Frequency-Dependent Directional Feedback Delay Network
Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Scientific › peer-review
Details
| Original language | English |
|---|---|
| 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 |
|---|---|
| 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.