Relevant bibliographies by topics / Ambient sound analysis

Academic literature on the topic 'Ambient sound analysis'

Author: Grafiati
Published: 8 June 2024

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Ambient sound analysis.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Journal articles on the topic "Ambient sound analysis":

1

Schwock, Felix, and Shima Abadi. "Summary of underwater ambient sound from wind and rain in the northeast Pacific continental margin." Journal of the Acoustical Society of America 153, no. 3_supplement (March 1, 2023): A97. http://dx.doi.org/10.1121/10.0018294.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
Analyzing underwater ambient sound from various sources such as ships, marine mammals, rain, and wind is crucial for characterizing the ocean environment. While efforts to analyze ocean ambient sounds have been ongoing since the 1940s, networks such as the Ocean Observatories Initiative (OOI) provide modern large-scale recording setups for a more in-depth analysis. Here we will summarize results from analyzing over 11,000h of wind generated ambient sound and 280 h of ambient sound during rain collected between 2015 and 2019 by two OOI hydrophones deployed in the northeast Pacific continental margin. The hydrophones record continuously at depths of 81 and 581 m with a sample rate of 64 kHz. Meteorological data are provided by surface buoys deployed near the hydrophones. We compare our results to data obtained from a large-scale recording setup in the tropical Pacific Ocean (Ma et al., 2005). In contrast to their results, we found that sound levels during rain in the northeast Pacific Ocean are highly dependent on the wind speed over a wide frequency range. This implies that large-scale distributed sound measurements are necessary to accurately characterize underwater ambient sound from wind and rain across the globe. [Work supported by ONR.]
2

Flynn, Elizabeth Allan, Kenneth N. Barker, J. Tyrone Gibson, Robert E. Pearson, Leo A. Smith, and Bruce A. Berger. "Relationships between Ambient Sounds and the Accuracy of Pharmacists' Prescription-Filling Performance." Human Factors: The Journal of the Human Factors and Ergonomics Society 38, no. 4 (December 1996): 614–22. http://dx.doi.org/10.1518/001872096778827314.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
Associations between ambient sounds and accuracy of pharmacists' prescription-filling performance in a pharmacy was studied. Pharmacists were videotaped as they filled prescriptions each workday for 23 days. Each filled prescription was inspected by the investigator. Deviations from the physician's written order were considered errors. Videotape analysis was used to detect unpredictable, predictable, uncontrollable, and controllable sounds. A within-subjects case control study design was employed to determine whether the frequency of ambient sounds was significantly different when prescriptions with errors, compared with those without errors, were filled. Loudness, in terms of equivalent sound levels (Leq) for each half hour, was analyzed for a relationship to dispensing error rate. A mean dispensing error rate of 3.23% was found. Unpredictable sounds, controllable sounds, and noise had a significant effect on pharmacists which resulted in a decreased dispensing error rate. These results suggest that the quality of pharmacists' performance is not adversely affected by ambient sound. As equivalent sound levels increased, the error rate increased to a point, then decreased.
3

Chapman, Ross. "Wind noise source level and Bio-Goose: Perspectives on Doug Cato’s contributions in ocean ambient noise." Journal of the Acoustical Society of America 154, no. 4_supplement (October 1, 2023): A132. http://dx.doi.org/10.1121/10.0023026.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
Doug Cato’s research has provided insights that form the basis of our understanding of ambient noise in the ocean. This paper focuses on only two aspects of ambient noise that are strongly linked to Doug’s work. One is source level of ambient sound due to local wind at the sea surface. Estimates of wind sound source level derived from noise measurements with vertical line hydrophone arrays are shown to be consistent with the levels for noise due to wind reported in the Cato curves—up to date relationships for levels of components of ambient noise over a wide frequency band. The second aspect revisits a curious sound that was recorded in waters around Australia and New Zealand some years ago. The sounds were believed to be generated by marine animals, but the type of creature was not identified at sea or in subsequent analysis. Owing to the limited bandwidth of the recordings, the sound was accordingly dubbed as Bio-Duck in New Zealand and Bio-Goose in Australia. Further characteristics of the sound are presented, along with evidence of a probable conversation between two speakers and an example of the Lombard effect in the communications.
4

Ragland, John, Alexander S. Douglass, and Shima Abadi. "Using distributed acoustic sensing for ocean ambient sound analysis." Journal of the Acoustical Society of America 153, no. 3_supplement (March 1, 2023): A64. http://dx.doi.org/10.1121/10.0018176.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
Distributed acoustic sensing (DAS) is a technique that utilizes the back scattering in fiber optic cables to densely sample the strain rate in both space and time. This technique has been widely demonstrated as a powerful tool for seismic sensing, but the efficacy of submerged, under-sea cables for ocean acoustic sensing remains underexplored. The ocean observatories initiative (OOI) conducted a distributed acoustic sensing experiment in November of 2021, where two of the fiber optic cables continuously recorded the strain rate for four days. In this talk, the ambient sound field recorded by the OOI DAS experiment will be explored. A statistical comparison of hydrophone measurements and DAS measurements will be presented. Additionally, the possibility of using ocean ambient sound techniques, such as ambient noise interferometry will be explored and compared to hydrophone analysis. [Work supported by ONR.]
5

