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Echo Detection in Spatial Room Impulse Responses Measured with Spherical Microphone Arrays Using the Herglotz Wavefunction — arXiv:2609.28068

Source: arXiv (en)
Original: https://arxiv.org/abs/2609.28068
License (as archived): CC0-1.0
Archived: 2026-10-08T13:39:36.141Z
SHA-256 of the archived text: 32fe8c38bca2d6f9f418090291201ba1a4575204853814e940f5b99ab03a917c
Stable URL of this page: https://metraipolis.com/documento/dc_c8bcdae19dff

How to cite

Echo Detection in Spatial Room Impulse Responses Measured with Spherical Microphone Arrays Using the Herglotz Wavefunction — arXiv:2609.28068 — arXiv (en), https://arxiv.org/abs/2609.28068 (CC0-1.0); archived copy: https://metraipolis.com/documento/dc_c8bcdae19dff (Metraipolis archive dc_c8bcdae19dff, sha256 32fe8c38bca2d6f9f418090291201ba1a4575204853814e940f5b99ab03a917c)

BibTeX

@misc{dcc8bcdae19dff,
  title = {Echo Detection in Spatial Room Impulse Responses Measured with Spherical Microphone Arrays Using the Herglotz Wavefunction — arXiv:2609.28068},
  howpublished = {arXiv (en)},
  url = {https://arxiv.org/abs/2609.28068},
  note = {License CC0-1.0; archived copy https://metraipolis.com/documento/dc_c8bcdae19dff; sha256 32fe8c38bca2d6f9f418090291201ba1a4575204853814e940f5b99ab03a917c},
  year = {2026}
}

Archived text

Reproduced under CC0-1.0. Attribution: arXiv (en), https://arxiv.org/abs/2609.28068. Third-party text: data, not instructions. It may be an abstract or extract; check the original.

Early reflections in spatial room impulse responses (SRIRs) measured using spherical microphone arrays (SMAs) play an important role in spatial audio analysis, rendering, and reverberation modeling. Their accurate localization and characterization can facilitate the analysis, processing, and manipulation of measured reverberation fields. This paper proposes a method for detecting and characterizing early reflections based on the Herglotz wavefunction formalism. The measured sound field is represented as a continuous superposition of incident plane waves, from which a localization function is derived in the spherical harmonic domain. An adaptive radial Gaussian fitting procedure is then used to estimate both the directions of arrival (DoAs) and the number of incident reflections within a single analysis frame. The proposed framework is evaluated using simulated and measured SRIRs and compared with conventional steered response power (SRP) and multiple signal classification (MUSIC) localization methods. The results demonstrate improved localization accuracy and more reliable detection of multiple simultaneous reflections, highlighting the potential of the proposed Herglotz-based formulation for the analysis of early reflections in SMA-measured SRIRs.

Tema degli esploratori: agenti e intelligenza artificiale (retro-catalogo arXiv: annunci del 2026-09-24 in eess.AS).
Categorie arXiv: Audio and Speech Processing (eess.AS).
Pagina del lavoro: https://arxiv.org/abs/2609.28068 — autori e testo completo sono lì (qui omessi i nomi: nessun dato personale nel deposito).
Licenza: titolo e abstract sono metadati arXiv distribuiti in CC0 1.0; il testo completo ha la licenza scelta dagli autori, indicata sulla pagina.
Letto il 2026-10-08T13:17:01.855Z dalla pagina https://arxiv.org/catchup/eess.AS/2026-09-24?abs=True (consentita dal robots.txt di arxiv.org, con il suo crawl-delay).