Wind Noise Measurements and Characterization Around Small Microphone Ports
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J. McIntosh, and S. Bhunia, "Wind Noise Measurements and Characterization Around Small Microphone Ports," Paper 9379, (2015 October.). doi:
J. McIntosh, and S. Bhunia, "Wind Noise Measurements and Characterization Around Small Microphone Ports," Paper 9379, (2015 October.). doi:
Abstract: The physical origins of microphone wind noise is discussed and measured. The measured noise levels are shown to correlate well to theoretical estimates of non-propagating local fluid dynamic turbulence pressure variations called “convective pressure.” The free stream convective pressure fluctuations may already be present in a flow independent of its interactions with a device housing a microphone. Consequently, wind noise testing should be made in turbulent air flows rather than laminar. A metric based on the Speech Intelligibility Index (SII) is proposed for characterizing wind noise effects for devices primarily designed to work with speech signals, making it possible to evaluate nonlinear processing effects on reducing wind noise on microphones.
@article{mcintosh2015wind,
author={mcintosh, jason and bhunia, sourav},
journal={journal of the audio engineering society},
title={wind noise measurements and characterization around small microphone ports},
year={2015},
volume={},
number={},
pages={},
doi={},
month={october},}
@article{mcintosh2015wind,
author={mcintosh, jason and bhunia, sourav},
journal={journal of the audio engineering society},
title={wind noise measurements and characterization around small microphone ports},
year={2015},
volume={},
number={},
pages={},
doi={},
month={october},
abstract={the physical origins of microphone wind noise is discussed and measured. the measured noise levels are shown to correlate well to theoretical estimates of non-propagating local fluid dynamic turbulence pressure variations called “convective pressure.” the free stream convective pressure fluctuations may already be present in a flow independent of its interactions with a device housing a microphone. consequently, wind noise testing should be made in turbulent air flows rather than laminar. a metric based on the speech intelligibility index (sii) is proposed for characterizing wind noise effects for devices primarily designed to work with speech signals, making it possible to evaluate nonlinear processing effects on reducing wind noise on microphones.},}
TY - paper
TI - Wind Noise Measurements and Characterization Around Small Microphone Ports
SP -
EP -
AU - McIntosh, Jason
AU - Bhunia, Sourav
PY - 2015
JO - Journal of the Audio Engineering Society
IS -
VO -
VL -
Y1 - October 2015
TY - paper
TI - Wind Noise Measurements and Characterization Around Small Microphone Ports
SP -
EP -
AU - McIntosh, Jason
AU - Bhunia, Sourav
PY - 2015
JO - Journal of the Audio Engineering Society
IS -
VO -
VL -
Y1 - October 2015
AB - The physical origins of microphone wind noise is discussed and measured. The measured noise levels are shown to correlate well to theoretical estimates of non-propagating local fluid dynamic turbulence pressure variations called “convective pressure.” The free stream convective pressure fluctuations may already be present in a flow independent of its interactions with a device housing a microphone. Consequently, wind noise testing should be made in turbulent air flows rather than laminar. A metric based on the Speech Intelligibility Index (SII) is proposed for characterizing wind noise effects for devices primarily designed to work with speech signals, making it possible to evaluate nonlinear processing effects on reducing wind noise on microphones.
The physical origins of microphone wind noise is discussed and measured. The measured noise levels are shown to correlate well to theoretical estimates of non-propagating local fluid dynamic turbulence pressure variations called “convective pressure.” The free stream convective pressure fluctuations may already be present in a flow independent of its interactions with a device housing a microphone. Consequently, wind noise testing should be made in turbulent air flows rather than laminar. A metric based on the Speech Intelligibility Index (SII) is proposed for characterizing wind noise effects for devices primarily designed to work with speech signals, making it possible to evaluate nonlinear processing effects on reducing wind noise on microphones.
Authors:
McIntosh, Jason; Bhunia, Sourav
Affiliation:
Starkey Hearing Technologies, Eden Prairie, MN, USA
AES Convention:
139 (October 2015)
Paper Number:
9379
Publication Date:
October 23, 2015Import into BibTeX
Subject:
Transducers
Permalink:
http://www.aes.org/e-lib/browse.cfm?elib=17937