Bahle, Gernot, Vitor Fortes Rey, Sizhen Bian, Hymalai Bello, and Paul Lukowicz. "Using Privacy Respecting Sound Analysis to Improve Bluetooth Based Proximity Detection for COVID-19 Exposure Tracing and Social Distancing." Sensors 21, no. 16 (August 20, 2021): 5604. http://dx.doi.org/10.3390/s21165604.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
We propose to use ambient sound as a privacy-aware source of information for COVID-19-related social distance monitoring and contact tracing. The aim is to complement currently dominant Bluetooth Low Energy Received Signal Strength Indicator (BLE RSSI) approaches. These often struggle with the complexity of Radio Frequency (RF) signal attenuation, which is strongly influenced by specific surrounding characteristics. This in turn renders the relationship between signal strength and the distance between transmitter and receiver highly non-deterministic. We analyze spatio-temporal variations in what we call “ambient sound fingerprints”. We leverage the fact that ambient sound received by a mobile device is a superposition of sounds from sources at many different locations in the environment. Such a superposition is determined by the relative position of those sources with respect to the receiver. We present a method for using the above general idea to classify proximity between pairs of users based on Kullback–Leibler distance between sound intensity histograms. The method is based on intensity analysis only, and does not require the collection of any privacy sensitive signals. Further, we show how this information can be fused with BLE RSSI features using adaptive weighted voting. We also take into account that sound is not available in all windows. Our approach is evaluated in elaborate experiments in real-world settings. The results show that both Bluetooth and sound can be used to differentiate users within and out of critical distance (1.5 m) with high accuracies of 77% and 80% respectively. Their fusion, however, improves this to 86%, making evident the merit of augmenting BLE RSSI with sound. We conclude by discussing strengths and limitations of our approach and highlighting directions for future work.
6

Wu, Xiaoqi. "Optimization of Ambient Acoustics in Los Angeles Restaurant by Material Selection." Highlights in Science, Engineering and Technology 61 (July 30, 2023): 192–99. http://dx.doi.org/10.54097/hset.v61i.10294.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
This paper explores the acoustic characteristics of Hai Di Lao Hotpot restaurant in the Los Angeles area and utilizes noise reduction technology to improve the acoustics of the restaurant in the modeling of ODEON software. First, 5 questions are designed to collect satisfaction level from eaters in the restaurant, and 12 different audio recordings are collected in the different locations of the restaurant. According to the analysis of results of questionnaire by Excel and decibel detection by Apple Watch, the improvement of acoustic environment is proven to be necessary to conduct in this restaurant. The collected audios tracks are then processed in the Audacity software to ensure that the sounds are close to sounds people heard in the restaurant as much as possible and the sound collection equipment (iPhone) won’t negatively affect the quality of audio too much. Then, an extant model in the library of ODEON software is chosen, and audios collected in the restaurant are inserted as audios for the chosen model. Some places in the model are also determined to place receivers. After that, by replacing original building materials in the model by materials that has better sound insulation or better sound concentration effect, the acoustic environment in the model is adjusted. By analysis provided by ODEON software, the audios after material adjustment are proven to be better with the change of building environment.
7

Allen, John S. "Ambient acoustic enviroment—Diurnal soundscapes." Journal of the Acoustical Society of America 152, no. 4 (October 2022): A270. http://dx.doi.org/10.1121/10.0016242.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
Soundscape ecology has emerged as an important technique for monitoring complex coastal environments. Spatial and temporal acoustic variability exists between different regions and habitats. The sound characteristics have been hypothesized to be related to the associated community’s diversity and health. The prominent sounds may originate from physical, biological, and anthropogenic sources. Biological sounds especially those at coral reefs locations may have seasonal, monthly and diurnal variations. Snapping shrimp noise can dominate the ambient noise background in these sub-tropical coastal regions. While seasonal variations of snapping shrimp sounds have been studied extensively, the diurnal variations across habitats are less understood. Ambient noise data from two sites on Oahu, Hawaii are investigated with respect to diurnal variations using both spectral and time series analysis. Motivations and inspirations from Dr. Lisa Zurk’s extensive work on passive acoustics are highlighted. In addition, Dr. Zurk made notable theoretical and numerical contributions to acoustic scattering research. Some recent studies on the scattering from gas bubbles in complex media are also outlined in tribute.
8

Chandel, Garima, Evance Matete, Tanush Nandy, Varun Gaur, and Sandeep Kumar Saini. "Ambient Sound Recognition using Convolutional Neural Networks." E3S Web of Conferences 405 (2023): 02017. http://dx.doi.org/10.1051/e3sconf/202340502017.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
Due to its many uses in areas including voice recognition, music analysis, and security systems, sound recognition has attracted a lot of attention. Convolutional neural networks (CNNs) have become a potent tool for sound recognition, producing cutting-edge outcomes in a variety of challenges. In this study, we will look at the architecture of CNNs, several training methods used to enhance their performance, and accuracy testing. The performance of the proposed sound recognition technique has been tested using 1000 audio files from the UrbanSounds8K dataset. The accuracy results obtained by using a CNN and Support Vector Machine (SVM) models were 95.6% and 93% respectively. These results portray the efficiency of using an advanced CNN architecture with five convolution layers and a versatile dataset like Urbansoundsd8K.
9

