Conference/Proceedings18th International Congress on Acoustics
Start dateApril 2004
Author(s)T. Moriya, D. Yang, Tilman Liebchen
TitleA Design of Lossless Compression for High Quality Audio Signals
AbstractThree extension tools for extending and enhancing the compression performance of prediction-based lossless audio coding are proposed. The first extension aims at supporting floatingpoint data input in addition to integer PCM data. The second is progressive-order prediction of the starting samples at each random-access frame, where the information on previous frame is not available. The third is inter-channel joint coding. Both predictive coefficients and prediction-error signals are efficiently coded making use of the inter-channel correlation. These new prediction tools will contribute to enhance the for the coming MPEG-4 Audio Lossless Coding (ALS) scheme, currently being under development as an extension of the ISO/IEC MPEG-4 audio standard
NoteT. Moriya: NTT Cyber Space Labs; D. Yang: University of Southern California