Bayesian Sound Field Estimation Using Moving Microphones
A sound field estimation method using moving microphones is proposed. The sound field is modelled with an infinite sequence of spherical harmonic coefficients for each frequency in the discrete Fourier transform domain, and the harmonic coefficients are estimated using Bayesian inference. The propos...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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IEEE
2025-01-01
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| Series: | IEEE Open Journal of Signal Processing |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/10830478/ |
| _version_ | 1826580987720499200 |
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| author | Jesper Brunnstrom Martin Bo moLler Marc Moonen |
| author_facet | Jesper Brunnstrom Martin Bo moLler Marc Moonen |
| author_sort | Jesper Brunnstrom |
| collection | DOAJ |
| description | A sound field estimation method using moving microphones is proposed. The sound field is modelled with an infinite sequence of spherical harmonic coefficients for each frequency in the discrete Fourier transform domain, and the harmonic coefficients are estimated using Bayesian inference. The proposed method allows for the use of microphones with arbitrary directivities and moving along any trajectory. It can also be adapted for simultaneous measurement with multiple loudspeakers. The approach avoids truncation of the harmonic coefficients, as well as the specification of an expansion center. The proposed method is evaluated through simulations and compared against other state-of-the-art methods. The proposed method is shown to produce estimates with low error, and can be applied in a wider range of situations compared to other methods. |
| first_indexed | 2025-03-14T14:42:54Z |
| format | Article |
| id | doaj.art-d8d9d38c22c24353b2791544e56c55f0 |
| institution | Directory Open Access Journal |
| issn | 2644-1322 |
| language | English |
| last_indexed | 2025-03-14T14:42:54Z |
| publishDate | 2025-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Open Journal of Signal Processing |
| spelling | doaj.art-d8d9d38c22c24353b2791544e56c55f02025-02-26T00:01:32ZengIEEEIEEE Open Journal of Signal Processing2644-13222025-01-01631232210.1109/OJSP.2025.352654610830478Bayesian Sound Field Estimation Using Moving MicrophonesJesper Brunnstrom0https://orcid.org/0000-0003-2946-1268Martin Bo moLler1https://orcid.org/0000-0002-7323-7266Marc Moonen2https://orcid.org/0000-0003-4461-0073STADIUS Center for Dynamical Systems, Department of Electrical Engineering (ESAT), KU Leuven, Leuven, BelgiumBang & Olufsen, Acoustics R&D, Struer, DenmarkSTADIUS Center for Dynamical Systems, Department of Electrical Engineering (ESAT), KU Leuven, Leuven, BelgiumA sound field estimation method using moving microphones is proposed. The sound field is modelled with an infinite sequence of spherical harmonic coefficients for each frequency in the discrete Fourier transform domain, and the harmonic coefficients are estimated using Bayesian inference. The proposed method allows for the use of microphones with arbitrary directivities and moving along any trajectory. It can also be adapted for simultaneous measurement with multiple loudspeakers. The approach avoids truncation of the harmonic coefficients, as well as the specification of an expansion center. The proposed method is evaluated through simulations and compared against other state-of-the-art methods. The proposed method is shown to produce estimates with low error, and can be applied in a wider range of situations compared to other methods.https://ieeexplore.ieee.org/document/10830478/Sound field estimationmoving microphonespherical harmonicsBayesian inferenceHilbert space |
| spellingShingle | Jesper Brunnstrom Martin Bo moLler Marc Moonen Bayesian Sound Field Estimation Using Moving Microphones IEEE Open Journal of Signal Processing Sound field estimation moving microphone spherical harmonics Bayesian inference Hilbert space |
| title | Bayesian Sound Field Estimation Using Moving Microphones |
| title_full | Bayesian Sound Field Estimation Using Moving Microphones |
| title_fullStr | Bayesian Sound Field Estimation Using Moving Microphones |
| title_full_unstemmed | Bayesian Sound Field Estimation Using Moving Microphones |
| title_short | Bayesian Sound Field Estimation Using Moving Microphones |
| title_sort | bayesian sound field estimation using moving microphones |
| topic | Sound field estimation moving microphone spherical harmonics Bayesian inference Hilbert space |
| url | https://ieeexplore.ieee.org/document/10830478/ |
| work_keys_str_mv | AT jesperbrunnstrom bayesiansoundfieldestimationusingmovingmicrophones AT martinbomoller bayesiansoundfieldestimationusingmovingmicrophones AT marcmoonen bayesiansoundfieldestimationusingmovingmicrophones |