Archives of Acoustics, 43, 2, pp. 275–281, 2018
10.24425/122375

Quiet Zone for the patient in an Ambulance: Active Noise Control Technology for Siren Noise Reduction

Manoj Kumar SHARMA
http://www.uiet.puchd.ac.in
UIET, Panjab University
India

Renu VIG
http://www.uiet.puchd.ac.in
UIET, Panjab University
India

Ravi PAL
UIET, Panjab University
India

Veena SHANTHARAM
CSIR-National Aerospace Laboratories
India

This paper proposes an active noise control (ANC) application to attenuate siren noise for the patient lying inside ambulance with no sound proofing. From the point of cost effectiveness, a local ANC system based on feedforward scheme is considered. Further, to handle the limitation of limited Zone of Silence (ZoS), the ANC based on virtual sensing is explored. The simulations are done in MATLAB for the recorded ambulance siren noise signal. The results indicate that ANC can be an effective solution for creating a silent environment for the patient.
Keywords: active noise control; virtual sensing technique; ambulance siren noise; zone of silence; feedforward ANC; virtual ANC
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DOI: 10.24425/122375

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