},"PeriodicalIF":3.4,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143715132","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Cross-spectral phase method for time delay estimation in acoustic leak detection","authors":"Ndubuisi Uchendu,&nbsp;Jennifer M. Muggleton,&nbsp;Paul R. White","doi":"10.1016/j.apacoust.2025.110695","DOIUrl":"10.1016/j.apacoust.2025.110695","url":null,"abstract":"<div><div>This paper introduces a method for estimating time delays in acoustic/vibration leak signals within water distribution systems, using linear segmentation of the cross-spectral phase. The method applies linear regression to undistorted regions of the phase, automatically identified by a simple algorithm, to calculate the time delay. Simulation and experimental results demonstrate that the method accurately estimates time delays without the need for pre-filtering, even in the presence of multiplicative noise that distorts the cross-spectral phase—offering a significant improvement over correlation-based techniques. Furthermore, the method provides a confidence interval that quantifies the uncertainty in the estimated leak location, thereby enhancing the reliability of leak localisation.</div></div>","PeriodicalId":55506,"journal":{"name":"Applied Acoustics","volume":"235 ","pages":"Article 110695"},"PeriodicalIF":3.4,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143697459","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A dual-label-reversed ensemble transfer learning strategy for underwater target detection","authors":"Wenxia Bao ,&nbsp;Qunyan Ren ,&nbsp;Wenbo Wang ,&nbsp;Min Huang ,&nbsp;Zhongzhe Xiao","doi":"10.1016/j.apacoust.2025.110701","DOIUrl":"10.1016/j.apacoust.2025.110701","url":null,"abstract":"<div><div>This paper proposed DLR (Dual-Label-Reversed) Ensemble Learning Strategy, a universal underwater acoustic target detection strategy with a transfer learning architecture, which can ensemble two transferred target detection models to enhance the detection accuracy. An acoustic data feature extraction strategy is employed to extract comprehensive features ranging from time/frequency domain to dedicated auditory parameters. A target detection model transfer strategy is proposed to get original transferred model and DLR transferred model from source domain to target domain. Then, the final detection can be made by the DLR ensemble learning strategy, which ensemble the output of two transferred model. We evaluate the proposed strategies using real underwater acoustic signal data. Experimental results show that the proposed algorithm can achieve a detection accuracy comparable with that trained with 2000 samples using only 200 labeled samples.</div></div>","PeriodicalId":55506,"journal":{"name":"Applied Acoustics","volume":"235 ","pages":"Article 110701"},"PeriodicalIF":3.4,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143695909","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}

{"title":"Reverb hiding: A new framework for audio steganography","authors":"Ali Erdem Altınbaş ,&nbsp;Mehmet Zeki Konyar","doi":"10.1016/j.apacoust.2025.110696","DOIUrl":"10.1016/j.apacoust.2025.110696","url":null,"abstract":"<div><div>In the last decades, a lot of new approaches have been developed for audio steganography. However, most of these studies ignore musical hearing. In this paper, we proposed a new framework for hiding data in audio using the reverb effect, which is one of the time-dependent effects in music production. Reverb is an audio effect in music production that creates an artificial atmosphere that simulates what could be found in a natural setting such as a large hall, stadium, etc. The impulse response of the related environment is convolved with an audio file in a studio environment. This study proposes embedding secret data in audio signals with the reverb effect. The secret message is embedded into the impulse response of the natural environment and then the audio signal is reverbed with this impulse response. The original and reverberated audios are again blended for parallel processing, resulting in stego-audio. In the data extraction stage, firstly the fully reverberated audio is obtained from stego-audio which was blended with the original (dry) audio. Then, the reverberated audio file is deconvolved with the dry audio again, and the stego impulse response is obtained.</div><div>Existing studies of audio steganography such as echo hiding are common techniques used in music production but have a significant impact on hearing. The proposed reverb hiding is done with much more complex parameters, so the stego-audio is more compatible with real-life applications. The reverb-hiding achieves superior PSNR results for different sizes of the secret message. The proposed method evaluated in terms of oscillograms, frequency spectrum analysis, spectrograms, cepstrogram analysis, histogram analysis, and autocorrelation analysis. The experimental results are also compared with six different existing audio-tech methods. The proposed reverb-hiding method significantly impacts the trade-off between capacity and imperceptibility, as indicated by the results.</div></div>","PeriodicalId":55506,"journal":{"name":"Applied Acoustics","volume":"235 ","pages":"Article 110696"},"PeriodicalIF":3.4,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143686845","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}

