By K.R. Rao, Do Nyeon Kim, Jae Jeong Hwang (auth.)
The specifications for multimedia (especially video and audio) communications raise swiftly within the final twenty years in wide components equivalent to tv, leisure, interactive companies, telecommunications, convention, medication, safeguard, enterprise, site visitors, security and banking. Video and audio coding criteria play most vital roles in multimedia communications. on the way to meet those necessities, sequence of video and audio coding criteria were constructed reminiscent of MPEG-2, MPEG-4, MPEG-21 for audio and video via ISO/IEC, H.26x for video and G.72x for audio by way of ITU-T, Video Coder 1 (VC-1) for video via the Society of movie and tv Engineers (SMPTE) and RealVideo (RV) nine for video through actual Networks.
AVS China is the abbreviation for Audio Video Coding commonplace of China. This new regular contains 4 major technical components, that are platforms, video, audio and electronic copyright administration (DRM), and a few helping records equivalent to consistency verification. the second one a part of the normal often called AVS1-P2 (Video - Jizhun) was once licensed because the nationwide average of China in 2006, and a number of other ultimate drafts of the traditional were accomplished, together with AVS1-P1 (System - Broadcast), AVS1-P2 (Video - Zengqiang), AVS1-P3 (Audio - Double track), AVS1-P3 (Audio - 5.1), AVS1-P7 (Mobile Video), AVS-S-P2 (Video) and AVS-S-P3 (Audio). AVS China presents a technical answer for plenty of purposes similar to electronic broadcasting (SDTV and HDTV), high-density garage media, web streaming media, and may be utilized in the family IPTV, satellite tv for pc and doubtless the cable television industry. evaluating with different coding criteria similar to H.264 AVC, some great benefits of AVS video normal contain comparable functionality, reduce complexity, reduce implementation expense and licensing charges. This usual has attracted good deal of recognition from industries regarding tv, multimedia communications or even chip production from all over the world. additionally many popular businesses have joined the AVS crew to be complete individuals or watching contributors. The 163 individuals of AVS workforce comprise Texas tools (TI) Co., Agilent applied sciences Co. Ltd., Envivio Inc., NDS, Philips learn East Asia, Aisino company, LG, Alcatel Shanghai Bell Co. Ltd., Nokia (China) funding (NCIC) Co. Ltd., Sony (China) Ltd., and Toshiba (China) Co. Ltd. in addition to a few excessive point universities in China. hence there's a urgent desire from the teachers, scholars, and engineers for a publication facing the subject of AVS China and its functionality comparisons with related criteria similar to H.264, VC-1 and RV-9.
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Additional info for Video coding standards: AVS China, H.264/MPEG-4 PART 10, HEVC, VP6, DIRAC and VC-1
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7 Performance Comparison Metrics for Audio Codec 31 (a) (b) Fig. 13 MPEG audio codec [O12] Ó 1995 IEEE. a Encoder. b Decoder (a) (b) Fig. 14 AVS audio codec [N2] Ó IEEE 2005. a Encoder. 7 Performance Comparison Metrics for Audio Codec Like the performance evaluation of video codecs, several aspects including bit rate for each channel, computational cost (or complexity) and quality should also be considered to evaluate the performances of audio codecs. The unit of bit rate is also bits per second (bps or bits/s) as for video.
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