Frequency shifting listening device
Date
2012
Authors
Cheng, N.
Wong, W.
Cazzolato, B.
Prime, Z.
Hewett, K.
Burgemeister, K.
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Conference paper
Citation
Acoustics 2012: Proceedings of the Annual Conference of the Australian Acoustical Society, held in Fremantle, 21-23 November, 2012 / T. McMinn (ed.): pp.1-8
Statement of Responsibility
Nicholas Peng-Hao Cheng, Wei Shern Wong, Benjamin Cazzolato, Zebb Prime, Keith Hewett and Kym Burgemeister
Conference Name
Annual Conference of the Australian Acoustical Society (2012 : Fremantle, Western Australia)
Abstract
Sound identification is important in vibration and acoustic related engineering fields. The frequency spectrum of sound in some environments falls into the infrasound frequency range below 20 Hz, which is too low for the average human ear. Furthermore, sound above this frequency is still often difficult to identify due to interference and masking by other ambient noise sources. The focus of this paper is on the design and construction of a frequency shifting listening device which is able to shift frequency in real time and amplify low frequency noise into the audible frequency range, typically around 20 Hz to 20 kHz. The design phase of this device includes programming in Matlab/Simulink and rapid prototyping hardware using a Texas Instruments (TI) TMS320C6713 Digital Signal Processor Starter Kit (DSK).
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Copyright © 2012, The Australian Acoustical Society