Method and apparatus for binaural rendering audio signal using variable order filtering in frequency domain
US12014744B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Nov 2, 2021 |
| Grant date | Jun 18, 2024 |
| Priority date | — |
| Expiry date | Aug 26, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04S2420/03
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention relates to a method and an apparatus for binaural rendering an audio signal using variable order filtering in frequency domain. To this end, provided are a method for processing an audio signal including: receiving an input audio signal; receiving a set of truncated subband filter coefficients for filtering each subband signal of the input audio signal, the set of truncated subband filter coefficients being constituted by one or more FFT filter coefficients generated by performing FFT by a predetermined block size; generating at least one subframe for each subband; generating at least one filtered subframe for each subband; performing inverse FFT on the filtered subframe for each subband; and generating a filtered subband signal by overlap-adding the transformed subframe for each subband and an apparatus for processing an audio signal using the same.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.