Techniques and developments of MPEG audio
-
摘要: MPEG(Moving Pictures Experts Group)系列标准由ISO/IEC制订,是计算机多媒体应用最广泛的国际标准之一.MPEG音频作为标准的重要内容,其发展经历了内容表示、内容描述以及互操作应用框架等阶段.然而,作为支撑技术,更高效的编码方法和更精确的描述手段仍然是当前研究工作的重点.综合分析了MPEG系列标准中音频技术的现状,并提出和讨论了进一步研究中需要解决的若干技术问题.Abstract: Moving pictures experts group(MPEG) series standards have become one of the most popular families in the field of multimedia application. MPEG audio is an elementary part of these standards. With the normalization of new standards such as MPEG-4/7/21 in the recent several years, a novel multimedia application interoperability framework will be founded. However, many attentions should still be concentrated on improving the efficiency of audio coding and on mining more precise content-based description methods. A detailed review of the techniques and developments of MPEG audio standards was made, and possible problems of existing standards were pointed out. The conclusion and a brief description of the perspectives of MPEG audio were given.
-
Key words:
- psychoacoustic /
- voice coding /
- sound masking /
- intellectual property /
- interoperability
-
[1] ISO. ISO/IEC 11172-3, Coding of moving pictures and associated audio for digital storage media at up to about 1.5Mbps, part 3:audio .1993 [2] ISO. ISO/IEC 13818-3, Generic coding of moving pictures and associated audio information, part 3:audio[S] 1998 [3] ISO. ISO/IEC 13818-5/Amd.1, Generic coding of moving pictures and associated audio information, part 3:audio amd.1[S] 1999 [4] Zwicker E. Masking and psychological excitation as consequences of the ear's frequency analysis . Frequency Analysis and Periodicity Detection in Hearing . Lieden:Sijthoff, 1970. 376~396 [5] Tai H M. MPEG-4 parametric audio coding and its implementation . Proc of IECON'99 . California:IEEE, 1999. 762~766 [6] ISO. ISO/IEC 14496-3/AMD.1, Very low bitrate audio-visual coding, part 3:audio amd.1[S] 1999 [7] ISO. ISO/IEC 14496-3, Very low bitrate audio-visual coding, part 3:audio[S] 1998 [8] Schulyer R. Coding of natual audio in MPEG-4 . Proc of ICASSP'98 . Washington:IEEE, 1998. 3797~3800 [9] Scheirer E. Structured audio and effect processing in the MPEG-4 multimedia standard[J] Multimedia Systems, 1999, 7(1):11~22 [10] Scheirer E. Synthetic and SNHC audio in MPEG-4[J] Signal Processing:Image Communication, 2000, 15(4):445~461 [11] Scheirer E, Vaananen R. AudioBIFS:Describing audio scenes with the MPEG-4 multimedia standard[J] IEEE Transaction on Multimedia, 1999, 1(3):237~250 [12] ISO.ISO/IEC CD 15938-4, Multimedia content description interface, part 4:audio[S] 001 [13] Nack F. Everything you want to know about MPEG-7[J] IEEE Multimedia, 1999, 6(4):64~73 [14] ISO. ISO/IEC CD 21000-4:2001, Coding of audio-visual objects, part 4:IPMP[S] 2001 [15] Lacy J, Rump N, Kudumakis P. MPEG-4 IPMP overview & applications . ISO/IEC JTC1/SC29/WG11 N2614, 1998 [16] Keith W. AAC:life beyond MP3[J] Hi-Fi News, 2000, 10:68~72 -
点击查看大图
计量
- 文章访问数: 2889
- HTML全文浏览量: 93
- PDF下载量: 1260
- 被引次数: 0
下载:
