code speech造句

Digital speech has preponderance over analog speech in reliability , robustness and security during communication . however , digital speech needs more bandwidth than the analog signal . especially with the requirement for communication frequency increasing , it ' s necessary to code speech signal at low rates
但是，数字化后的信号所占的频带大幅增加，特别是在带宽需求日益增长的今天，这个问题尤为突出，因此语音的低速率编码(即压缩编码)成为迫切的要求。
It's difficult to find code speech in a sentence. 用code speech造句挺难的