七音節的字 的英文怎麼說
中文拼音 [qīyīnjiédezì]
七音節的字
英文
heptasyllable-
The achievement of modifications on source - code was summarized as well. chapter one briefly introduced current developing status of audio coding techniques and the structure of this paper ; then chapter two shortly described the history of ogg vorbis and its technical process flow ; the data process and parameters calculations before vorbis quantization were discussed in chapter three ; and the details about vorbis quantization were shown in chapter four ; the following chapter five researched the process of vorbis decoding ; in chapter six, i derived and provided a unified implement structure on mdct and modified the source - code ; chapter seven is about some experiments where i compared and analyzed to finally present a summary on ogg vorbis encoding performance and the results on code modifications
論文第一章敘述了數字音頻壓縮技術發展狀況、音頻標準、主流音頻格式、各音頻格式存在的問題以及對本論文組織結構的簡要說明;第二章簡要介紹了oggvorbis音頻格式的概況和編解碼的技術結構;第三章詳細介紹了voibis演算法編碼過程中量化處理之前的數據處理和參數計算;第四章詳細介紹了voibis演算法編碼過程中的量化處理;第五章結合源代碼詳細介紹了vorbis演算法的解碼過程;第六章中對oggvorbis的mdct運算模塊提出一種統一實現方案，同時對代碼進行了修改;第七章將oggvorbis音頻與主流音頻格式mp3及aac進行了對比測試，對vorbis整體編碼性能和前面章節中代碼的修改作出了總結。
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