A flexible robotic system for implementing acoustic tasks (exploration, monitoring, diagnosis, recording, remote 3D audio listening, etc.) is proposed. The same is based on innovative and state-of-the-art acoustic micro sensing, advanced non-linear signal processing, and state-of-the-art 3D sound reproduction. From the point of view of sound transduction, state-of-the-art (based on hot-wire anemometry [4]), and innovative (based on micro-cantilevers of Lithium Niobate) velocimetry sensors will be implemented and tested. Velocimetry probes will allow to determine from a unique point of measure different acoustical features relevant for applications in cultural heritage. The arriving direction of an acoustical wave, the complete spatial characteristics of an acoustical environment, and the local impedance of a surface, are relevant examples. In fact, terrestrial, aerial, and underwater robots endowed with such advanced acoustical micro sensing capabilities should found applications in a multitude of tasks related to cultural heritage. We can mention: oAcoustical Survey oRemote 3D Recording oRemote and Real Time Acoustical Analysis, Diagnosis and Monitoring oAugmented Acoustic Reality for Museums and Exhibition Rooms oRemote 3D Listening In order to allow a smart operation and management of the acquired data, the robotic multi-purpose system will be also endowed with electronic means for remote (via WiFi and also through Internet) control of the acoustical sensing module, and for remote management of data and metadata exchange. A scalable control room equipped with state-of-the-art 3D sound diffusion facilities will allow remote listening of acquired sounds for exploration, survey, monitoring, and diagnosis. The room will be equipped also with visualization systems for displaying the information furnished in real time by a library of analysis algorithms. The main analysis functions of such library will include the following algorithms for processing of intensimetric 3D data: oSound direction localization. oObjective parametric characterization of the acoustical environments (environment volume, existence of cavities, etc.). These algorithms will include the computation of four-dimensional impulse responses for different applications related to room acoustics. oReal time diagnosis algorithms (impedance measurements on walls, identification of natural sounds, acoustic tomography and holography, etc.). The combination of robotic and acoustic capabilities will contribute greatly to improve the quality of acoustical surveys reducing costs, for example, in automatic acoustic characterization of theatres [1], churches and historical buildings, in automatic scanning of extended walls and floors, in acoustic characterization, diagnosis and monitoring in difficult environments (such as underground and underwater spaces), in aerial sampling; in automatic recording of natural soundscapes. For this scope will be implemented new techniques (such as velocimetric impedance measurements for determining internal discontinuities in cultural heritage materials like in frescoes [3]), and will be taken the maximum profit of nonlinear processing algorithms [5,6] and 3D acoustic recording and diffusion [7]. Moreover, facilities for real time sound monitoring and acoustical analysis of remote data and meta-data (as in geological monitoring [2], ecosystem acoustical exploration and survey [8], difficult environments exploration, etc.) will be also implemented. Bibliography: [1] P. Fausti, R. Pompoli, and N. Prodi, Acoustics of opera houses: A cultural heritage, J. Acoust. Soc. Am., V. 105, Issue 2, (1999) 929-929 http://www.loc.gov/folklife/sos/preserve1.html [2] G. Niccolini, A. Carpinteri, G. Lacidogna, and A. Manuello, Acoustic Emission Monitoring of the Syracuse Athena Temple: Scale Invariance in the Timing of Ruptures, Physical Review Letters, 106, 108503 (2011) 1-4 [3] P. Calicchia and G. Bosco Cannelli, Detecting and mapping detachments in mural paintings by non-invasive acoustic technique: measurements in antique sites, Journal of Cultural Heritage, 6 (2005) 115-124 [4] Microflown Technologies: http://www.microflown.com [5] J. Cartwright, D.L. Gonzalez and O. Piro, Nonlinear dynamics of the perceived pitch of complex sounds, Physical Review Letters, vol. 82, n. 26, (1999) 5389-5392 [6] J. Cartwright, D.L. Gonzalez and O. Piro, Pitch perception: A dynamical-systems perspective", PNAS, vol. 98, n.9, (2001) 4855-4859 [7] Diego L. Gonzalez (Coordinator), ELETTRA SOUND (©) brings you into the sound, DVD-Video clip with enhanced acoustic quad-audio through 5.1 playback, IP-RACINE Milestone M.42 Demo, (2008) [8] David Monacchi, Fragments of Extinction: Acoustic Biodiversity of Primary Rainforest Ecosystems, LEONARDO MUSIC JOURNAL, Vol. 23, (2013) 23-25,.
