Abstract
Higher-order Ambisonics (HOA) is a flexible recording and reproduction method, which makes it attractive for several applications in virtual and augmented reality. However, the recording of HOA signals with practical compact microphone arrays is limited to a certain frequency range, which depends on the applied microphone array. In this paper, we present a parametric signal-dependent approach that improves the HOA signals at all frequencies. The presented method assumes that the sound field consists of multiple directional components and a diffuse part. The performance of the method is evaluated in simulations with a rigid microphone array in different direct-to-diffuse and signal-to-noise ratio conditions. The results show that the proposed method has a better performance than the traditional signal-dependent encoding in all the simulated conditions.
Original language | English |
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Title of host publication | 144th Audio Engineering Society International Convention 2018 |
Publisher | Audio Engineering Society |
Pages | 304-313 |
ISBN (Print) | 9781510864740 |
Publication status | Published - 1 Jan 2018 |
MoE publication type | A4 Article in a conference publication |
Event | Audio Engineering Society Convention - Milan, Italy Duration: 23 May 2018 → 26 May 2018 Conference number: 144 |
Conference
Conference | Audio Engineering Society Convention |
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Abbreviated title | AES |
Country/Territory | Italy |
City | Milan |
Period | 23/05/2018 → 26/05/2018 |
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Aalto Acoustics Lab
Ville Pulkki (Manager)
School of Electrical EngineeringFacility/equipment: Facility