{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,12,4]],"date-time":"2025-12-04T10:01:17Z","timestamp":1764842477207,"version":"build-2065373602"},"reference-count":30,"publisher":"MDPI AG","issue":"11","license":[{"start":{"date-parts":[[2021,6,3]],"date-time":"2021-06-03T00:00:00Z","timestamp":1622678400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Australian Research Council's Linkage Project","award":["LP160100616"],"award-info":[{"award-number":["LP160100616"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>Microphones have been extensively studied for many decades and their related theories are well-established. However, the physical presence of the sensor itself limits its practicality in many sound field control applications. Laser Doppler vibrometers (LDVs) are commonly used for the remote measurement of surface vibration that are related to the sound field without the introduction of any such physical intervention. This paper investigates the performance and challenges of using a piece of retro-reflective film directly as an acoustic membrane pick-up with an LDV to sense its vibration to form a remote acoustic sensing apparatus. Due to the special properties of the retro-reflective material, the LDV beam can be projected to the target over a wide range of incident angles. Thus, the location of the LDV relative to the pick-up is not severely restricted. This is favourable in many acoustic sensing and control applications. Theoretical analysis and systematic experiments were conducted on the membrane to characterise its performance. One design has been selected for sensing sound pressure level above 20 dB and within the 200 Hz to 4 kHz frequency range. Two example applications\u2014remote speech signal sensing\/recording and an active noise control headrest\u2014are presented to demonstrate the benefits of such a remote acoustic sensing apparatus with the retro-reflective material. Particularly, a significant 22.4 dB noise reduction ranging from 300 Hz to 6 kHz has been achieved using the demonstrated active control system. These results demonstrate the potential for such a solution with several key advantages in many applications over traditional microphones, primarily due to its minimal invasiveness.<\/jats:p>","DOI":"10.3390\/s21113866","type":"journal-article","created":{"date-parts":[[2021,6,3]],"date-time":"2021-06-03T21:03:32Z","timestamp":1622754212000},"page":"3866","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":10,"title":["Using a Retro-Reflective Membrane and Laser Doppler Vibrometer for Real-Time Remote Acoustic Sensing and Control"],"prefix":"10.3390","volume":"21","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2211-7827","authenticated-orcid":false,"given":"Tong","family":"Xiao","sequence":"first","affiliation":[{"name":"Centre for Audio, Acoustics and Vibration, University of Technology Sydney, Ultimo, NSW 2007, Australia"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6261-8864","authenticated-orcid":false,"given":"Sipei","family":"Zhao","sequence":"additional","affiliation":[{"name":"Centre for Audio, Acoustics and Vibration, University of Technology Sydney, Ultimo, NSW 2007, Australia"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5181-1220","authenticated-orcid":false,"given":"Xiaojun","family":"Qiu","sequence":"additional","affiliation":[{"name":"Centre for Audio, Acoustics and Vibration, University of Technology Sydney, Ultimo, NSW 2007, Australia"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5459-2329","authenticated-orcid":false,"given":"Benjamin","family":"Halkon","sequence":"additional","affiliation":[{"name":"Centre for Audio, Acoustics and Vibration, University of Technology Sydney, Ultimo, NSW 2007, Australia"}]}],"member":"1968","published-online":{"date-parts":[[2021,6,3]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Hansen, C., Snyder, S., Qiu, X., Brooks, L., and Moreau, D. (2012). Active Control of Noise and Vibration, CRC Press.","DOI":"10.1201\/b15923"},{"key":"ref_2","doi-asserted-by":"crossref","unstructured":"Eargle, J. (2012). The Microphone Book: From Mono to Stereo to Surround\u2014A Guide to Microphone Design and Application, CRC Press.","DOI":"10.4324\/9780080473468"},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"341","DOI":"10.1016\/0924-4247(91)87014-T","article-title":"A fiber-optic microphone","volume":"26","author":"Garthe","year":"1991","journal-title":"Sens. Actuators A Phys."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"35","DOI":"10.1016\/S0003-682X(96)00034-5","article-title":"Optical microphone transduction techniques","volume":"50","author":"Bilaniuk","year":"1997","journal-title":"Appl. Acoust."},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"1130","DOI":"10.1121\/1.1907249","article-title":"Electronic Sound Absorber","volume":"25","author":"Olson","year":"1953","journal-title":"J. Acoust. Soc. Am."},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"69","DOI":"10.3390\/a1020069","article-title":"A review of virtual sensing algorithms for active noise control","volume":"1","author":"Moreau","year":"2008","journal-title":"Algorithms"},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"2858","DOI":"10.1121\/1.5037363","article-title":"Estimation of the pressure at a listener\u2019s ears in an active headrest system using the remote microphone technique","volume":"143","author":"Jung","year":"2018","journal-title":"J. Acoust. Soc. Am."},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1038\/s41598-018-23531-y","article-title":"Head tracking extends local active control of broadband sound to higher frequencies","volume":"8","author":"Elliott","year":"2018","journal-title":"Sci. Rep."},{"key":"ref_9","doi-asserted-by":"crossref","unstructured":"Zhang, W., Samarasinghe, P.N., Chen, H., and Abhayapala, T.D. (2017). Surround by sound: A review of spatial audio recording and reproduction. Appl. Sci., 7.","DOI":"10.3390\/app7050532"},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"176","DOI":"10.1063\/1.1753925","article-title":"Localized fluid flow measurements with an He\u2013Ne laser spectrometer","volume":"4","author":"Yeh","year":"1964","journal-title":"Appl. Phys. Lett."