Frequency-Dependent Directional Feedback Delay Network
Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Scientific › peer-review
Details
Original language | English |
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Title of host publication | 2020 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) |
Publisher | IEEE |
ISBN (Electronic) | 978-1-5090-6631-5 |
DOIs | |
Publication status | Published - 4 May 2020 |
Publication type | A4 Article in a conference publication |
Event | International Conference on Acoustics, Speech, and Signal Processing - Virtual, Barcelona, Spain Duration: 4 May 2020 → 8 May 2020 Conference number: 45th https://2020.ieeeicassp.org/ |
Conference
Conference | International Conference on Acoustics, Speech, and Signal Processing |
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Abbreviated title | ICASSP 2020 |
Country | Spain |
City | Barcelona |
Period | 4/05/20 → 8/05/20 |
Internet address |
Abstract
A recent publication introduced the Directional Feedback Delay Network, a parametric artificial reverberation algorithm capable of producing direction-dependent energy decay. This method extends the capabilities of Feedback Delay Networks by using multichannel delay-line groups and a spatial transform to produce direction-dependent reverberation in the Ambisonics domain. In this paper, we present a modified formulation of the Directional Feedback Delay Network method that allows both frequency-and direction-dependent reverberation. Multichannel delay-line groups are used to manipulate signals incident on a spherical grid through independent recursive signal paths, while an early reflection module gives a physically-motivated spatial distribution of input signals in the system. The overall number of delay lines is reduced from the previous formulation, and the design allows flexibility to favor a lower computational cost over accuracy.
Publication forum classification
Field of science, Statistics Finland
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