Howe, Bruce M., and Rex Andrew. "Early ocean ambient sound monitoring, precursor to soundscapes today, influenced by J. Nystuen." Journal of the Acoustical Society of America 153, no. 3_supplement (March 1, 2023): A97. http://dx.doi.org/10.1121/10.0018291.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
In the early 1990s, as the Acoustic Thermometry of Ocean Climate (ATOC) program was starting, simple statistics of ocean ambient sound were unknown. For instance, what fraction of time does the sound level at some frequency exceed a certain value? When the Cold War ended, US Navy SOSUS arrays became available for “dual use” science. At the Applied Physics Laboratory, University of Washington, we began to collect ambient sound data in 1994 from Navy arrays in the Pacific. Initial data spanning 2 years were presented by Curtis et al. [JASA (1999)]. Data and corresponding analyses were separated according to process, i.e., shipping, marine mammals, and wind, as well as for the total. This monitoring effort continued for nearly two decades as reported by Andrew et al. [JASA (2011)], with other collaborators involved (Metzger and Mercer). Throughout, J. Nystuen was always providing guidance and advice in the data analysis and interpretation of the ambient sound data, in fact influencing the first author as graduate students together. We review these early results and connect them to present day understanding and data collection efforts that reflect the status of Ocean Sound as an Essential Ocean Variable of the Global Ocean Observing System.
10

Meng, Chun Xia, Hao Mu, and Gui Juan Li. "Effect of Guide’s Acoustic Parameters on Vertical Directivity of the Marine Ambient Noise." Applied Mechanics and Materials 577 (July 2014): 1207–10. http://dx.doi.org/10.4028/www.scientific.net/amm.577.1207.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
The vertical directivity characteristic of ambient noise is one inherent characteristic of the ocean in shallow water. And it includes the information of guide’s acoustic characteristic information. The marine guide is composed of sea water; seabed and surface boundary, there into, the acoustic parameters of seabed are hardly obtained exactly. In this paper, the model of vertical directivity for ambient noise is established. Based on the ray theory of sound propagation, the influence of guide’s acoustic parameters which include sound speed, density and attenuation coefficient on vertical directivity of marine ambient noise is simulated. The results are propitious to analysis and command the characteristics of ambient noise, and valuable to accelerate the exertion of acoustic equipment performance.
More sources
You might also be interested in the extended bibliographies on the topic 'Ambient sound analysis' for particular source types:
Journal articles

Dissertations / Theses on the topic "Ambient sound analysis":

1

Turpault, Nicolas. "Analyse des problématiques liées à la reconnaissance de sons ambiants en environnement réel." Electronic Thesis or Diss., Université de Lorraine, 2021. http://www.theses.fr/2021LORR0108.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
Notre vie est constamment bercée par les sons ambiants. De l’eau qui coule dans notre douche aux bruits de notre clavier, les sons ambiants sont partout. Les humains sans pertes auditives reconnaissent inconsciemment les sons qui les entourent et prennent de nombreuses décisions en tenant compte des sons ambiants (réactions à des pleurs de bébé par exemple). L’analyse des sons ambiants de manière automatique est un problème difficile à résoudre en raison de la complexité des scènes sonores et de leur manque de structure apparente. Afin de reconnaître les événements sonores de façon automatique, on a généralement recours à des méthodes qui reposent sur l’utilisation de jeux de données contenant les événements que l’on souhaite reconnaître avec leur annotation. Cependant annoter ces données coûte cher. Dans cette thèse nous analysons les problèmes qui surviennent lors de l’analyse des sons ambiants en environnement domestique réel et les solutions qui permettent de réduire l’effort d’annotation
We are constantly surrounded by ambient sounds. From the water running in the shower to the sound of a keyboard, ambient sounds are everywhere. Humans unconsciously recognize ambient sounds them and take multiple decisions using the information provided by them in their everyday life (reaction to a baby crying for example). However, automatic ambient sound analysis is a difficult problem because of the complexity of the sound scenes and their lack of apparent structure. To recognize sound events automatically, we usually rely on methods requiring a dataset containing the sound events to be recognized and their labels. However, annotating such a dataset is expensive. In this thesis we study the problems appearing when analyzing ambient sounds in a real domestic environment and we study solutions to reduce the labeling effort
2