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"11","DOI":"10.1016\/j.optlaseng.2016.10.023","article-title":"An international review of laser Doppler vibrometry: Making light work of vibration measurement","volume":"99","author":"Rothberg","year":"2017","journal-title":"Opt. Lasers Eng."},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"130","DOI":"10.1016\/S0924-4247(02)00310-2","article-title":"Micromachined piezoelectric membrane acoustic device","volume":"103","author":"Ko","year":"2003","journal-title":"Sens. Actuators A Phys."},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"38","DOI":"10.1016\/j.apacoust.2018.08.025","article-title":"Sensitivity measurement of a laboratory standard microphone by measuring the diaphragm vibration","volume":"143","author":"Suh","year":"2019","journal-title":"Appl. Acoust."},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"13","DOI":"10.1007\/s11220-013-0077-1","article-title":"Novel applications of laser Doppler vibration measurements to medical imaging","volume":"14","author":"Tabatabai","year":"2013","journal-title":"Sens. Imaging Int. J."},{"key":"ref_15","first-page":"10","article-title":"3-D laser vibrometry on legendary old Italian violins","volume":"41","author":"Bissinger","year":"2007","journal-title":"Sound Vib."},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"338","DOI":"10.1016\/j.apacoust.2011.10.004","article-title":"A platform for manipulation and examination of the acoustic guitar: The Chameleon Guitar","volume":"73","author":"Zoran","year":"2012","journal-title":"Appl. Acoust."},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"743","DOI":"10.1016\/j.isprsjprs.2011.07.002","article-title":"Photographic assessment of retroreflective film properties","volume":"66","author":"Burgess","year":"2011","journal-title":"ISPRS J. Photogramm. Remote Sens."},{"key":"ref_18","unstructured":"Kinsler, L.E., Frey, A.R., Coppens, A.B., and Sanders, J.V. (1999). Fundamentals of Acoustics, John Wiley & Sons."},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"1278","DOI":"10.1121\/1.382112","article-title":"Theoretical response of condenser microphones","volume":"64","author":"Zuckerwar","year":"1978","journal-title":"J. Acoust. Soc. Am."},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"435","DOI":"10.1016\/0022-460X(89)90568-3","article-title":"Closed form exact solutions for the steady state vibrations of continuous systems subjected to distributed exciting forces","volume":"134","author":"Leissa","year":"1989","journal-title":"J. Sound Vib."},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"194","DOI":"10.1016\/j.tws.2017.03.027","article-title":"Viscously damped free and forced vibrations of circular and annular membranes by a closed form exact method","volume":"116","author":"Kang","year":"2017","journal-title":"Thin-Walled Struct."},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"3459","DOI":"10.1121\/1.3504706","article-title":"Dynamic behavior of the circular membrane of an electrostatic microphone: Effect of holes in the backing electrode","volume":"128","author":"Lavergne","year":"2010","journal-title":"J. Acoust. Soc. Am."},{"key":"ref_23","unstructured":"Morse, P.M., and Ingard, K.U. (1986). Theoretical Acoustics, Princeton University Press."},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"3049","DOI":"10.1121\/1.402940","article-title":"Theoretical and experimental study of a fiber optic microphone","volume":"91","author":"Hu","year":"1992","journal-title":"J. Acoust. Soc. Am."},{"key":"ref_25","doi-asserted-by":"crossref","first-page":"107255","DOI":"10.1016\/j.ymssp.2020.107255","article-title":"Establishing correction solutions for scanning laser Doppler vibrometer measurements affected by sensor head vibration","volume":"150","author":"Halkon","year":"2021","journal-title":"Mech. Syst. Signal Process."},{"key":"ref_26","doi-asserted-by":"crossref","unstructured":"Xiao, T., Qiu, X., and Halkon, B. (2021). Using a Laser Doppler Vibrometer to Estimate Sound Pressure in Air. Vibration Engineering for a Sustainable Future, Springer.","DOI":"10.1007\/978-3-030-48153-7_47"},{"key":"ref_27","doi-asserted-by":"crossref","unstructured":"Lee, K.A., Gan, W.S., and Kuo, S.M. (2009). Subband Adaptive Filtering, Wiley Online Library.","DOI":"10.1002\/9780470745977"},{"key":"ref_28","doi-asserted-by":"crossref","first-page":"281","DOI":"10.1016\/j.apacoust.2005.10.008","article-title":"Developments in active noise control sound systems for magnetic resonance imaging","volume":"68","author":"Chambers","year":"2007","journal-title":"Appl. Acoust."},{"key":"ref_29","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1038\/s41598-020-77614-w","article-title":"Ultra-broadband local active noise control with remote acoustic sensing","volume":"10","author":"Xiao","year":"2020","journal-title":"Sci. Rep."},{"key":"ref_30","first-page":"662","article-title":"An experimental study on the active noise control using a parametric array loudspeaker","volume":"261","author":"Zhong","year":"2020","journal-title":"Proceedings of the INTER-NOISE and NOISE-CON Congress and Conference Proceedings"}],"container-title":["Sensors"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/1424-8220\/21\/11\/3866\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T06:10:37Z","timestamp":1760163037000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/1424-8220\/21\/11\/3866"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2021,6,3]]},"references-count":30,"journal-issue":{"issue":"11","published-online":{"date-parts":[[2021,6]]}},"alternative-id":["s21113866"],"URL":"https:\/\/doi.org\/10.3390\/s21113866","relation":{},"ISSN":["1424-8220"],"issn-type":[{"type":"electronic","value":"1424-8220"}],"subject":[],"published":{"date-parts":[[2021,6,3]]}}}