Flexible robotic system for multipurpose acoustic tasks on cultural heritage
Gonzalez Diego L
2014
Abstract
A flexible robotic system for implementing acoustic tasks (exploration, monitoring, diagnosis, recording, remote 3D audio listening, etc.) is proposed. The same is based on innovative and state-of-the-art acoustic micro sensing, advanced non-linear signal processing, and state-of-the-art 3D sound reproduction. From the point of view of sound transduction, state-of-the-art (based on hot-wire anemometry [4]), and innovative (based on micro-cantilevers of Lithium Niobate) velocimetry sensors will be implemented and tested. Velocimetry probes will allow to determine from a unique point of measure different acoustical features relevant for applications in cultural heritage. The arriving direction of an acoustical wave, the complete spatial characteristics of an acoustical environment, and the local impedance of a surface, are relevant examples. In fact, terrestrial, aerial, and underwater robots endowed with such advanced acoustical micro sensing capabilities should found applications in a multitude of tasks related to cultural heritage. We can mention: oAcoustical Survey oRemote 3D Recording oRemote and Real Time Acoustical Analysis, Diagnosis and Monitoring oAugmented Acoustic Reality for Museums and Exhibition Rooms oRemote 3D Listening In order to allow a smart operation and management of the acquired data, the robotic multi-purpose system will be also endowed with electronic means for remote (via WiFi and also through Internet) control of the acoustical sensing module, and for remote management of data and metadata exchange. A scalable control room equipped with state-of-the-art 3D sound diffusion facilities will allow remote listening of acquired sounds for exploration, survey, monitoring, and diagnosis. The room will be equipped also with visualization systems for displaying the information furnished in real time by a library of analysis algorithms. The main analysis functions of such library will include the following algorithms for processing of intensimetric 3D data: oSound direction localization. oObjective parametric characterization of the acoustical environments (environment volume, existence of cavities, etc.). These algorithms will include the computation of four-dimensional impulse responses for different applications related to room acoustics. oReal time diagnosis algorithms (impedance measurements on walls, identification of natural sounds, acoustic tomography and holography, etc.). The combination of robotic and acoustic capabilities will contribute greatly to improve the quality of acoustical surveys reducing costs, for example, in automatic acoustic characterization of theatres [1], churches and historical buildings, in automatic scanning of extended walls and floors, in acoustic characterization, diagnosis and monitoring in difficult environments (such as underground and underwater spaces), in aerial sampling; in automatic recording of natural soundscapes. For this scope will be implemented new techniques (such as velocimetric impedance measurements for determining internal discontinuities in cultural heritage materials like in frescoes [3]), and will be taken the maximum profit of nonlinear processing algorithms [5,6] and 3D acoustic recording and diffusion [7]. Moreover, facilities for real time sound monitoring and acoustical analysis of remote data and meta-data (as in geological monitoring [2], ecosystem acoustical exploration and survey [8], difficult environments exploration, etc.) will be also implemented. Bibliography: [1] P. Fausti, R. Pompoli, and N. Prodi, Acoustics of opera houses: A cultural heritage, J. Acoust. Soc. Am., V. 105, Issue 2, (1999) 929-929 http://www.loc.gov/folklife/sos/preserve1.html [2] G. Niccolini, A. Carpinteri, G. Lacidogna, and A. Manuello, Acoustic Emission Monitoring of the Syracuse Athena Temple: Scale Invariance in the Timing of Ruptures, Physical Review Letters, 106, 108503 (2011) 1-4 [3] P. Calicchia and G. Bosco Cannelli, Detecting and mapping detachments in mural paintings by non-invasive acoustic technique: measurements in antique sites, Journal of Cultural Heritage, 6 (2005) 115-124 [4] Microflown Technologies: http://www.microflown.com [5] J. Cartwright, D.L. Gonzalez and O. Piro, Nonlinear dynamics of the perceived pitch of complex sounds, Physical Review Letters, vol. 82, n. 26, (1999) 5389-5392 [6] J. Cartwright, D.L. Gonzalez and O. Piro, Pitch perception: A dynamical-systems perspective", PNAS, vol. 98, n.9, (2001) 4855-4859 [7] Diego L. Gonzalez (Coordinator), ELETTRA SOUND (©) brings you into the sound, DVD-Video clip with enhanced acoustic quad-audio through 5.1 playback, IP-RACINE Milestone M.42 Demo, (2008) [8] David Monacchi, Fragments of Extinction: Acoustic Biodiversity of Primary Rainforest Ecosystems, LEONARDO MUSIC JOURNAL, Vol. 23, (2013) 23-25,.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
