등록
QMF대역 가변길이필터를 이용한 바이노럴 신호 생성방법
- 발명자
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서정일, 이용주, 강경옥, 백승권, 김진웅, 장대영, 이태규, 오현오, 박영철, 윤대희
- 출원번호
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17517630 (2021.11.02)
- 공개번호
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20220059105 (2022.02.24)
- 등록번호
- 12014744 (2024.06.18)
- 출원국
- 미국
- 협약과제
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13PR3700, 무안경 다시점 3D지원 UHDTV 방송 기술 개발,
김진웅
- 초록
- 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.
- KSP 제안 키워드
- Audio signal, Block size, FFT filter, Filter coefficients, Variable order, frequency domain(FD)
- 패밀리
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