{"title":"The effect of changes in the configuration of a slatted ceiling on reverberation and clarity in a room","authors":"Hyojin Lee,&nbsp;Daeup Jeong","doi":"10.1016/j.apacoust.2025.110693","DOIUrl":"10.1016/j.apacoust.2025.110693","url":null,"abstract":"<div><div>In architectural design, slat structures such as louvers or panels are extensively employed as finishing systems in both interior and exterior applications. Recently, their use in spaces where acoustics are important has significantly increased, broadening their functional scope. However, notable research gaps exist in evaluating the effects of slat structures on room acoustics, highlighting the need for fundamental data to support their multifunctional applications. This study investigated the effects of horizontally installed slat structures across the entire ceiling area of rooms using scale-model experiments. A 1/15 scale rectangular room was utilized, examining design variables such as the presence of slat structures, upper volume, installation height, slat width, distance, and angle. The effects on reverberation (<em>T</em>₃₀ and EDT) and clarity (<em>C</em>₅₀ and <em>C</em>₈₀) in the room below the slats were systematically measured and analyzed. Generally, installing slat structures shortens the room’s reverberation and increases clarity compared to conditions without slats. By increasing the upper volume, lowering the installation height of the slat structures, and using wider slat width and distance, significant differences in reverberation and clarity can be achieved. In addition, the slat angle should be oriented in a clockwise or counterclockwise direction rather than at 0° to enhance reverberation, clarity, and spatial distribution.</div></div>","PeriodicalId":55506,"journal":{"name":"Applied Acoustics","volume":"235 ","pages":"Article 110693"},"PeriodicalIF":3.4,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143686841","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}

{"title":"Stability analysis of ultrasonic bone cutting under dynamic loads","authors":"Anxing Zhang ,&nbsp;Linwei Wang ,&nbsp;Jingyu Wang ,&nbsp;Yu Liu ,&nbsp;Jinguang Li ,&nbsp;Yumeng Sun ,&nbsp;Shiwei Wang","doi":"10.1016/j.apacoust.2025.110690","DOIUrl":"10.1016/j.apacoust.2025.110690","url":null,"abstract":"<div><div>The ultrasonic bone scalpel (UBS) is widely used in surgical procedures due to its unique advantage of safety. A principal operational challenge is that the UBS lacks stability during the cutting process, often affecting the surgical quality. This paper proposes a novel cutting stability analysis method for the UBS and reveals its destabilization mechanism under dynamic load variations. We combine the control strategy of under the resonant frequency tracking (RFT) with the impedance characteristics of the UBS to construct a load stability model, which can solve the frequency response under dynamic load variations and predict the critical load for destabilization. In addition, the dynamic load carrying capacity of the UBS is tested experimentally to verify the validity of the proposed model. Compared to previous load carrying performance analysis methods for ultrasonic structures, the dynamic load stability analysis in this paper is closer to practical applications. This work complements the theory of ultrasonic cutting and is expected to promote the application of robotic bone cutting in surgery.</div></div>","PeriodicalId":55506,"journal":{"name":"Applied Acoustics","volume":"235 ","pages":"Article 110690"},"PeriodicalIF":3.4,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143686843","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}

{"title":"Low-frequency broadband sound absorption of the Helmholtz resonator–spiral metasurface","authors":"Guohao Chen ,&nbsp;Xiaoyang Zhang ,&nbsp;Heow Pueh Lee ,&nbsp;Zhiqiao Wang","doi":"10.1016/j.apacoust.2025.110698","DOIUrl":"10.1016/j.apacoust.2025.110698","url":null,"abstract":"<div><div>This study proposes an acoustic metamaterial featuring a Helmholtz resonator–spiral metasurface (HRSM) to effectively achieve low-frequency broadband sound absorption. A theoretical model is developed to predict the HRSM’s sound absorption performance, and it is validated by numerical simulations and acoustic impedance tube experiments. Results indicated that the spiral metasurface of the HRSM extended the depth of the Helmholtz resonator cavity compared to the Helmholtz resonator, causing the first sound absorption peak of the HRSM to shift to a lower frequency. Additionally, the spiral channels of HRSM impeded wave propagation in the second layer, shifting the second sound absorption peak to a lower frequency, as compared to the double layer Helmholtz resonator. Optimal design was explored further in terms of diameters and lengths of the necks in the upper and lower layers of the HRSM, by taking advantage of the additive nature of absorption peaks generated by distinct units. With a structural thickness of 52 mm, the HRSM achieved closed to 90 % continuous absorption within the frequency range of 270–580 Hz, demonstrating excellent broadband absorption capabilities. This study offers an effective feasible methodology for designing sub-wavelength low-frequency broadband absorption structures.</div></div>","PeriodicalId":55506,"journal":{"name":"Applied Acoustics","volume":"235 ","pages":"Article 110698"},"PeriodicalIF":3.4,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143686844","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}

