After two days of silence ground control teams received a signal that the spacecraft had put itself into an emergency standby mode.
经过两天的沉默，地面控制队接到信号的飞船把自己变成了紧急待命模式。
A normal voice signal, in general, contains some silence, the quiet part can reach 60% ratio in the two-way conversation.
正常语音信号中，一般包含有静音部分，在双向交谈中静音部分能达到60%的比例。
She put her finger to her lips to signal silence.
她把手放到唇上以示不让人作声。
Mary put a finger to her lips to signal silence.
玛丽把手指放在唇边示意别出声。
These algorithms are used during silence periods of speech to reduce ratio of transmission and improve ratio of use in signal channel. It's a best silence compression scheme for G. 729.
这些算法应用于语音中的静音期间以进一步降低传输速率和提高信道利用率，是为G.729研究的最佳静音压缩方案。
These algorithms are used during silence periods of speech to reduce ratio of transmission and improve ratio of use in signal channel. It's a best silence compression scheme for G. 729.
这些算法应用于语音中的静音期间以进一步降低传输速率和提高信道利用率，是为G.729研究的最佳静音压缩方案。
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