Pegoretti, Thaís dos Santos 1986. "Environmental and sound analysis of the acoustic treatment of vehicle compartments = Análise ambiental e sonora do tratamento acústico de habitáculos de veículos." [s.n.], 2014. http://repositorio.unicamp.br/jspui/handle/REPOSIP/265853.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
Orientadores: José Roberto de França Arruda, Pierre Lamary
Tese (doutorado) ¿ Universidade Estadual de Campinas, Faculdade de Engenharia Mecânica
Made available in DSpace on 2018-08-26T13:47:00Z (GMT). No. of bitstreams: 1 Pegoretti_ThaisdosSantos_D.pdf: 2527596 bytes, checksum: 4a887632523490eee648b59c0de7e4a2 (MD5) Previous issue date: 2014
Resumo: Este trabalho tem como objetivo desenvolver uma metodologia capaz de adicionar critérios ambientais à fase de pré-projeto de um tratamento acústico veicular. Essa integração foi realizada através de uma otimização multiobjetivo baseada em um algoritmo genético. Um caso real foi analisado com a metodologia proposta. Ele consiste em um painel acústico multicamadas aplicado em um automóvel de passeio. O método da matriz de transferência é usado para o cálculo do comportamento acústico do painel. Neste método é feita a hipótese simplificadora de painel de área infinita, o que permite um custo computacional muito menor do que modelos de elementos finitos. Para a modelagem de materiais poroelásticos, utiliza-se o modelo de Johnson-Champoux-Allard, que inclui os fenômenos de dispersão de energia resultante da interação térmica e viscosa entre as fases sólida e fluida. O custo computacional menor do modelo é essencial para a otimização. Foram estabelecidos como objetivos da otimização a curva de perda de transmissão desejada e os resultados da análise do ciclo de vida do painel. Uma curva de perda de transmissão em função de bandas de oitava foi estabelecida como um critério de desempenho acústico mínimo. Para os critérios ambientais, o impacto de um painel existente foi estabelecido como máximo. A análise do ciclo de vida quantifica o impacto do produto em relação a diversos aspectos. Na metodologia proposta três critérios foram selecionados inicialmente: aquecimento global, destruição de recursos abióticos e toxicidade da água doce. Finalmente, apenas um deles foi utilizado na otimização, o aquecimento global, pois os critérios máximos estabelecidos para os demais eram facilmente atingidos ao longo da otimização. A otimização multiobjetivos gera como resultado uma frente de Pareto com um conjunto de soluções, e cabe ao projetista escolher a melhor opção, analisando-a em relação ao impacto ambiental e a outros aspectos, tais como disponibilidade e custo
Abstract: This work aims at developing a methodology capable of adding environmental criteria to the pre-design of a vehicular acoustic treatment. This integration was accomplished through a multi-objective optimization based on a genetic algorithm. A real case study was analyzed with the proposed methodology. It consists of a multilayered acoustic panel applied in passenger vehicles. The transfer matrix method is used to calculate the acoustic behavior of the panel. In this method the panel area is infinite. It provides a lower computational cost than finite element models, which can take into account the real dimensions of the panel. The Johnson-Champoux-Allard model was used for poroelastic material modeling. It includes the energy loss generated by the viscous and the thermal interactions between the solid and the fluid media. The lower computational cost of the model is essential for the optimization. The desired acoustic transmission and results of the life cycle analysis of the panel were established as the optimization objectives. A transmission loss curve in octave bands was defined as a minimum noise performance criterion. For the environmental criteria, an existing panel behavior was established as the maximum. The life cycle assessment quantifies the product impact with respect to many aspects. In the proposed methodology, three criteria were initially selected: global warming, abiotic depletion, and fresh water aquatic ecotoxicity. Finally, only one of them was used in the optimization, the global warming, because the maximum values established for the other criteria were easily achieved during the optimization. The multi-objective optimization provides a Pareto front solutions set, and it is up to the designer to choose the best option, analyzing the solution set with relation to environmental impact and other aspects, such as availability and cost
Doutorado
Mecanica dos Sólidos e Projeto Mecanico
Doutora em Engenharia Mecânica

Books on the topic "Ambient sound analysis":

1

Washington (State). Dept. of Ecology. Ambient Monitoring Section., Puget Sound Ambient Monitoring Program., and Tetra Tech inc, eds. Puget Sound Ambient Monitoring Program 1989: Marine sediment monitoring. Bellevue, Wash: Tetra Tech, 1990.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
2

Puget Sound Ambient Monitoring Program., ed. Puget Sound Ambient Monitoring Program 1992: Marine sediment monitoring : data validation report. Olympia, WA: Washington State Department of Ecology, Ambient Monitoring Section, 1993.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
3

V, Partridge, and Washington (State). Dept. of Ecology., eds. Temporal monitoring of Puget Sound sediments: Results of the Puget Sound Ambient Monitoring Program, 1989-2000. Olympia, WA: Washington State Dept. of Ecology, 2005.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
4

V, Partridge, and Environmental Assessment Program (Wash.), eds. Temporal monitoring of Puget Sound sediments: Results of the Puget Sound Ambient Monitoring Program, 1989-2000. Olympia, WA: Washington State Dept. of Ecology, Environmental Assessment Program, 2005.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
5

Ecology, Washington (State) Department of. Puget Sound ambient monitoring program quality assurance reviews of chemical and bioassay analyses: 1990 field survey. Bellevue, Washington: PTI Environmental Services, 1991.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
6

McGlothin, Charles C. Ambient sound in the ocean induced by heavy precipitation and the subsequent predictability of rainfall rate. Monterey, California: Naval Postgraduate School, 1991.

Find full text
APA, Harvard, Vancouver, ISO, and other styles

Book chapters on the topic "Ambient sound analysis":

1

Shen, Jialie, Liqiang Nie, and Tat-Seng Chua. "Smart Ambient Sound Analysis via Structured Statistical Modeling." In MultiMedia Modeling, 231–43. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-27674-8_21.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Kafaei, Mohsen, Jane Burry, Mehrnoush Latifi, and Joseph Ciorciari. "Designing a Systematic Experiment to Investigate the Effect of Ambient Smell on Human Emotions in the Indoor Space; Introducing a Mixed-Method Approach." In Computational Design and Robotic Fabrication, 235–47. Singapore: Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-99-8405-3_20.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
AbstractStudies have indicated that built environments affect all aspects of human life such as emotion, perception, behavior, health, and well-being (Cooper et al. 2011). Built environments are formed from the combination and juxtaposition of visible and invisible environmental variables. In recent years, common techniques such as virtual reality, augmented reality, digital twins, and artificial intelligence have enabled researchers in the field of architecture and urban design to simulate environmental conditions to investigate the impacts of environmental variables on humans. However, the studies conducted in this field of human comfort are mostly focused on the impact of environmental variables such as form, temperature, humidity, and sound, and in fewer studies, up-to-date methods and technologies have been used to simulate and investigate the impact of smell on humans. Most of the studies that have investigated the effect of ambient smell on humans, carried out in the discipline of architecture and urban design, have used traditional tools and methods (questionnaire, interview, observation) rather than advanced technology and tools drawing on neuroscientific knowledge and technique to measure the effectiveness of the ambient smell on human. They have used unmasked scents or real-world environments rather than being able to simulate environmental conditions. This article highlights the significance and necessity of employing simulation methods to investigate the impact of environmental smells on humans. Additionally, it presents the methodology of an experiment for studying the effect of indoor environment smells (with a case study of an office environment in the initial phases) on human emotions, utilizing a mixed-method approach. Analysis of some parts of the data from this experiment showed that exposure to the fragrance of the jasmine flower pleasant (flower) and the odor of the rotten orange peel (unpleasant) can cause changes in the electroencephalography (EEG) power across different bands among participants.
3

