Optimal Microphone Placement for Single-Channel Sound-Power Spectrum Estimation and Reverberation Effects
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SA. D.. Bellows, and TI. W.. Leishman, "Optimal Microphone Placement for Single-Channel Sound-Power Spectrum Estimation and Reverberation Effects," J. Audio Eng. Soc., vol. 71, no. 1/2, pp. 20-33, (2023 January.). doi: https://doi.org/10.17743/jaes.2022.0052
SA. D.. Bellows, and TI. W.. Leishman, "Optimal Microphone Placement for Single-Channel Sound-Power Spectrum Estimation and Reverberation Effects," J. Audio Eng. Soc., vol. 71 Issue 1/2 pp. 20-33, (2023 January.). doi: https://doi.org/10.17743/jaes.2022.0052
Abstract: The sound power produced by an acoustic source comprises its total sound energy radiated in all directions per unit time. As the global emission, it excites the reverberant field of a surrounding room. Conversely, an acoustic signal detected for audio applications, including driving reverberation effects, often results from a microphone at a discrete location that does not capture the global source sound and its sound-power spectrum. This paper explores several physical bases for how measured high-resolution spherical directivity functions and known room conditions allow audio engineers to optimize a microphone position to yield a signal with a mean-squared spectrum best approximating the time-averaged sound-power spectrum. The proposed approaches provide means to capture the global source sound with its attendant audio benefits, including the production of more realistic reverberation effects.
@article{bellows2023optimal,
author={bellows, samuel d. and leishman, timothy w.},
journal={journal of the audio engineering society},
title={optimal microphone placement for single-channel sound-power spectrum estimation and reverberation effects},
year={2023},
volume={71},
number={1/2},
pages={20-33},
doi={https://doi.org/10.17743/jaes.2022.0052},
month={january},}
@article{bellows2023optimal,
author={bellows, samuel d. and leishman, timothy w.},
journal={journal of the audio engineering society},
title={optimal microphone placement for single-channel sound-power spectrum estimation and reverberation effects},
year={2023},
volume={71},
number={1/2},
pages={20-33},
doi={https://doi.org/10.17743/jaes.2022.0052},
month={january},
abstract={the sound power produced by an acoustic source comprises its total sound energy radiated in all directions per unit time. as the global emission, it excites the reverberant field of a surrounding room. conversely, an acoustic signal detected for audio applications, including driving reverberation effects, often results from a microphone at a discrete location that does not capture the global source sound and its sound-power spectrum. this paper explores several physical bases for how measured high-resolution spherical directivity functions and known room conditions allow audio engineers to optimize a microphone position to yield a signal with a mean-squared spectrum best approximating the time-averaged sound-power spectrum. the proposed approaches provide means to capture the global source sound with its attendant audio benefits, including the production of more realistic reverberation effects.},}
TY - paper
TI - Optimal Microphone Placement for Single-Channel Sound-Power Spectrum Estimation and Reverberation Effects
SP - 20
EP - 33
AU - Bellows, Samuel D.
AU - Leishman, Timothy W.
PY - 2023
JO - Journal of the Audio Engineering Society
IS - 1/2
VO - 71
VL - 71
Y1 - January 2023
TY - paper
TI - Optimal Microphone Placement for Single-Channel Sound-Power Spectrum Estimation and Reverberation Effects
SP - 20
EP - 33
AU - Bellows, Samuel D.
AU - Leishman, Timothy W.
PY - 2023
JO - Journal of the Audio Engineering Society
IS - 1/2
VO - 71
VL - 71
Y1 - January 2023
AB - The sound power produced by an acoustic source comprises its total sound energy radiated in all directions per unit time. As the global emission, it excites the reverberant field of a surrounding room. Conversely, an acoustic signal detected for audio applications, including driving reverberation effects, often results from a microphone at a discrete location that does not capture the global source sound and its sound-power spectrum. This paper explores several physical bases for how measured high-resolution spherical directivity functions and known room conditions allow audio engineers to optimize a microphone position to yield a signal with a mean-squared spectrum best approximating the time-averaged sound-power spectrum. The proposed approaches provide means to capture the global source sound with its attendant audio benefits, including the production of more realistic reverberation effects.
The sound power produced by an acoustic source comprises its total sound energy radiated in all directions per unit time. As the global emission, it excites the reverberant field of a surrounding room. Conversely, an acoustic signal detected for audio applications, including driving reverberation effects, often results from a microphone at a discrete location that does not capture the global source sound and its sound-power spectrum. This paper explores several physical bases for how measured high-resolution spherical directivity functions and known room conditions allow audio engineers to optimize a microphone position to yield a signal with a mean-squared spectrum best approximating the time-averaged sound-power spectrum. The proposed approaches provide means to capture the global source sound with its attendant audio benefits, including the production of more realistic reverberation effects.
Authors:
Bellows, Samuel D.; Leishman, Timothy W.
Affiliation:
Acoustics Research Group, Department of Physics and Astronomy, Brigham Young University, Provo, UT JAES Volume 71 Issue 1/2 pp. 20-33; January 2023
Publication Date:
January 16, 2023Import into BibTeX
Permalink:
http://www.aes.org/e-lib/browse.cfm?elib=22028