{"title":"Linking Acoustic emission signals to fatigue crack growth in metallic Materials: A new approach for structural health monitoring","authors":"Jialin Cui ,&nbsp;Xianqiang Qu ,&nbsp;Chunwang Lv ,&nbsp;Jinbo Du","doi":"10.1016/j.apacoust.2025.110689","DOIUrl":"10.1016/j.apacoust.2025.110689","url":null,"abstract":"<div><div>The stability and lifespan prediction of metallic materials under high stress and harsh environments are critical issues in modern engineering structure design. This study aims to explore the acoustic emission (AE) characteristics of metallic materials under stress conditions through experimental and theoretical analysis. Fatigue tensile experiments were conducted to systematically analyze the AE signals of various metallic materials, and numerical models were developed to predict the AE response. The findings demonstrate that AE technology can identify typical signal characteristics of materials during the stress process, with a significant correlation between the number of AE events and the degree of damage, and can accurately locate damage positions. These insights reveal the intrinsic relationship between AE signals and material damage, highlighting the broad application prospects of AE technology in structural health monitoring. The results provide a theoretical foundation and practical guidance for the health monitoring of metallic materials, contributing to the safety and reliable operation of structures.</div></div>","PeriodicalId":55506,"journal":{"name":"Applied Acoustics","volume":"235 ","pages":"Article 110689"},"PeriodicalIF":3.4,"publicationDate":"2025-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143686842","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}

{"title":"Enhancing quality inspection of highly variant geared motors","authors":"Peter Wißbrock ,&nbsp;Lukas Koschek ,&nbsp;Zhao Ren ,&nbsp;Wolfgang Nejdl","doi":"10.1016/j.apacoust.2025.110687","DOIUrl":"10.1016/j.apacoust.2025.110687","url":null,"abstract":"<div><div>Quality inspection is an important step in industrial production to avoid early failures and customer complaints. Custom-built products are often produced in a high number of variants and a low number of instances per variant, which makes automation of quality inspection a difficult task. Today’s manual inspection is cost-intensive and error-prune. This paper introduces the unexplored problem setting of quality inspection of highly variant geared motors and provides a full concept solving this industrial sound analytics problem. To enable research on this important topic, we introduce the publicly accessible Lenze quality inspection dataset, named Lenze-QI* and highlight its special challenges and characteristics. In contrast to other existing datasets, it is fully real-world, and it includes the variants configuration that can be used in machine learning algorithms. It is further demonstrated that the problem setting cannot be solved via state-of-the-art methods but using our proposed two-step approach. First, three feature vectors from the domain of advanced signal processing are proposed. The best performing approach is based on psychoacoustics, while also the approaches using the logarithm envelope or deep learning in combination with optimized spectrogram parameters are still useful. Second, we introduce the conditional node type to be used in an isolation forest, taking the variant’s configuration as input. The resulting conditional isolation forest is a novel anomaly detection approach taking additional attributes into account. Overall, the best performance for Lenze-QI can be achieved by an ensemble of the three advanced signal processing approaches in combination with the novel conditional isolation forest. The state-of-the-art performance is overruled by an increase of 13% in the area under the receiver operating characteristic. We demonstrate that the quality inspection of geared motors can be automated despite many challenges.</div><div>*The dataset Lenze-QI can be downloaded following https://doi.org/10.5281/zenodo.13854459.</div></div>","PeriodicalId":55506,"journal":{"name":"Applied Acoustics","volume":"235 ","pages":"Article 110687"},"PeriodicalIF":3.4,"publicationDate":"2025-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143686750","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}

{"title":"Nonlinear ultrasonic testing of concrete damage based on the stress–strain relationship of concrete hysteresis in non-classical nonlinear models","authors":"Jianfeng Liu ,&nbsp;Mingjie Zhao ,&nbsp;Kui Wang ,&nbsp;Yongjiang Chen ,&nbsp;Yang Cheng ,&nbsp;Zhengqiang Fan","doi":"10.1016/j.apacoust.2025.110691","DOIUrl":"10.1016/j.apacoust.2025.110691","url":null,"abstract":"<div><div>In the context of applying nonlinear ultrasonic detection to concrete damage, the nonlinear coefficients derived from theoretical models are of paramount importance. This study incorporates the nonclassical nonlinear hysteresis stress–strain relationship of concrete materials into the wave equation, combines boundary conditions, employs perturbation methods, and derives the hysteresis nonlinear coefficients <em>δ</em>₁ and <em>δ</em>₂. Considering the existing classical nonlinear coefficient <em>β</em> and the clapping nonlinear coefficient <em>γ</em>, nonlinear ultrasonic tests were conducted on pre-cracked concrete. Upon analysis of the test results, it was observed that the overall trends of the three nonlinear coefficients exhibited an increase with crack length and a decrease with crack angle. A comparison of the damage characterization performance of the three coefficients reveals that both the classical and the clapping nonlinear coefficient exhibit fluctuations during the damage changes. Whereas, the hysteresis nonlinear coefficients are capable of consistently representing the trend of damage evolution. The hysteresis nonlinear coefficients not only respond sensitively to changes in concrete damage but also clearly represent the changing trend of damage with minimal fluctuations and high robustness. Consequently, they are more suitable for damage detection in concrete materials. Furthermore, this conclusion is validated in both microcrack and multi-crack scenarios.</div></div>","PeriodicalId":55506,"journal":{"name":"Applied Acoustics","volume":"235 ","pages":"Article 110691"},"PeriodicalIF":3.4,"publicationDate":"2025-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143686851","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}