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R. Gonzalez, and PO. AR. Politis Archontis, T. Lokki, "Effects of Near-field Sources on Ambisonics Recording and Playback," Paper 10526, (2021 October.). doi: R. Gonzalez, and PO. AR. Politis Archontis, T. Lokki, "Effects of Near-field Sources on Ambisonics Recording and Playback," Paper 10526, (2021 October.). doi:
Abstract: Ambisonic recording with spherical microphone arrays (SMAs) is based on a far-field assumption which determines how microphone signals are encoded into Ambisonic signals. In the presence of a near-field source, low-frequency distance-dependent boosts arise in SMAs in similar nature to proximity effects in far-field equalized directional microphones. In this study, the effects of near-field sources on Ambisonic signals are modelled analytically, their interaction with regularization stages is observed, and then traced further across to two basic ambisonic processing operations: virtual microphones, and binaural decoding.

@article{gonzalez2021effects,
author={gonzalez, raimundo and politis archontis and lokki, tapio},
journal={journal of the audio engineering society},
title={effects of near-field sources on ambisonics recording and playback},
year={2021},
volume={},
number={},
pages={},
doi={},
month={october},} @article{gonzalez2021effects,
author={gonzalez, raimundo and politis archontis and lokki, tapio},
journal={journal of the audio engineering society},
title={effects of near-field sources on ambisonics recording and playback},
year={2021},
volume={},
number={},
pages={},
doi={},
month={october},
abstract={ambisonic recording with spherical microphone arrays (smas) is based on a far-field assumption which determines how microphone signals are encoded into ambisonic signals. in the presence of a near-field source, low-frequency distance-dependent boosts arise in smas in similar nature to proximity effects in far-field equalized directional microphones. in this study, the effects of near-field sources on ambisonic signals are modelled analytically, their interaction with regularization stages is observed, and then traced further across to two basic ambisonic processing operations: virtual microphones, and binaural decoding.},}

TY - paper
TI - Effects of Near-field Sources on Ambisonics Recording and Playback
SP - EP -
AU - Gonzalez, Raimundo
AU - Politis Archontis
AU - Lokki, Tapio
PY - 2021
JO - Journal of the Audio Engineering Society
IS -
VO -
VL -
Y1 - October 2021 TY - paper
TI - Effects of Near-field Sources on Ambisonics Recording and Playback
SP - EP -
AU - Gonzalez, Raimundo
AU - Politis Archontis
AU - Lokki, Tapio
PY - 2021
JO - Journal of the Audio Engineering Society
IS -
VO -
VL -
Y1 - October 2021
AB - Ambisonic recording with spherical microphone arrays (SMAs) is based on a far-field assumption which determines how microphone signals are encoded into Ambisonic signals. In the presence of a near-field source, low-frequency distance-dependent boosts arise in SMAs in similar nature to proximity effects in far-field equalized directional microphones. In this study, the effects of near-field sources on Ambisonic signals are modelled analytically, their interaction with regularization stages is observed, and then traced further across to two basic ambisonic processing operations: virtual microphones, and binaural decoding.