상세정보
학술지
A Novel Audio Watermarking Algorithm for Copyright Protection of Digital Audio
- 발행일
- 200208
- 출처
- ETRI Journal, v.24 no.3, pp.181-189
- ISSN
- 1225-6463
- 출판사
- 한국전자통신연구원 (ETRI)
- 협약과제
- 01MR4500, 디지털 컨텐츠 관리기술 개발, 홍진우
- 초록
- Digital watermark technology is now drawing attention as a new method of protecting digital content from unauthorized copying. This paper presents a novel audio watermarking algorithm to protect against unauthorized copying of digital audio. The proposed watermarking scheme includes a psychoacoustic model of MPEG audio coding to ensure that the watermarking does not affect the quality of the original sound. After embedding the watermark, our scheme extracts copyright information without access to the original signal by using a whitening procedure for linear prediction filtering before correlation. Experimental results show that our watermarking scheme is robust against common signal processing attacks and it introduces no audible distortion after watermark insertion.
- KSP 제안 키워드
- Audio coding, Audio watermarking, Copyright protection, Digital Watermark, Digital audio, Digital content, Psychoacoustic Model, Signal Processing, linear prediction filtering, new method, watermarking scheme