BROWSE
Detail
Registered METHOD FOR GENERATING FILTER FOR AUDIO SIGNAL AND PARAMETERIZING DEVICE THEREFOR
- Inventors
- Jeongil Seo, Lee Yong Ju, Kang Kyeongok, Beack Seung Kwon, Jang Dae Young, Jin Woong Kim, 이태규, 오현오, 박영철, 윤대희
- Application No.
- 16224820 (2018.12.19)
- Publication No.
- 20190122676 (2019.04.25)
- Registration No.
- 10692508 (2020.06.23)
- Country
- UNITED STATES
- Project Code
- 13PR3700, Development of Multiview 3D Compatible UHDTV Broadcasting Technology, Jin Woong Kim
- Abstract
- The present invention relates to a method and an apparatus for processing a signal, which are used to effectively reproduce an audio signal, and more particularly, to a method for generating a filter for an audio signal, which are used for implementing a filtering for input audio signals with a low computational complexity and a parameterization apparatus therefor. To this end, provided are a method for generating a filter of an audio signal, including: receiving at least one proto-type filter coefficient for filtering each subband signal of an input audio signal; converting the proto-type filter coefficient into a plurality of subband filter coefficients; truncating each of the subband filter coefficients based on filter order information obtained by at least partially using characteristic information extracted from the corresponding subband filter coefficients, the length of at least one truncated subband filter coefficients being different from the length of truncated subband filter coefficients of another subband; and generating FFT filter coefficients by fast Fourier transforming (FFT) the truncated subband filter coefficients by a predetermined block size in the corresponding subband and a parameterization unit using the same.
- KSP Keywords
- Audio signal, Block size, Computational complexity, FFT filter, Fast Fourier, Filter coefficients, Low computational complexity, characteristic information, filter order, order information
- Family
| Status | Patent | Country | KIPRIS |
|---|---|---|---|
| Registered | 오디오 신호의 필터 생성 방법 및 이를 위한 파라메터화 장치 | KOREA | |
| Registered | METHOD FOR GENERATING FILTER FOR AUDIO SIGNAL AND PARAMETERIZING DEVICE THEREFOR | GERMANY | |
| Registered | METHOD FOR GENERATING FILTER FOR AUDIO SIGNAL AND PARAMETERIZING DEVICE THEREFOR | UNITED STATES | |
| Registered | METHOD FOR GENERATING FILTER FOR AUDIO SIGNAL AND PARAMETERIZING DEVICE THEREFOR | UNITED KINGDOM | |
| Registered | METHOD FOR GENERATING FILTER FOR AUDIO SIGNAL AND PARAMETERIZING DEVICE THEREFOR | CHINA | |
| Registered | METHOD FOR GENERATING FILTER FOR AUDIO SIGNAL AND PARAMETERIZING DEVICE THEREFOR | CHINA | |
| Registered | METHOD FOR GENERATING FILTER FOR AUDIO SIGNAL AND PARAMETERIZING DEVICE THEREFOR | FRANCE |