CASIA OpenIR  > 模式识别国家重点实验室  > 语音交互
刘斌; 陶建华; 莫福源
Source Publication信号处理
Other Abstract
A speech coding algorithm applied to narrowband transmission at very low bit rate is proposed. Based
on the MELP standard working at 2.4kbps, joint vector quantization is applied to linear spectrum pair’s
parameters, interpolation and nonlinear quantization are applied to pitch, gain parameters are compressed
efficiently and auditory perception is considered, speech data could be coded and transmitted smoothly at 0.5kbps
The predicative residuals of linear spectrum pair’s parameters are also used for vector quantization; it’s a suitable
way of improving synthetic speech quality. The experimental results reveal that the proposed algorithm can ensure
speech effective transmission at very low bit rate while the intelligibility of received speech is acceptable.
Keyword联合矢量量化 非线性量化 预测残差 听觉感知
Document Type期刊论文
Recommended Citation
GB/T 7714
刘斌,陶建华,莫福源. 面向窄带通信的极低速率语音编码算法研究[J]. 信号处理,2013(9):1134-1138.
APA 刘斌,陶建华,&莫福源.(2013).面向窄带通信的极低速率语音编码算法研究.信号处理(9),1134-1138.
MLA 刘斌,et al."面向窄带通信的极低速率语音编码算法研究".信号处理 .9(2013):1134-1138.
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