This article proposes a behavior model of workforce movement based on the disparity analysis in many aspects that exists in urban and rural areas , which shows the economic behaviour reason and its decisive condition of the rural workforce movement , and point out that the fabulosity of change rural backward situation by the rural - urban workforce movement as well as the basic way to narrow disparity in urban and rural areas and solve the urban pressure on employment is to quicken the development of rural economy 在分析城鄉(xiāng)存在的多方面差距的基礎(chǔ)上,提出一個勞動力遷移的行為模型,用以說明農(nóng)村勞動力遷移的經(jīng)濟行為動因及其決定條件,指出完全依靠農(nóng)村城市勞動力遷移來改變農(nóng)村落后局面的不現(xiàn)實性,最后提出加快農(nóng)村發(fā)展是解決城市就業(yè)壓力,縮小城鄉(xiāng)差距的根本之道。
In this paper , combined with currently voice coding technique , espically with the fabulosity development of the mixed voice coding and the increasingly utility of the digital signals processor . we investigated the voice coding technique and discussed emphasizedly the technology of variable rate voice coding technology 本文結(jié)合當(dāng)前語音編碼技術(shù)尤其是混合編碼技術(shù)的驚人發(fā)展及數(shù)字信號處理器的日益實用化,研究了語音編碼技術(shù),并重點討論了變速率語音編碼技術(shù)。論文簡要介紹語音編碼技術(shù)中的波形編碼和聲碼器的主要性能。