This paper proposed a pitch quantization method for low bit-rate speech coding systems.

本文提出了一种适用于低速率语音编码系统的基音周期量化算法。

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In order to improve compression ratio, the combination of lossy and lossless coding method is used in video coding systems.

为了提高压缩率，视频编码技术中一般会采用有损和无损压缩编码相结合的方式。

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Experiments show that high quality speech coding systems can be realized by utilizing the characteristics of speech signals.

实验表明，利用语音信号本身特征，达到高压缩比同时具有较高合成语音质量是可能的。

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Some firms, including Affectiva, have developed facial coding systems that use webcams and can perform the analysis automatically.

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Computer coding systems convert most Chinese pictorial characters for printing, but some are so rare that they are never assigned a code.

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Boring technology like inventory management, customer relationship and bar coding systems.

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