例句與造句

1. Signal processing for acoustic echo control includes modeling of reverberation , design of dereverberation algorithms , echo suppression , double - talk detection and adaptive acoustic echo cancellation , which is still a challenging problem in stereo full - duplex communication environments [ 3 . 53 ]
   聲學回聲控制的信號處理包括回響模型、消回響算法設計、回聲抑制、雙方講話檢測以及適應回聲消除，這仍然是立體聲全雙工通信環(huán)境中富有挑戰(zhàn)性的問題。
2. Hands - free speech communication is indispensable in audio and video conference systems , hot - line telephones and videophones , mobile radio terminals , digital isdn network etc . however , the control ( cancellation ) of the acoustic echo has always had a strong impact on the transmission quality in hands - free telecommunication ~ [ 1 - 3 ] conventional methods of acoustic echo control ( cancellation ) , such as echo suppression or gain control , may lead to the degradations in speech quality or make the speakers feel uncomfortable
   免提式話音通信在移動電話、熱線電話、車載電話及isdn網(wǎng)的電視電話會議等多種領域正得到日益廣泛的應用。但至今的免提式話音通信中，仍免不了受回聲引起的話音失真、甚至嘯叫等干擾，大大降低了免提話音通信的質(zhì)量。由于聲回波對消問題尚未得到圓滿解決，實現(xiàn)高質(zhì)量的免提式話音通信仍是一個極賦挑戰(zhàn)性的課題。
3. It's difficult to find echo suppression in a sentence. 用echo suppression造句挺難的