Chattopadhyay, Budhaditya. "1 The First Sound and the Curiosity." In The Auditory Setting, 3–13. Edinburgh University Press, 2021. http://dx.doi.org/10.3366/edinburgh/9781474474382.003.0001.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
The introductory chapter consists of four broad sub-chapters that present a framework for understanding the topic, namely the mediation of the sonic environment, and defines ambient sound and ambience through their various connotations and associations. This introductory section examines the book’s context through a review of existing literature on research in the field. The book’s conceptual approach is clarified in terms of in-depth discussion of a number of keywords and concepts such as mediation, diegesis, mimesis, presence, soundscape theory, ambience, sound studies, digital aesthetics, through a historical analysis of relevant works. The chapter delineates how the investigation is drawn through the study of various generic and ordinary sites that have been recorded and (re)produced in film and media works. The chapter also underscores the methodology addressing the similarities and differences between ambient sound recordings made to reconstruct the site within the film production’s interior world and field recordings used in certain site-driven sound and media artworks. Relevant new knowledge is proposed about the extent to which sonic environments are mediated. From a practical standpoint, such knowledge challenges the idea of best practice in sound production. The book’s structure and methodology is also explained.
4

Chattopadhyay, Budhaditya. "5 Monaural Soundtracks and Recording (Sonic) Reality." In The Auditory Setting, 45–58. Edinburgh University Press, 2021. http://dx.doi.org/10.3366/edinburgh/9781474474382.003.0005.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
The second chapter titled Sonic trajectories consists of three broad sub chapters that investigate the technological trajectories of sound practices and conceptualises the use of ambient sound from optical recording to the contemporary digital realm. By historicising the developments in the use of ambient sound through different intersecting phases of optical recording and monaural mixing, magnetic recording and stereophonic mixing, digital sync recording and surround design, the second chapter demarcates, rationalises and historicises the primary eras of sound production. Each of these sub chapters mentions specific film and media art examples from global film and media as historical markers in sound production. The chapter also provides a comparative analysis of global film industries in their working with sound; and various concurrent practices that were emerging from local cultures despite colonial pressures and influence of the Hollywood norms and techniques. The chapter helps to put in context ambient sound use within a historical framework of American, European and Asian cinemas.
5

Chattopadhyay, Budhaditya. "8 Land, Field, Meadow." In The Auditory Setting, 87–91. Edinburgh University Press, 2021. http://dx.doi.org/10.3366/edinburgh/9781474474382.003.0008.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
The third chapter consists of nine smaller sub chapters that discuss relevant sequences from film and sound/media artworks where generic sites (e.g. land, field, meadow; forest, jungle; village, rural environment; indoors; riverbank, beach, island; street, public squares, urban neighbourhood; public transport; airport; underwater, outer space) are the specific settings for narration or the select sites for recording and documenting sound for site-aware artwork. Critical listening is employed to analyse relevant passages from a number of films and representative artworks developed from specific sites. The critical listening and reflective analysis of these artworks shed light on the artistic transformation of ambient sounds recorded from select sites producing what will be termed ‘manufactured presence’ and ‘poetic presence’ in the spatial experiences of films and media artworks, respectively. These works are studied thoroughly to understand the strategies employed in their production of ambient sound as a specific component evoking a sense of presence and embodied experience, whereby the rich sonic environments of the sites are mediated, transformed and modified to form augmented atmospheres that satisfy different storytelling and artistic production tastes and approaches.
6

Susič, David, Gregor Poglajen, and Anton Gradišek. "Machine Learning Models for Detection of Decompensation in Chronic Heart Failure Using Heart Sounds." In Ambient Intelligence and Smart Environments. IOS Press, 2022. http://dx.doi.org/10.3233/aise220063.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
Chronic heart failure (CHF) is a complex clinical syndrome characterised by the inability of the heart to provide sufficient perfusion to meet the body’s metabolic demands. It occurs primarily in the elderly and currently affects 64.3 million people worldwide. Heart failure is associated with significant morbidity and mortality as well as with prohibitive utilization of healthcare resources. Novel technologies that would improve patient management and reduce the burden of HF on healthcare resources are thus urgently needed. We assessed the performance of machine learning algorithms for predicting decompensation in CHF using heart sound data obtained by two different setups. The most accurate model was a decision tree classifier that achieved accuracy, precision, recall, F1 score, and area and the receiver operating curve of 0.896, 0.797, 0.812, 0.801, and 0.898, respectively. We also identified the most relevant predictor features extracted from different frequency bands of the recordings. Our analysis suggests that the low-frequency abnormal heart sounds do not play a critical role in detecting decompensation episodes in CHF patient cohort.
7

Linden, Jennifer F. "Sensory Representations in the Auditory Cortex and Thalamus." In The Cerebral Cortex and Thalamus, edited by Andrew J. King and Judith A. Hirsch, 229–38. Oxford University PressNew York, 2023. http://dx.doi.org/10.1093/med/9780197676158.003.0022.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
Abstract What are the similarities and differences between sensory representations in the auditory cortex and thalamus—and what do they imply about thalamocortical transformations in the auditory system? This chapter reviews studies that have addressed these questions by comparing auditory cortical and thalamic sound representations at the single-neuron and neuronal-population levels. The studies have used a diversity of stimulus sets and approaches: simple sounds to evaluate frequency tuning and modulation sensitivity; complex artificial sounds to estimate spectrotemporal receptive fields and nonlinear response functions; sound sequences to measure effects of stimulus probability and patterning; and natural sounds to examine responses to ecologically relevant vocalizations and ambient noise. However, key findings converge to the conclusion that, like auditory brainstem nuclei and midbrain structures, the auditory thalamus and cortex are specialized for analysis of temporal information in sensory signals over multiple timescales.
8

