Extension and complexity reduction of TwinVQ audio coder
Extension and complexity reduction of TwinVQ audio coder
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TwinVQ音频编码器的扩展和复杂性降低
DOI：
10.1109/icassp.1996.543299
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发表时间：
1996
期刊：
影响因子：
--
通讯作者：
S. Miki
中科院分区：
文献类型：
--
作者：
T. Moriya;N. Iwakami;K. Ikeda;S. Miki
本文提出了两种新的变换域加权交织VQ （twinVQ）高质量音频编码方案，其编码速率低于64kbit /s。一种是将加权交织技术扩展到时域和输入信道域以及频域。另一种是利用插值平方根线性预测编码（LPC）谱表示频谱包络的有效方案。
This paper proposes two novel techniques for twinVQ (transform domain weighted interleave VQ) high-quality audio coding scheme for rates lower than 64 kbit/s. One is an extension of the weighted interleave technique to the time and input channel domains as well as the frequency domain. The other is an efficient representation scheme of the spectral envelope by means of a interpolated square root LPC (linear predictive coding) spectrum.