An environment adaptive gesture recognition system based on visible light by Zhu WANG, Hualei ZHANG, Qianhong HU, Zhiwen YU

“…Gesture-based human-machine interaction is becoming more and more important, which can provide users with a better experience in scenarios such as video games and virtual reality.In recent years, researchers have explored different sensing technologies to facilitate gesture recognition, including RF signal, acoustic signal, etc.Compared with these approaches, visible light-based gesture recognition is a more pervasive option.The basic principle is that different gestures will produce unique shadow patterns as they block the visible light, and gesture recognition can be achieved by capturing shadow changes through photoelectric sensors.To address the environment-dependent problem faced by existing solutions, a digit gesture recognition system was designed based on the photoelectric sensor array.In particular, by modeling recordings of the sensor array as images, the temporal and spatial correlation between different sensor recordings was discovered.An environment adaptive gesture recognition method was designed based on CNN-RNN by fusing the spatio-temporal features.To verify the effectiveness of the proposed method, a prototype gesture recognition system was designed, named Vi-Gesture.Experimental results show that the proposed method outperforms baselines by more than 10% in recognition accuracy.…”
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Improving the Validity of Squeeze Film Air-Damping Model of MEMS Devices with Border Effect by Cheng Bai, Jin Huang

“…The viscous and inertial losses with real values and image values acoustic impedance are all included in the model. These models reduced the time consumption while giving satisfactory result. …”
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Co-speech gestures influence the magnitude and stability of articulatory movements: evidence for coupling-based enhancement by Karee Garvin, Eliana Spradling, Kathryn Franich

“…Our results are consistent with work in language acquisition and speech-motor control suggesting that synchronizing speech to gesture can entrain acoustic prominence.…”
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A method of synthetic speech spoofing detection using constant Q modulation envelope by Jia XU, Zhihua JIAN, Honghui JIN, Chao WU

“…In response to the low accuracy of synthetic speech spoofing detection based on traditional acoustic feature parameters, poor detection performance for unknown types of synthetic speech, and performance degradation in noisy environments, a method for detecting spoofing synthetic speech was proposed using constant Q modulation envelope (CQME) .The motivation of the method was from the fact that the temporal envelope of speech contained abundant information and there was a big difference in detail between the envelope of synthetic speech and genuine speech.The modulation envelope spectrum of speech was obtained by employing constant Q transform (CQT), and the root mean square of each frequency component was calculated to derive the CQME feature vector.And then the CQME feature vector was used to train the random forest classifier for discriminating genuine speech from spoofing synthetic speech.Experimental results demonstrate that the random forest trained with CQME features achieves high detection performance on the ASVspoof 2019 dataset and exhibites good detection efficacy for unknown types of synthetic speech.Furthermore, the proposed method shows high detection performance even under various noise conditions, having excellent noise robustness.…”
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A classroom study on the perception and production of Basque sibilant fricatives by native speakers of English by Ander Beristain

“…Basque has three sibilant fricatives: lamino-alveolar (/s̻/), apico-alveolar (/s̺/), and pre-palatal (/ʃ/) sounds. Acoustically, the first two sounds share similarities with English /s/ and /ʃ/, respectively. …”
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Employing the Waves to Measure Longitudinal Residual Stresses in Different Depths of a Stainless Steel Welded Plate by Yashar Javadi, Sergej Hloch

“…Ultrasonic stress measurement is based on the acoustoelasticity law which presents the relationship between the stress and acoustic wave velocity in engineering materials. The technique uses longitudinal critically refracted () waves that travel parallel to the material surface. …”
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Automatic detection of expressed emotion from Five-Minute Speech Samples: Challenges and opportunities. by Bahman Mirheidari, André Bittar, Nicholas Cummins, Johnny Downs, Helen L Fisher, Heidi Christensen

“…Herein we describe an automated machine learning approach for determining the degree of warmth, a key component of EE, from acoustic and text natural language features. Our dataset of 52 recorded interviews is taken from recordings, collected over 20 years ago, from a nationally representative birth cohort of British twin children, and was manually coded for EE by two researchers (inter-rater reliability 0.84-0.90). …”
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The Analysis and Critique of the French Phonetics by Mohamad-Hossein Otroshi

“…Considering the scientific developments in the field of foreign language teaching, linguistics, and in particular phonetics (such as verbo-tonal method and acoustic phonetics based on the use of technology), this textbook, even in the eighth edition, has failed to keep pace with the current trends in the field and could not fulfill the needs of French language teaching and learning in the context of Iran.…”
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A Game Theoretic Sensor Resource Allocation Using Fuzzy Logic by Stephen C. Stubberud, Kathleen A. Kramer

“…The type-2 fuzzy logic is employed in the case of acoustical sensor tracking accuracy degradation, while the condition-based membership functions are used to adapt to different conditions, such as environmental conditions and sensor performance degradation, over time. …”
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Space-time division cluster DoA estimation algorithm based on UWA spread spectrum signal by Feng ZHOU, Baosheng ZHANG, Wenbo ZHANG