Chattopadhyay, Budhaditya. "20 Emerging Trends and Future Directions." In The Auditory Setting, 175–86. Edinburgh University Press, 2021. http://dx.doi.org/10.3366/edinburgh/9781474474382.003.0020.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
From the outset, this book has focused on a comparative analysis of the auditory setting’s formation in film and audiovisual media artworks using ambient sounds gathered from actual sites and their sonic environments. However, the findings of the book can also be considered more broadly to inform the potential future of global sound production in which various forms and formats of expression coalesce. Film sound and media art practices may intersect through intensive technological convergence, aesthetic inclusivity, a sense of democratisation and artistic freedom. A sense of inclusivity and creative freedom could trigger the production of new, hybrid artistic forms enriched with experimentation, which could subvert former and current industrial norms and their limitations....
9

Klippel, Wolfgang. "Modeling and Testing of Loudspeakers Used in Sound-Field Control." In Advances in Fundamental and Applied Research on Spatial Audio [Working Title]. IntechOpen, 2022. http://dx.doi.org/10.5772/intechopen.102029.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
This chapter describes the physical modeling and output-based measurement of loudspeakers, essential hardware components in sound-field control. A gray box model represents linear, time-variant, nonlinear, and non-deterministic signal distortions. Each distortion component requires a particular measurement technique that includes test stimulus generation, sound pressure measurement at selected points in 3D space, and signal analysis for generating meaningful metrics. Near-field scanning measures all signal components at a large signal-to-noise ratio with minor errors caused by loudspeaker positioning, air temperature, room reflections, and ambient noise. Holographic postprocessing based on a spherical wave expansion separates the direct sound from room reflections to assess the linear output and signal distortion. New metrics are presented that simplify the interpretation of the loudspeaker properties at single points, sound zones, and over the entire sound-field.
10

Epstein, Hugh. "An Audible World." In Hardy, Conrad and the Senses, 139–92. Edinburgh University Press, 2019. http://dx.doi.org/10.3366/edinburgh/9781474449861.003.0005.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
The chapter opens by contrasting the human capacities for audition as opposed to vision, and the qualities conveyed by sound as opposed to those by light. Despite the general acceptance of wave theory, from the nineteenth century through to today issues of auditory location, transmission and reception remain contested. The ‘auditory scene analysis’ conducted by the novels in this study sees/hears them as participating in this ontological and epistemological uncertainty. Both The Return of the Native and ‘Heart of Darkness’ powerfully evoke densely enveloping closed systems that are examined in terms of their circulating sounds, ‘acoustic pictures’ raised upon the air by sighs in Hardy and whispers in Conrad. Whilst the discussion of ‘Heart of Darkness’ shows that it is an individual voice, and particularly its ‘cry’, which provides a guiding thread for Marlow, when the chapter moves on to sound in Nostromo it is the ambient noise of a historically evolving modernity that carries the theme of the reach of ‘material interests’. Sounds, conceived as units of shock, provide the agitated fabric of this novel of jolts and collisions.

Conference papers on the topic "Ambient sound analysis":

1

Shivaanivarsha, N., A. Sriram, S. Saravaanan, and V. Rajesh. "Respiratory Sound Analysis for Lung Disease Diagnosis." In 2023 International Conference on Ambient Intelligence, Knowledge Informatics and Industrial Electronics (AIKIIE). IEEE, 2023. http://dx.doi.org/10.1109/aikiie60097.2023.10390099.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Mathew, Kuruvilla, Biju Issac, and Tan Chong Eng. "Ambient noise analysis on sound for use in wireless digital transmission." In 2013 8th International Conference on Information Technology in Asia (CITA). IEEE, 2013. http://dx.doi.org/10.1109/cita.2013.6637559.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Lee, Cheolhwan, Ho-Min Kang, YeongJun Jeon, and Soon Ju Kang. "Ambient Sound Analysis for Non-Invasive Indoor Activity Detection in Edge Computing Environments." In 2023 IEEE Symposium on Computers and Communications (ISCC). IEEE, 2023. http://dx.doi.org/10.1109/iscc58397.2023.10217851.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Wall Emerson, Robert, Dae Shik Kim, Koorosh Naghshineh, and Kyle Myers. "Blind Pedestrians and Quieter Vehicles: How Adding Artificial Sounds Impacts Travel Decisions." In ASME 2012 Noise Control and Acoustics Division Conference at InterNoise 2012. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/ncad2012-0221.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
This research examined the influence “quiet” (e.g., hybrid and electric) vehicles may have on the ability of blind pedestrians to perform common orientation and mobility tasks under low vehicle speed conditions. The research involved blind participants detecting forward approaching vehicles and approaching backing vehicles, deciding whether a vehicle coming from behind or from the front but across an intersection would continue to go straight or turn across the intended path of travel of a pedestrian seeking to cross a street (i.e., a pathway discrimination task), and taking parallel and perpendicular alignment from passing traffic. Participants included some with normal hearing and some with impaired hearing. Testing was conducted on a public roadway and a parking lot in Kalamazoo, Michigan under ambient sound conditions consistent with a typical urban travel environment. Conditions involved evaluating internal combustion engine (ICE) Chevrolet Malibu and a set of hybrid Chevrolet Volts capable of operating in a “quiet” mode (referred to as Electric Mode or EM) or operating in EM but augmented with one of five different artificially-generated sounds emanating out of a front-bumper mounted speaker. All of the artificial sounds generally performed better against the baseline the Chevrolet Volt EM than the Chevrolet Malibu. This suggests that, to some extent, putting any one of these artificial sounds on a hybrid or electric vehicle may improve pedestrian performance on the measures examined relative to not adding any sound at all. One sound (sound 5) did not outperform against the Chevrolet Malibu in any measure and had the fewest instances of outperforming the Chevrolet Volt EM. Of the remaining 4 sounds, two sounds outperformed both the Chevrolet Malibu and the Chevrolet Volt EM on several measures. Against the Chevrolet Malibu, sound 2 was slightly better in detection distance and crossing margin while sound 4 was better in the path discrimination tasks. The two sounds were equivalent on the alignment tasks. The pathway discrimination task reflects one of the more potentially threatening situations in which a blind pedestrian might encounter a quiet vehicle (e.g., turning to cross the pedestrian’s path). Sound 4 performed much better than sound 2 on this measure, making it the most effective of all the artificial sounds examined. While these two sounds were equitable in the right-straight task, sound 4 showed almost half as many missed vehicle surges (i.e., forward movement from a stop) and 1/4 the rate of missed paths and incorrect judgments. Vehicle sound condition did not impact participants’ alignment. Normal hearing participants performed significantly better than hearing impaired participants on this task, but not as well as would be expected based on previous data [1]. These results support the potential for artificially-generated sounds to improve the ability of blind pedestrians to detect approaching vehicles relative to what is being achieved with ICE vehicles. Regression analysis of the detection data supports previous results that sound energy in the 500 to 1000 Hz range is important for detection. However, the analysis indicates it is not that energy in this region that makes the signal more noticeable, but that energy in this region in the ambient environment hinders detection. Previous findings in low ambient conditions showing a predictive value for the amplitude modulation of an artificial sound were not supported in these data.
5

Albers, Albert, Markus Dickerhof, and Wolfgang Burger. "Condition-Monitoring Based on Structure-Borne Ultrasound Analysis." In ASME 2008 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2008. http://dx.doi.org/10.1115/detc2008-49408.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
Recent results in condition monitoring of machine elements by acoustic emission analysis are presented. A special method based on the evaluation of structure-borne noise emissions in the ultrasonic range is described. The ultrasound-signals caused by friction processes are captured by a broadband piezoelectric sensor and analyzed subsequently. The method has proven to be suitable for detecting the occurrence of friction between solid objects in a very reliable way. This leads to a variety of possible applications wherever occurrence of solid body friction has to be considered as an indication of failure or wear. In addition to tribometer tests, experiments with sliding bearings and slide ring seals are presented exemplarily. In both cases promising results were achieved. The significant difference of the presented method compared to other sound-based methods is in the nature of the analyzed signals: Harmonic waves of audible sounds or percussion-type stimulations are not evaluated but the portion of friction sounds emerging in the ultra-sonic range beyond audible frequencies. These friction sounds are widely unaffected by ambient noise and other sources of interference.
6

Liu, Chang, Xu Mao, Chang Wang, Juan Heredia Juesas, and Jose Angel Martinez-Lorenzo. "Real-Time Sound Source Localization Using a Parabolic Reflector." In ASME 2021 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/imece2021-70385.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
Abstract Contrary to the active detection methods, the passive sound source localization technologies only rely on the differences among the signals recorded by different receivers to localize the object generating the sound wave, without the knowledge of the sound source profile and excitation time. Time domain investigation methods have been widely applied in the analysis of sound source tracking, which greatly suffers from the high ambient noise problems. Instead, this paper applies an imaging method based on frequency domain cross-coherence (FDCC) operation to reconstruct the source to alleviate the effect of noise. The experimental results show the reliability of this method to recover the source in 3D. Moreover, a parabolic reflector is proposed to further increase the measurement amplitude and signal to noise ratio. The FDCC method successfully localizes the source even if the propagation path of the sound wave is disturbed by the reflector.
7

Won Gu, Ji, Ji-Hoon Hwang, Ryun-Seok Oh, and Jun-Ho Choi. "Analysis of Pre-evacuation Time and EEG for Fire Alarm when Wearing ANC Earphones." In 13th International Conference on Applied Human Factors and Ergonomics (AHFE 2022). AHFE International, 2022. http://dx.doi.org/10.54941/ahfe1002638.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
With the development of mobile technology and the progress of an Untact society, the number of people who listen to lectures or music in various urban environments is increasing. In response to such an increase in demand, Active Noise Canceling(ANC) earphones that remove ambient background noise or static and also enable stable listening have been developed, and the earphones are enjoying great popularity. However, these ANC earphones can put the user in a dangerous situation at any time because they block even major alarm sounds such as a car horn or fire alarm. In this study, 10 men and women in their 20s, who frequently use ANC earphones, were asked to listen to music by wearing ANC earphones without prior notification of the fact that a fire alarm sound was transmitted. After that, the fire alarm bell or emergency broadcast sound was randomly generated for them to recognise the fire situation, and the time it took to start evacuation was measured. And in all these processes, EEG was simultaneously measured to analyse changes in emotions such as arousal responses felt by the experimental participants As a result of the experiment, it was found that the case of transmitting an emergency broadcast made the participants start evacuation approximately 23 seconds faster than the case of sounding the fire alarm bell. However, as a result of correlation analysis with EEG values indicating arousal responses such as tension, irritability, and nervousness, the significance probability(p-value) was 0.825, indicating that there is no statistically significant correlation. Therefore, it was found that the participants’ awareness of the fire alarm sound decreased when wearing ANC earphones regardless of the types of the fire alarm whether it was an alarm bell or an emergency broadcast.
8

