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3D Room Geometry Reconstruction Using Audio-Visual Sensors

Hansung Kim, Luca Remaggi, Philip JB Jackson, Filippo Maria Fazi, Adrian Hilton
2017 2017 International Conference on 3D Vision (3DV)  
A full scene is captured by 360 • cameras and acoustic room impulse responses (RIRs) recorded by a loudspeaker and compact microphone array.  ...  The coordinate systems for audiovisual sensors are aligned into a unified reference frame and plane elements are reconstructed from audio-visual data.  ...  Acknowledgements This work was supported by the EPSRC Programme Grant S3A: Future Spatial Audio for an Immersive Listener Experience at Home (EP/L000539/1) and the BBC as part of the BBC Audio Research  ... 
doi:10.1109/3dv.2017.00076 dblp:conf/3dim/KimRJFH17 fatcat:e3ssonjk2rcsdcu7mpkymhkckm

Facial Muscle Activity Recognition with Reconfigurable Differential Stethoscope-Microphones

Hymalai Bello, Bo Zhou, Paul Lukowicz
2020 Sensors  
In this work, we describe, in detail, the design and evaluation of a wearable system for facial muscle activity monitoring based on a re-configurable differential array of stethoscope-microphones.  ...  On a user-dependent basis, our worst result has an f1-score = 60% and best result with f1-score = 89%.  ...  Funding: The research reported in this paper has been partially supported by the BMBF (German Federal Ministry of Education and Research) in the project HeadSense (project number 01IW18001).  ... 
doi:10.3390/s20174904 pmid:32872633 fatcat:dsl6w4nipzd5fphup6zilb6sq4

Road to Acquisition: Preparing a MEMS Microphone Array for Measurement of Fuselage Surface Pressure Fluctuations

Thomas Ahlefeldt, Stefan Haxter, Carsten Spehr, Daniel Ernst, Tobias Kleindienst
2021 Micromachines  
In our case, we wanted to compare acoustic Micro-Electro-Mechanical Systems (MEMS) to large and proven surface-mounted condenser microphones.  ...  The final goal of performing in-flight measurements on the outside fuselage of a twin-engine turboprop aircraft was eventually achieved using a slim array of 45 MEMS microphones with additional large microphones  ...  Acknowledgments: The authors would like to sincerely acknowledge contributions by the following people and entities: Stefan Kommallein and the team from DLR Flight Experiments Facility (FX); airplus Maintenance  ... 
doi:10.3390/mi12080961 fatcat:g43fn7ererg6dmac2gaplmdmpa

Multi-modal and multi-camera attention in smart environments

Boris Schauerte, Jan Richarz, Thomas Plötz, Christian Thurau, Gernot A. Fink
2009 Proceedings of the 2009 international conference on Multimodal interfaces - ICMI-MLMI '09  
Saliency is a cue that is often used for directing attention of a computer vision system, e.g., in smart environments or for robots.  ...  For experimental validation we realized the proposed system within a smart environment.  ...  For such microphone arrays many methods for sound source localization have been proposed in the literature (cf. [9] ).  ... 
doi:10.1145/1647314.1647370 dblp:conf/icmi/SchauerteRPTF09 fatcat:snnqgtry6nbdnnn3gh6c7gtfra

Diffuse-Field Equalisation of Binaural Ambisonic Rendering

Thomas McKenzie, Damian Murphy, Gavin Kearney
2018 Applied Sciences  
Results show DFE successfully improves frequency reproduction of binaural Ambisonic rendering for the majority of sound source locations, as well as the limitations of the technique, and set the basis  ...  for further research in the field.  ...  Ambisonic sound fields can be recorded using multiple capsule microphone arrays or encoded using point sources, and reproduced over multiple loudspeaker arrays or over headphones.  ... 
doi:10.3390/app8101956 fatcat:c7ytv3crljcjbjtbm2t5knk5ii

The structural acoustic properties of stiffened shells

Yu Luan
2008 Journal of the Acoustical Society of America  
Typical illustrations of the CAA approach will then be presented and applications for transportation systems will be discussed. 1a MON. AM 2969 2969 Invited Papers 1:00 1pAAa1.  ...  International technical standard for field measurements of DL2 integrates new descriptive models for open plan office acoustics, taking into account geometric proportions, presence of screens and furniture  ...  The acquired data have been numerically processed in order to obtain the complete three dimensional reconstruction of the analysed sound field.  ... 
doi:10.1121/1.2932806 fatcat:zohbewf2k5h7fly2hoqzfdk42e

Acoustic GIS‐based monitoring of Atlantic cod ecosystems in coastal Newfoundland

George A. Rose
2008 Journal of the Acoustical Society of America  
Typical illustrations of the CAA approach will then be presented and applications for transportation systems will be discussed. 1a MON. AM 2969 2969 Invited Papers 1:00 1pAAa1.  ...  International technical standard for field measurements of DL2 integrates new descriptive models for open plan office acoustics, taking into account geometric proportions, presence of screens and furniture  ...  Blind source separation and directional audio synthesis for binaural auralization of multiple sound sources using microphone array recordings.  ... 
doi:10.1121/1.2932540 fatcat:v6w3j7upx5duhkunch6oai5jve

On determination of microphone response and other parameters by a hybrid experimental and numerical method

