scholarly journals Real-Time Acoustic Analysis of Batteries

2020 ◽  
Author(s):  
Ilan Gur ◽  
Keyword(s):  
Real Time ◽  
Acoustic Analysis

Evaluation of Seismic-Acoustic Analysis Methods for a Real-time UXO Monitoring System

2013 ◽  
Vol 18 (1) ◽  
pp. 71-85 ◽  
Author(s):  
T. F. VanDeMark ◽  
L. B. Johnson ◽  
A. Pitarka ◽  
H. H. Bennett ◽  
J. E. Simms ◽  
...  
Keyword(s):  
Real Time ◽  
Monitoring System ◽  
Acoustic Analysis ◽  
Analysis Methods

Acoustic Analysis of Cylindrical, Conical and Worm Gears

2019 ◽  
Vol 957 ◽  
pp. 211-220
Author(s):  
Cornel Cristian Enciu ◽  
Cristian Tarba ◽  
Cristian Barbulescu
Keyword(s):  
Fourier Transform ◽  
Fast Fourier Transform ◽  
Real Time ◽  
Acoustic Analysis ◽  
Single Channel ◽  
Intensity Level ◽  
Analog Filter ◽  
Transform Method ◽  
Worm Gears ◽  
Electric Drill

The paper aims to determine the characteristic frequencies of an electric drill, by measuring and analyzing comparatively the variations of the acoustic intensity level, using the Fast Fourier Transform method (FFT). This was applied using a stand which had been specifically developed for the presented work. In two channel and multichannel systems, digital methods have been used for the calculation of cross properties as they were the only practical methods. Using digital techniques has gained considerable ground, being nowadays applied to problems once solved by resorting to analog methods. The increasing use of Fast Fourier Transform methods is found in single channel real time narrow band measurements and the Digital Filtering is replacing the Analog Filter bank which was used as the basis for real time analyzers operating with constant percentage bandwidth.

scholarly journals Low-Cost WASN for Real-Time Soundmap Generation

2021 ◽  
Vol 6 (1) ◽  
pp. 57
Author(s):  
Gerardo José Ginovart-Panisello ◽  
Ester Vidaña-Vila ◽  
Selene Caro-Via ◽  
Carme Martínez-Suquía ◽  
Marc Freixes ◽  
...  
Keyword(s):  
Real Time ◽  
Acoustic Analysis ◽  
Road Traffic ◽  
Low Cost ◽  
Traffic Noise ◽  
The Elderly ◽  
Road Traffic Noise ◽  
Public Places ◽  
Changing Patterns ◽  
Real Scenario

Recent advances in technology have enabled the development of affordable low-cost acoustic monitoring systems, as a response of several fields of application that require a close acoustic analysis in real-time: road traffic noise in crowded cities, biodiversity conservation in natural parks, behavioural tracking in the elderly living alone and even surveillance in public places for safety reasons. This paper presents a low-cost wireless acoustic sensor network developed to gather acoustic data to build a 24/7 real-time soundmap. Each node of the network comprises an omnidirectional microphone and a computation unit, which processes acoustic information locally to obtain nonsensitive data (i.e., equivalent continuous loudness levels or acoustic event labels) that are sent to a cloud server. Moreover, it has also been studied the placement of the acoustic sensors in a real scenario, following acoustics criteria. The ultimate goal of the deployed system is to enable the following functions: (i) to measure the Leq in real-time in a predefined window, (ii) to identify changing patterns in the previous measurements so that anomalous situations can be detected and (iii) to prevent and attend potential irregular situations. The proposed network aims to encourage the use of real-time non-invasive devices to obtain behavioural and environmental information, in order to take decisions in real-time.

Evaluation of Seismic-Acoustic Analysis Methods for a Real-Time UXO Monitoring System

2009 ◽  
Author(s):  
T. VanDeMark ◽  
L. Johnson ◽  
J. Bennett ◽  
J. Simms ◽  
D. Yule
Keyword(s):  
Real Time ◽  
Monitoring System ◽  
Acoustic Analysis ◽  
Analysis Methods

Evaluation of Seismic‐Acoustic Analysis Methods for a Real‐Time UXO Monitoring System

2009 ◽  
Author(s):  
Thomas F. VanDeMark ◽  
Lars B. Johnson ◽  
Jay Bennett ◽  
Janet E. Simms ◽  
Don E. Yule
Keyword(s):  
Real Time ◽  
Monitoring System ◽  
Acoustic Analysis ◽  
Analysis Methods

scholarly journals Beyond Correlation: Acoustic Transformation Methods for the Experimental Study of Emotional Voice and Speech

2020 ◽  
pp. 175407392093454
Author(s):  
Pablo Arias ◽  
Laura Rachman ◽  
Marco Liuni ◽  
Jean-Julien Aucouturier
Keyword(s):  
Experimental Study ◽  
Signal Processing ◽  
Open Source ◽  
Real Time ◽  
Acoustic Analysis ◽  
Audio Signal ◽  
Audio Signal Processing ◽  
Transformation Techniques ◽  
Transformation Methods ◽  
Voice And Speech

While acoustic analysis methods have become a commodity in voice emotion research, experiments that attempt not only to describe but to computationally manipulate expressive cues in emotional voice and speech have remained relatively rare. We give here a nontechnical overview of voice-transformation techniques from the audio signal-processing community that we believe are ripe for adoption in this context. We provide sound examples of what they can achieve, examples of experimental questions for which they can be used, and links to open-source implementations. We point at a number of methodological properties of these algorithms, such as being specific, parametric, exhaustive, and real-time, and describe the new possibilities that these open for the experimental study of the emotional voice.

