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dc.contributor.advisorPettersen, Odd Kr.
dc.contributor.advisorReinen, Tor Arne
dc.contributor.authorLoe, Dag Axel Aarset
dc.date.accessioned2019-09-11T11:07:59Z
dc.date.created2015-06-22
dc.date.issued2015
dc.identifierntnudaim:13355
dc.identifier.urihttp://hdl.handle.net/11250/2615935
dc.description.abstractThis thesis investigates the potential of using active noise control (ANC) for attenuating the wind noise experienced by a motorcycle rider at speed. This is done by recording wind noise simultaneously at several locations in a motorcycle helmet, measuring speaker system response (plant) in the helmet, and simulating an active noise control system using the recorded signals and plant. Analysis of the measured signals and plant response is also performed, and implementational challenges not accounted for in simulations are discussed. Results indicate two main obstacles for obtaining attenuation using ANC on motorcycle helmet wind noise: Latency of the plant. The speaker systems ability to generate high sound pressure levels at low frequencies. It is concluded that it is plausible for an ANC system to obtain significant levels of attenuation for motorcycle helmet wind noise, if certain criteria are met. The thesis also gives recommendations for further work and discusses potential improvements on the analysed ANC system.en
dc.languageeng
dc.publisherNTNU
dc.subjectElektronikk, Signalbehandling, akustikk og mediaen
dc.titleMultichannel ANC for Motorcycle Helmetsen
dc.typeMaster thesisen
dc.source.pagenumber80
dc.contributor.departmentNorges teknisk-naturvitenskapelige universitet, Fakultet for informasjonsteknologi og elektroteknikk,Institutt for elektroniske systemernb_NO
dc.date.embargoenddate10000-01-01


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