4.1萬(wàn)字 56頁(yè) 有設(shè)計(jì)代碼
摘要

系統(tǒng)分為錄制語(yǔ)音及壓縮兩個(gè)模塊，使用Visual C++ 6.0編寫。本文介紹了語(yǔ)音信號(hào)預(yù)測(cè)編碼的數(shù)據(jù)壓縮算法研究的許多方面，主要集中在語(yǔ)音編碼的一些主要觀念和設(shè)計(jì)的思想和實(shí)現(xiàn)方法，提供了語(yǔ)音編碼方面研究的概論，各種語(yǔ)音編碼技術(shù)以及G.7xx標(biāo)準(zhǔn)，還詳細(xì)地?cái)⑹隽擞嘘P(guān)預(yù)測(cè)編碼以及ADPCM的相關(guān)知識(shí)，設(shè)計(jì)了一個(gè)在達(dá)到一定壓縮比的前提下，具有較高語(yǔ)音質(zhì)量的，用以實(shí)現(xiàn)進(jìn)行語(yǔ)音壓縮的軟件。

關(guān)鍵詞：語(yǔ)音信號(hào)，數(shù)據(jù)壓縮，預(yù)測(cè)編碼，ADPCM



ABSTRACT

The data compression system is divided into two modules，voice record and compression, which is using Visual C + + 6.0 to program. This paper, in the respect of a lot of being going to introduce that speech signal predictive code data compression algorithm, is focusing on some main concept of speech coding and the designing thought and realization method. It have provided the introduction of various speech coding technology and the G.7xx standards, also have narrated relevance knowledge about predictive coding and ADPCM detailed, and have designed a software for the realization of speech compression in a certain compression ratio on the premise that high voice quality of speech.

KEY WORDS speech coding, data compression, predictive coding, ADPCM
目錄
摘要 I
ABSTRACT II
第一章 緒論
第二章 語(yǔ)音預(yù)測(cè)編碼的壓縮依據(jù)及標(biāo)準(zhǔn)
第三章 語(yǔ)音信號(hào)預(yù)測(cè)編碼的算法基礎(chǔ)
3.1預(yù)測(cè)編碼(Prediction Coding)
3.2差分脈沖編碼調(diào)制(DPCM)
3.3自適應(yīng)差分脈沖編碼調(diào)制(ADPCM)
第四章 語(yǔ)音預(yù)測(cè)編碼的壓縮系統(tǒng)
4.1總體設(shè)計(jì)
4.1.1 整體思想
4.1.2 程序功能模塊
4.2模塊的設(shè)計(jì)與實(shí)現(xiàn)
4.2.1 壓縮模塊
4.2.2 錄音模塊
4.3設(shè)計(jì)介紹
第五章 總結(jié)
參考文獻(xiàn)
致謝
附錄