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.
| Original language | English |
|---|---|
| Title of host publication | 151st Audio Engineering Society Convention 2021 |
| Publisher | Curran Associates Inc. |
| Pages | 192 - 199 |
| Number of pages | 8 |
| ISBN (Print) | 978-1-7138-3945-3 |
| Publication status | Published - 2021 |
| MoE publication type | A4 Conference publication |
| Event | Audio Engineering Society Convention - Virtual, Online Duration: 13 Oct 2021 → 31 Oct 2021 Conference number: 151 https://aesshow.com |
Conference
| Conference | Audio Engineering Society Convention |
|---|---|
| Abbreviated title | AES |
| City | Virtual, Online |
| Period | 13/10/2021 → 31/10/2021 |
| Internet address |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 8 Decent Work and Economic Growth
Keywords
- ambisonics
- virtual acoustics
- near-field
- audio
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