Title :
A design of error robust scalable coder based on MPEG-4/Audio
Author :
Moriya, Takehiro ; Mori, Takeshi ; Iwakami, Naoki ; Jin, Akio
Author_Institution :
NTT Labs., Tokyo, Japan
Abstract :
This paper proposes a combined design for an error robust and scalable audio coder based on TwinVQ (transform domain weighted interleave vector quantization) object type and EP (error protection) tools defined in MPEG-4/Audio. By combining the inherent error-robustness of TwinVQ, the un-equal error-protection scheme, and the hierarchical scalable coding structure, the distortion is confirmed to be very minor, even in high-error channel conditions at bit rates of 16-32 kbit/s. These structures offer a flexible coding framework which can be used for various types of network/storage environment and applications
Keywords :
audio coding; code standards; coding errors; error detection; telecommunication standards; vector quantisation; MPEG-4/Audio; TwinVQ object type; audio coder; bit rate scalability; error protection tools; error robust scalable coder; error-robustness; flexible coding framework; hierarchical scalable coding structure; high-error channel conditions; interleave vector quantization; transform domain weighted interleave VQ; Audio coding; Bit rate; Distortion measurement; Gold; Laboratories; Linear predictive coding; MPEG 4 Standard; Robustness; Scalability; Vector quantization;
Conference_Titel :
Circuits and Systems, 2000. Proceedings. ISCAS 2000 Geneva. The 2000 IEEE International Symposium on
Conference_Location :
Geneva
Print_ISBN :
0-7803-5482-6
DOI :
10.1109/ISCAS.2000.856034