Organ Augmented Reality

2010 ◽  
Vol 1 (2) ◽  
pp. 51-66 ◽  
Author(s):  
Christian Jacquemin ◽  
Rami Ajaj ◽  
Sylvain Le Beux ◽  
Christophe d’Alessandro ◽  
Markus Noisternig ◽  
...  
Keyword(s):  
Spectral Analysis ◽  
Augmented Reality ◽  
Real Time ◽  
Acoustic Analysis ◽  
Sound Field ◽  
Musical Instrument ◽  
New Approach ◽  
Sound Levels ◽  
Organ Pipes

This paper discusses the Organ Augmented Reality (ORA) project, which considers an audio and visual augmentation of an historical church organ to enhance the understanding and perception of the instrument through intuitive and familiar mappings and outputs. ORA has been presented to public audiences at two immersive concerts. The visual part of the installation was based on a spectral analysis of the music. The visuals were projections of LED-bar VU-meters on the organ pipes. The audio part was an immersive periphonic sound field, created from the live capture of the organ sounds, so that the listeners had the impression of being inside the augmented instrument. The graphical architecture of the installation is based on acoustic analysis, mapping from sound levels to synchronous graphics through visual calibration, real-time multi-layer graphical composition and animation. The ORA project is a new approach to musical instrument augmentation that combines enhanced instrument legibility and enhanced artistic content.

Organ Augmented Reality

2012 ◽  
pp. 131-147
Author(s):  
Christian Jacquemin ◽  
Rami Ajaj ◽  
Sylvain Le Beux ◽  
Christophe d’Alessandro ◽  
Markus Noisternig ◽  
...  
Keyword(s):  
Spectral Analysis ◽  
Augmented Reality ◽  
Real Time ◽  
Acoustic Analysis ◽  
Sound Field ◽  
Musical Instrument ◽  
New Approach ◽  
Sound Levels ◽  
Organ Pipes

This paper discusses the Organ Augmented Reality (ORA) project, which considers an audio and visual augmentation of an historical church organ to enhance the understanding and perception of the instrument through intuitive and familiar mappings and outputs. ORA has been presented to public audiences at two immersive concerts. The visual part of the installation was based on a spectral analysis of the music. The visuals were projections of LED-bar VU-meters on the organ pipes. The audio part was an immersive periphonic sound field, created from the live capture of the organ sounds, so that the listeners had the impression of being inside the augmented instrument. The graphical architecture of the installation is based on acoustic analysis, mapping from sound levels to synchronous graphics through visual calibration, real-time multi-layer graphical composition and animation. The ORA project is a new approach to musical instrument augmentation that combines enhanced instrument legibility and enhanced artistic content.

scholarly journals An OpenBIM workflow to support collaboration between Acoustic Engineers and Architects

2021 ◽  
Vol 2069 (1) ◽  
pp. 012164
Author(s):  
Tim Pat McGinley ◽  
Thomas Vestergaard ◽  
Cheol-Ho Jeong ◽  
Finnur Pind
Keyword(s):  
Real Time ◽  
Design Process ◽  
Architectural Design ◽  
Acoustic Analysis ◽  
Geometric Information ◽  
International Standard ◽  
Acoustic Performance ◽  
Analysis Process ◽  
Exchange Format ◽  
File Formats

Abstract Architects require the insight of acoustic engineers to understand how to improve and/or optimize the acoustic performance of their buildings. Normally this is supported by the architect providing digital models of the design to the acoustic engineer for analysis in the acoustician’s disciplinary software, for instance Odeon. This current workflow suffers from the following challenges: (1) architects typically require feedback on architectural disciplinary models that have too much geometric information unnecessarily complicating the acoustic analysis process; (2) the acoustician then has to waste time simplifying that geometry, (3) finally, this extra work wastes money which could otherwise be spent on faster design iterations supported by frequent feedback between architects and acousticians early in the design process. This paper focuses on the architect / acoustician workflow, however similar challenges can be found in other disciplines. OpenBIM workflows provide opportunities to increase the standardization of processes and interfaces between disciplines by reducing the reliance on the proprietary discipline specific file formats and tools. This paper lays the foundation for an OpenBIM workflow to enable the acoustic engineer to provide near real time feedback on the acoustic performance of the architectural design. The proposed workflow investigates the use of the international standard IFC as a design format rather than simply an exchange format. The workflow is presented here with the intention that this will be further explored and developed by other researchers, architects and acousticians.

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