Measurement of sound fields using moving microphones

F. Katzberg; R. Mazur; M. Maass; P. Koch; A. Mertins

doi:10.1109/ICASSP.2017.7952753

Measurement of sound fields using moving microphones

F. Katzberg, R. Mazur, M. Maass, P. Koch, A. Mertins

Institute of Signal Processing

Abstract

The sampling of sound fields involves the measurement of spatially dependent room impulse responses, where the Nyquist-Shannon sampling theorem applies in both the temporal and spatial domains. Therefore, sampling inside a volume of interest requires a huge number of sampling points in space, which comes along with further difficulties such as exact microphone positioning and calibration of multiple microphones. In this paper, we present a method for measuring sound fields using moving microphones whose trajectories are known to the algorithm. At that, the number of microphones is customizable by trading measurement effort against sampling time. Through spatial interpolation of the dynamic measurements, a system of linear equations is set up which allows for the reconstruction of the entire sound field inside the volume of interest.

Original language	English
Title of host publication	2017 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)
Number of pages	5
Publisher	IEEE
Publication date	01.03.2017
Pages	3231-3235
Article number	7952753
ISBN (Print)	978-1-5090-4118-3
ISBN (Electronic)	978-1-5090-4117-6
DOIs	https://doi.org/10.1109/ICASSP.2017.7952753
Publication status	Published - 01.03.2017
Event	2017 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) - New Orleans, United States Duration: 05.03.2017 → 09.03.2017

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10.1109/ICASSP.2017.7952753

Cite this

Katzberg, F., Mazur, R., Maass, M., Koch, P., & Mertins, A. (2017). Measurement of sound fields using moving microphones. In 2017 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) (pp. 3231-3235). Article 7952753 (IEEE International Conference on Acoustics, Speech and Signal Processing). IEEE. https://doi.org/10.1109/ICASSP.2017.7952753

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title = "Measurement of sound fields using moving microphones",

abstract = "The sampling of sound fields involves the measurement of spatially dependent room impulse responses, where the Nyquist-Shannon sampling theorem applies in both the temporal and spatial domains. Therefore, sampling inside a volume of interest requires a huge number of sampling points in space, which comes along with further difficulties such as exact microphone positioning and calibration of multiple microphones. In this paper, we present a method for measuring sound fields using moving microphones whose trajectories are known to the algorithm. At that, the number of microphones is customizable by trading measurement effort against sampling time. Through spatial interpolation of the dynamic measurements, a system of linear equations is set up which allows for the reconstruction of the entire sound field inside the volume of interest.",

author = "F. Katzberg and R. Mazur and M. Maass and P. Koch and A. Mertins",

year = "2017",

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doi = "10.1109/ICASSP.2017.7952753",

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note = "2017 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) ; Conference date: 05-03-2017 Through 09-03-2017",

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Katzberg, F, Mazur, R, Maass, M , Koch, P & Mertins, A 2017, Measurement of sound fields using moving microphones. in 2017 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)., 7952753, IEEE International Conference on Acoustics, Speech and Signal Processing, IEEE, pp. 3231-3235, 2017 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), New Orleans, Louisiana, United States, 05.03.17. https://doi.org/10.1109/ICASSP.2017.7952753

Measurement of sound fields using moving microphones. / Katzberg, F.; Mazur, R.; Maass, M. et al.
2017 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP). IEEE, 2017. p. 3231-3235 7952753 (IEEE International Conference on Acoustics, Speech and Signal Processing).

Research output: Chapters in Books/Reports/Conference Proceedings › Conference contribution › peer-review

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T1 - Measurement of sound fields using moving microphones

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AU - Mazur, R.

AU - Maass, M.

AU - Koch, P.

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N2 - The sampling of sound fields involves the measurement of spatially dependent room impulse responses, where the Nyquist-Shannon sampling theorem applies in both the temporal and spatial domains. Therefore, sampling inside a volume of interest requires a huge number of sampling points in space, which comes along with further difficulties such as exact microphone positioning and calibration of multiple microphones. In this paper, we present a method for measuring sound fields using moving microphones whose trajectories are known to the algorithm. At that, the number of microphones is customizable by trading measurement effort against sampling time. Through spatial interpolation of the dynamic measurements, a system of linear equations is set up which allows for the reconstruction of the entire sound field inside the volume of interest.

AB - The sampling of sound fields involves the measurement of spatially dependent room impulse responses, where the Nyquist-Shannon sampling theorem applies in both the temporal and spatial domains. Therefore, sampling inside a volume of interest requires a huge number of sampling points in space, which comes along with further difficulties such as exact microphone positioning and calibration of multiple microphones. In this paper, we present a method for measuring sound fields using moving microphones whose trajectories are known to the algorithm. At that, the number of microphones is customizable by trading measurement effort against sampling time. Through spatial interpolation of the dynamic measurements, a system of linear equations is set up which allows for the reconstruction of the entire sound field inside the volume of interest.

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BT - 2017 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)

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ER -

Measurement of sound fields using moving microphones

Abstract

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New models and approaches for the robust equalization of loudspeaker-room systems

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Measurement of sound fields using moving microphones

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New models and approaches for the robust equalization of loudspeaker-room systems

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