“…To solve the problems of poor stability, low resolution, and performance degradation under low signal-to-noise ratio (SNR) of the direction of arrival (DoA) estimation, a space-time division cluster (STDC) DoA estimation algorithm was proposed for under water acoustic (UWA) spread spectrum signal.The idea of the time-frequency two-dimensional search was used to combine the conventional beamforming with the spread spectrum sequence, set the angle interval to search the incidence angle and the arrival delay of the spread-spectrum signal, and increased the spatial spectrum to the delay angle spectrum, which kept the high resolution.STDC-DoA estimation can be anti-interference and stable operation under low SNR by using the characteristics of spread spectrum sequence.Finally, through simulation and pool experiment, it was proved that compared with the traditional DoA estimation algorithm, the proposed algorithm has better performance in anti-interference, resolution, and anti-noise.Meanwhile, the proposed algorithm does not need signal source number estimation and angle prediction and has more robust performance.…”
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Vibroacoustic Analysis of a Rectangular Enclosure Bounded by a Flexible Panel with Clamped Boundary Condition by Yuan Wang, Jianrun Zhang, Vanquynh Le

“…Thus, this paper is dedicated to the study of the effect of structural-acoustic coupling on the properties of a panel-enclosure system, which consists of an enclosure with a clamped panel. …”
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Speaker verification method based on cross-domain attentive feature fusion by Zhen YANG, Tianlang WANG, Haiyan GUO, Tingting WANG

“…Aiming at the problem that the lack of structure information among speech signal sample in the front-end acoustic features of speaker verification system, a speaker verification method based on cross-domain attentive feature fusion was proposed.Firstly, a feature extraction method based on the graph signal processing (GSP) was proposed to extract the structural information of speech signals, each sample point in a speech signal frame was regarded as a graph node to construct the speech graph signal and the graph frequency information of the speech signal was extracted through the graph Fourier transform and filter banks.Then, an attentive feature fusion network with the residual neural network and the squeeze-and- excitation block was proposed to fuse the features in the traditional time-frequency domain and those in the graph frequency domain to promote the speaker verification system performance.Finally, the experiment was carried out on the VoxCeleb, SITW, and CN-Celeb datasets.The experimental results show that the proposed method performs better than the baseline ECAPA-TDNN model in terms of equal error rate (EER) and minimum detection cost function (min-DCF).…”
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Intravascular Lithotripsy for Underexpanded Stent in Heavily Calcified Coronary Artery Disease by Tejas Raxwal, Cauvery Balhara, Dipak Parekh

“…Intravascular lithotripsy (IVL) by delivering acoustic pressure waves modifies calcium plaque that improve vessel compliance resulting in optimizing stent deployment. …”
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Multicarrier Spread Spectrum Communication Scheme for Cruising Sensor Network in Confined Underwater Space by Yuan Wang, Zhoumo Zeng, Yibo Li, Jinsheng Zhang, Shijiu Jin

“…Although underwater acoustic communication has been widely researched due to the growing demands from ocean development and marine research, communication in confined underwater space is an unexplored domain as most research focuses on communication in spacious water areas. …”
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Neural processing of naturalistic audiovisual events in space and time by Yu Hu, Yalda Mohsenzadeh

“…Our findings reveal early asymmetrical cross-modal interaction, with acoustic information represented in both early visual and auditory regions, while visual information only identified in visual cortices. …”
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Research on the Influence of Rotational Speed on the Noise of V-ribbed Belt Three-wheel Drive System by Xuecheng Zhang, Zhendong Jiang, Yaochen Shi, Tianxiang Zhao

“…In order to study the influence of speed on the noise level of the V-ribbed belt three-wheel drive system，taking the 6PK V-ribbed belt as an example，a noise test device for the three-wheel drive system of the V-ribbed belt is built based on the acoustic array principle，and the time-domain signal and noise sound pressure distribution cloud diagram of the sound pressure in the transmission system of three wheels at different speeds are obtained. …”
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Complexity: a new paradigm for fracture mechanics by A. Carpinteri, S. Puzzi

“…Further examples will deal with criticality in the acoustic emissions of damaged structures and with scaling in the time-to-failure (Carpinteri et al. [9]). …”
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« L’étrangeté vocalique » dans quelques nouvelles de Flannery O’Connor et de Barry Hannah by Claudia Desblaches

“…Indeed, as Julia Kristeva argues in Le Langage, cet inconnu, there are “acoustic images” in both writers’ stories, which disturb representation and create a network of indeterminate referents. …”
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Du Bestiaire dans le théâtre de W.B. Yeats by Pierre Longuenesse

“…Later, in the Plays for Dancers, Yeats creates a different acoustic universe, mostly « acousmatic », in which animals are paradoxically the manifestations of the spiritual aspect of the natural world. …”
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Experiments on Detection of Voiced Hesitations in Russian Spontaneous Speech by Vasilisa Verkhodanova, Vladimir Shapranov

“…In this paper we address an issue of voiced hesitations (filled pauses and sound lengthenings) detection in Russian spontaneous speech by utilizing different machine learning techniques, from grid search and gradient descent in rule-based approaches to such data-driven ones as ELM and SVM based on the automatically extracted acoustic features. Experimental results on the mixed and quality diverse corpus of spontaneous Russian speech indicate the efficiency of the techniques for the task in question, with SVM outperforming other methods.…”
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