A Novel Audio Codec for Mobile Multimedia Applications

During the last decade, new mobile multimedia applications have emerged for mobile and network multimedia, wireless multimedia communication, audio/video teleconferencing, remote assistance, digital storage systems, secure audio transmission and so on. In order to meet these requirements, tremendous research efforts have been put in the development of efficient digital audio coding technologies. In China, AVS-M audio standard is such an audio technology targeting for mobile multimedia applications which is developed and owned by China Audio and Video Coding Standard Workgroup. In this paper, AVS-M audio standard is discussed by revealing the technical principles of the en- and decoding, the standardization situation and the suitability of the codec in relation to technology available, economical feasibility and the market needs. Finally it concludes with a brief discussion of future research directions.