radio echo methods 中文意思是什麼

radio echo methods 解釋
無線電回波法
  • radio : n. 1. 無線電訊[電報,電話];無線電,射電。2. 無線電廣播;無線電(廣播)臺。3. 收音機。vt. ,vi. 用無線電傳送[廣播];(向…)作無線電廣播[傳送];用X射線拍照;用鐳醫治。
  • echo : n (pl echoes)1 回聲,反響;共鳴,反映。2 重復,摹仿;摹仿者;應聲蟲。3 【音韻學】與上句末音押韻...
  • methods : (方法):是指定給對象的函數。在函數被指定給對象之後,該函數就可以被稱為是該對象的方法。
  1. 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量。由於聲回波對消問題尚未得到圓滿解決,實現高質量的免提式話音通信仍是一個極賦挑戰性的課題。
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