Search results for "Sound Localization"

showing 3 items of 13 documents

Cumulative-Sum-Based Localization of Sound Events in Low-Cost Wireless Acoustic Sensor Networks

2014

Wireless acoustic sensor networks (WASNs) are known for their potential applications in multiple areas, such as audio-based surveillance, binaural hearing aids or advanced acoustic monitoring. The knowledge of the spatial position of a source of interest is usually a requirement for many of these applications. Therefore, source localization is an important problem to be addressed in WASNs. Unfortunately, most localization algorithms need costly signal processing stages that prevent them from being implemented in low-cost sensor networks, requiring additional modules for signal acquisition and processing. This paper presents a low-complexity method for acoustic event detection and localizati…

Sound localizationSignal processingAcoustics and UltrasonicsComputer sciencebusiness.industrySpeech recognitionNode (networking)Real-time computingCUSUMComputational MathematicsSoftware deploymentComputer Science (miscellaneous)WirelessElectrical and Electronic EngineeringbusinessWireless sensor networkChange detectionIEEE/ACM Transactions on Audio, Speech, and Language Processing
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Effect of Rotating Auditory Scene on Postural Control in Normal Subjects, Patients With Bilateral Vestibulopathy, Unilateral, or Bilateral Cochlear I…

2018

International audience; Objective: The aim of this study was to investigate the impact of a rotating sound stimulation on the postural performances in normal subjects, patients with bilateral vestibulopathy (BVP), unilateral (UCI), and bilateral (BCD cochlear implantees.Materials and Methods: Sixty-nine adults were included (32 women and 37 men) in a multicenter prospective study. The group included 37 healthy subjects, 10 BVP, 15 UCI, and 7 BCI patients. The average of age was 47 +/- 2.0 (range: 23-82). In addition to a complete audiovestibular work up, a dynamic posturography (Multitest Framiral, Grasse) was conducted in silence and with a rotating cocktail party sound delivered by headph…

Sound localizationmedicine.medical_specialtyStanding BalanceSensory systemAudiologyMonaurallcsh:RC346-429Hearing-AidsAssociationStance03 medical and health sciencesMotion0302 clinical medicinemedicineotorhinolaryngologic diseasesbilateral vestibulopathy[SDV.NEU] Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC]10. No inequality030223 otorhinolaryngologylcsh:Neurology. Diseases of the nervous systemOriginal ResearchVestibular systemmultisensoty integrationMobilityProprioceptionbusiness.industrymultisensory integrationPosturographyPeopleposturographybalanceOlder-Adultsmedicine.diseaseBilateral vestibulopathySoundNeurologybinaural hearingListeners[SDV.NEU]Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC]Neurology (clinical)stereophonybusinessBinaural recording030217 neurology & neurosurgeryFrontiers in neurology
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Microphones’ Directivity for the Localization of Sound Sources

2011

In a recent paper [P. Rizzo, G. Bordoni, A. Marzani, and J. Vipperman, "Localization of Sound Sources by Means of Unidirectional Microphones, Meas. Sci. Tech., 20, 055202 (12pp), 2009] the proof-of-concept of an approach for the localization of acoustic sources was presented. The method relies on the use of unidirectional microphones and amplitude-based signals' features to extract information about the direction of the incoming sound. By intersecting the directions identified by a pair of microphones, the position of the emitting source can be identified. In this paper we expand the work presented previously by assessing the effectiveness of the approach for the localization of an acoustic…

Sound localizationunidirectional microphonesound source localization; unidirectional microphones; polar directivity pattern; feature extraction; timedelay estimate.timedelay estimate.Anechoic chamberComputer scienceAcousticsfeature extractionFeature extractionDetectorpolar directivity patternAcoustic source localizationDirectivityExpression (mathematics)sound source localizationPosition (vector)
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