A design of error robust scalable coder based on MPEG-4/Audio
Takehiro Moriya, T. Mori, Naoki Iwakami, Akio Jin · 2002
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.