Keske, Justin D., and Jason R. Blough. "Calculating the Speed of Sound in an Engine Exhaust Stream." In ASME 2008 Noise Control and Acoustics Division Conference. ASMEDC, 2008. http://dx.doi.org/10.1115/ncad2008-73031.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
The actual speed of sound in the exhaust medium of an engine plays an extensive role in the noise attenuation characteristics of the engine’s muffler system. For 2-stroke engine applications, the speed of sound in the exhaust gas also greatly affects how the expansion chamber is tuned to maintain maximum power output. The combustion process in an engine creates exhaust gases that differ from the composition of atmospheric air. This difference in chemical composition and humidity content yield a different density and ratio of specific heats. These ultimately yield different sound speeds in the exhaust gases compared to atmospheric air. This paper performs a full chemical analysis of the combustion process in an internal combustion gasoline engine to yield the chemical composition of the of the exhaust gases. An algorithm is written to calculate the speed of sound in the exhaust stream. The inputs of the algorithm include measurements of temperature, pressure, and relative humidity of the ambient intake air, specification of the gasoline/ethanol fuel blend, and a direct measurement of the exhaust gas temperature. Comparisons are made between sound speed approximation calculations based on air to calculations obtained by the algorithm.
9

Yamade, Yoshinobu, Chisachi Kato, Hayato Shimizu, and Takahiro Nishioka. "Large Eddy Simulation and Acoustical Analysis for Prediction of Aeroacoustics Noise Radiated From an Axial-Flow Fan." In ASME 2006 2nd Joint U.S.-European Fluids Engineering Summer Meeting Collocated With the 14th International Conference on Nuclear Engineering. ASMEDC, 2006. http://dx.doi.org/10.1115/fedsm2006-98303.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
A final objective of this study is to develop a tool to predict aeroacoustics noise radiated from a low-speed fan, and its reduction. Aeroacoustics noise that is radiated from a low-speed axial flow fan, with a six-blades rotor installed in a casing duct, is predicted by an one-way coupled analysis of the computation of the unsteady flow in the ducted fan and computation of the sound radiated to the ambient air. The former is performed by our original code, FrontFlow/blue, which is based on Large Eddy Simulation (LES). The latter is performed by using a commercial code, SYSNOISE, which computes the sound fields in the frequency domain. The following three cases of computations are performed for LES with different flow field configurations and/or grid resolutions: a coarse mesh without the struts located, in the actual fan, upstream of the rotor blades, a fine mesh without the struts, and a coarse mesh with the struts. The first two test cases are intended to investigate the effects of the mesh resolution on the prediction accuracy of the unsteady flow field, especially we intended to capture unsteadiness in turbulent boundary layer (TBL) in the second test case with the computational mesh composed of about 30 millions hexahedral elements. The fine mesh LES successfully reproduced the transition to TBL on the suction surface of the rotor blades and gives better, when compared with the results from the coarse mesh LES, agreements with measurements in terms of Euler’s. The final case is used for providing acoustical input data of the sound source. A reasonable agreement is obtained between the predicted and measured sound pressure level evaluated at 1.5 m upstream of the blade center.
10

Yang, Jing, and Andreas Roth. "Musical Features Modification for Less Intrusive Delivery of Popular Notification Sounds." In ICAD 2021: The 26th International Conference on Auditory Display. icad.org: International Community for Auditory Display, 2021. http://dx.doi.org/10.21785/icad2021.016.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
Less intrusive information delivery has been a popular research topic for auditory displays. While most research has addressed this issue by creating new notification cues such as rendering ambient soundscapes or modifying background music, we present a novel method to gently deliver artificial notification sounds that have been commonly used in digital devices and for popular applications. We propose to play a notification sound by embedding it into the music that a user is listening to, after changing the musical timbre, amplitude, tempo, and octave of the notification to match these features of the music. To implement this concept, we extend a melody extraction algorithm for notification timbre transfer, and we present a pipeline that algorithmically selects a proper time spot and harmoniously embeds the notification into music. To validate our design concept, we present a user study comparing our method with the standard method of playing notification sounds on digital devices. Through an extensive analysis of 96 tasks performed by 32 participants, we demonstrate that our method can deliver notification sounds in a less intrusive but adequately noticeable manner and is preferred by most participants.

Reports on the topic "Ambient sound analysis":

1

Brandenberger, Jill M., Li-Jung Kuo, Carolynn R. Suslick, and Robert K. Johnston. Ambient Monitoring for Sinclair and Dyes Inlets, Puget Sound, Washington: Chemical Analyses for 2012 Regional Mussel Watch. Office of Scientific and Technical Information (OSTI), September 2012. http://dx.doi.org/10.2172/1061411.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Brandenberger, Jill M., Li-Jung Kuo, Carolynn R. Suslick, and Robert K. Johnston. Ambient Monitoring for Sinclair and Dyes Inlets, Puget Sound, Washington: Chemical Analyses for 2010 Regional Mussel Watch (AMB02). Office of Scientific and Technical Information (OSTI), October 2010. http://dx.doi.org/10.2172/1122333.

Full text
APA, Harvard, Vancouver, ISO, and other styles

To the bibliography