International Journal of Computational Linguistics Research

DLINE Journals portal

Home

New Journals

Browse Journals

Journal Prices

For Authors

Print ISSN: 0976-416X
Online ISSN: 0976-4178

About IJCLR
	DLINE Portal Home Home Aims & Scope Editorial Board Current Issue Next Issue Previous Issue Sample Issue Upcoming Conferences Self-archiving policy Alert Services Be a Reviewer Publisher Paper Submission Subscription Contact us

How To Order
	Order Online Price Information Request for Complimentary Print Copy

For Authors
	Guidelines for Contributors Online Submission Call for Papers Author Rights

RELATED JOURNALS

Journal of Digital Information Management (JDIM)

Journal of Multimedia Processing and Technologies (JMPT)

International Journal of Web Application (IJWA)

International Journal of Computational Linguistics Research

Testing Speech Membrane with Different Couplers and Microphone Distances

Dejan Ciric, Marko Licanin, Ana Dordevic and Miljan Miletic
Faculty of Electronic Engineering, University of Nis Aleksandra Medvedeva 14, 18000 Nis Serbia., Faculty of Occupational Safety, University of Nis Carnojeviaa 10a, 18000 Nis, Serbia/. Faculty of Electronic Engineering, University of Nis Aleksandra Medvede

Abstract: The gas or oxygen masks deploy elements out of which the speech membrane is important. A few indicators such as cut-off frequencies, distortions and transfer function can be used to characterize the membrane. A difficult issue is the measurement of system task in the membrane transfer. We have investigated these issues in this paper. We have studied the influence of a device coupling on the sound source and tested speech membrane. Further we have studied the position of microphone in reference to the sound source. We have thus applied five different couplers and four microphone distances.

Keywords: Gas Mask, Speech Membrane, Transfer Function, Measurement System Testing Speech Membrane with Different Couplers and Microphone Distances

DOI:https://doi.org/10.6025/jcl/2022/13/2/35-43

Full_Text PDF 1.88 MB Download: 207 times

References:

[1] Kushner, W.M., Harton, S.M. & Novorita, R.J. The distorting effects of SCBA equipment on speech and algorithms for mitigation 13th European Signal Processing Conference, Antalya, Turkey, 2005.
[2] Sari, H. (1997). Underwater Acoustic Voice Communications Using Digital Techniques [PhD Dissertation]. Loughborough University: UK.
[3] Vojnovic, M., Mijic, M. & Šumarac Pavlovic, D. (2017) A simplified Model of Mouth Radiation Impedance Closed by Mask Cavity. Applied Acoustics, 115, 3–5 [DOI: 10.1016/j.apacoust.2016.08.016].
[4] Vojnovic, M. & Mijic, M. (1997) The influence of the oxygen Mask on long-time spectra of continuous speech. Journal of the Acoustical Society of America, 102, 2456–2458 [DOI: 10.1121/1.421021].
[5] Morrow, C.T. & Brouns, A.J. (1971) Speech communication in diving masks. I. Acoustics of microphones and mask cavities. Journal of the Acoustical Society of America, 50, 1–9 [DOI: 10.1121/1.1912608] [PubMed: 5560463].
[6] Ryback, H. (1988) Protective breathing mask having a speaking diaphragm for close communication and an electroacoustic transducer system for indirect speech transmission from inside the Mask. Journal of the Acoustical Society of America US Patent no. 4 756 308, 84, 2309–2309 [DOI: 10.1121/1.396741].
[7] Bond, Z.S., Moore, T.J. & Gable, B. (1989) Acoustic-phonetic characteristics of speech produced in noise and while wearing an oxygen Mask. Journal of the Acoustical Society of America, 85, 907–912 [DOI: 10.1121/1.397563] [PubMed: 2926006].
[8] Motsinger, A.V. Gas mask Spech transmission US Patent no. 3 140 754 (1964).
[9] Vandeputte, G. Gas mask coupled to monolithic member with speech membrane US Patent no. 4 957 106 (1990).
[10] Langfeldt, F., Riecken, J. & Gleine, W. (2016) von Estorff, A Membrane-Type Acoustic Metamaterial with Adjustable Acoustic Properties. Journal of Sound and Vibration, 373, 1–18.

DLINE Journals portal