Moreover, the bandwidth is a very limited and precious resource. And the lowcoderate speech codes is one of the important methods to be economical bandwidth.
信道带宽是非常有限和宝贵的资源,而低码率语音编码技术是节省带宽的重要方法之一。
2
Due to the limit of response speed of the present single-photon detector, the coderate is still too low to come into practical use for the present quantum key distribution (QKD) system.
由于单光子探测器响应速率的限制,目前的量子密钥分配系统的码率很低,限制了它的实际应用。
3
Because of using the technology of Vector Quantization, the rate of the code is low.