Salvador Barrera‐Figueroa, Finn Jacobsen, Knud Rasmussen
2008 Journal of the Acoustical Society of America  
The bat's 3D flight path was recorded with high-speed stereo IR video; its sonar signals were recorded with a microphone array that permitted reconstruction of the emission pattern.  ...  Then the sound field on another plane is propagated using NAH from the acquired sound fields, and the sound field on the same plane is reconstructed by O-CT.  ...  We discuss the implication of these results for the subspace based detection of signals in white and colored noise using large arrays and illustrate the accuracy of the predictions with numerical simulations  ... 
doi:10.1121/1.2933455 fatcat:gl6kkwih6rbkriigc7g6ghdlnq

Trends in preference, programming and design of concert halls for symphonic music

Anders C. Gade
2008 Journal of the Acoustical Society of America  
The acquired data have been numerically processed in order to obtain the complete three dimensional reconstruction of the analysed sound field.  ...  The dual co-centred spherical microphone array has 64 microphones, with 32 microphones on the open spherical microphone array of radius 6.30 cm and 32 microphones on the rigid spherical microphone array  ...  Blind source separation and directional audio synthesis for binaural auralization of multiple sound sources using microphone array recordings.  ... 
doi:10.1121/1.2932471 fatcat:hhka5ml2fvcszklkzau2lw3gka

Nonnative listeners prefer perceptual cues they know from their L1: Dutch listeners use vowel duration less than English listeners for English final /v/‐/f/

Mirjam Broersma
2008 Journal of the Acoustical Society of America  
The bat's 3D flight path was recorded with high-speed stereo IR video; its sonar signals were recorded with a microphone array that permitted reconstruction of the emission pattern.  ...  Then the sound field on another plane is propagated using NAH from the acquired sound fields, and the sound field on the same plane is reconstructed by O-CT.  ...  We discuss the implication of these results for the subspace based detection of signals in white and colored noise using large arrays and illustrate the accuracy of the predictions with numerical simulations  ... 
doi:10.1121/1.2933287 fatcat:gqdetkftz5cmrghkql35figuw4

Relationship between room shape and acoustics of rectangular concert halls

Andrzej K. Klosak, Anders C. Gade
2008 Journal of the Acoustical Society of America  
The bat's 3D flight path was recorded with high-speed stereo IR video; its sonar signals were recorded with a microphone array that permitted reconstruction of the emission pattern.  ...  Then the sound field on another plane is propagated using NAH from the acquired sound fields, and the sound field on the same plane is reconstructed by O-CT.  ...  We discuss the implication of these results for the subspace based detection of signals in white and colored noise using large arrays and illustrate the accuracy of the predictions with numerical simulations  ... 
doi:10.1121/1.2933354 fatcat:eymbpllxwjcfdbkedeijrtwbwq

Green's-function reaction dynamics: A particle-based approach for simulating biochemical networks in time and space

Jeroen S. van Zon, Pieter Rein ten Wolde
2005 Journal of Chemical Physics  
The bat's 3D flight path was recorded with high-speed stereo IR video; its sonar signals were recorded with a microphone array that permitted reconstruction of the emission pattern.  ...  Then the sound field on another plane is propagated using NAH from the acquired sound fields, and the sound field on the same plane is reconstructed by O-CT.  ...  We discuss the implication of these results for the subspace based detection of signals in white and colored noise using large arrays and illustrate the accuracy of the predictions with numerical simulations  ... 
doi:10.1063/1.2137716 pmid:16392952 fatcat:tyehqewfnzahfju3rxvivugvaa

A binaural advantage in the subjective modulation transfer function with simple impulse responses

Eric R. Thompson, Torsten Dau
2008 Journal of the Acoustical Society of America  
The bat's 3D flight path was recorded with high-speed stereo IR video; its sonar signals were recorded with a microphone array that permitted reconstruction of the emission pattern.  ...  Then the sound field on another plane is propagated using NAH from the acquired sound fields, and the sound field on the same plane is reconstructed by O-CT.  ...  We discuss the implication of these results for the subspace based detection of signals in white and colored noise using large arrays and illustrate the accuracy of the predictions with numerical simulations  ... 
doi:10.1121/1.2933699 fatcat:4nc5pg4ysbhgrjcatwhr7fh77q

The importance of bass clarity in pop and rock venues

Niels W. Adelman‐Larsen, Eric R. Thompson
2008 Journal of the Acoustical Society of America  
The bat's 3D flight path was recorded with high-speed stereo IR video; its sonar signals were recorded with a microphone array that permitted reconstruction of the emission pattern.  ...  Then the sound field on another plane is propagated using NAH from the acquired sound fields, and the sound field on the same plane is reconstructed by O-CT.  ...  We discuss the implication of these results for the subspace based detection of signals in white and colored noise using large arrays and illustrate the accuracy of the predictions with numerical simulations  ... 
doi:10.1121/1.2932922 fatcat:fvtlbt6x5vgelp5p67x53qtvgi

On the applicability of models for outdoor sound

Karsten B. Rasmussen
1999 Journal of the Acoustical Society of America  
responses, and an artificial speaker and a dummy head microphone for measurements of SI criteria and recording of logatom syllables.  ...  A specially constructed spaced four-capsule microphone in tetrahedron arrangement was used for measuring also.  ...  Computer-aided systems for prolonged recording and analysis of human bowel sounds. Charalambos A. Dimoulas, George V.  ... 
doi:10.1121/1.425063 fatcat:rx6rqlhfqras5gqdrobu6sl4vi
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