嵌入式系統之多聲道WAVE檔音源輸出研究與實現｜國立臺灣科技大學博碩士論文系統

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研究生：	張世昌 Shih-Chang Chang
論文名稱：	嵌入式系統之多聲道WAVE檔音源輸出研究與實現 Design and Implementation of Multi-Channel WAVE-Format Audio Output in an Embedded System
指導教授：	林昌鴻 Chang-Hong Lin
口試委員:	陳維美 Wei-Mei Chen 沈中安 Chung-An Shen 林其誼 Chi-Yi Lin
學位類別：	碩士 Master
系所名稱：	電資學院 - 電子工程系 Department of Electronic and Computer Engineering
論文出版年：	2015
畢業學年度：	103
語文別：	中文
論文頁數：	102
中文關鍵詞：	WAVE檔、嵌入式系統、音源輸出、多聲道、5.1聲道
外文關鍵詞：	WAVE file, audio output, I2S, 5.1 channel
相關次數：	點閱：173 下載：2
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現今數位資訊時代，隨著科技產業不斷推陳出新，人類對多媒體影音的需求也越來越重視。其中聲音訊號是最基本及原始溝通與訊息傳遞的媒介之一，也是人類彼此最重要的溝通橋樑。而如有身(聲)歷其境的環境則更能讓人們更清楚感受到訊息與資訊的真實性。
本論文將透過目前市場上主流的ARM Cortex-M微控器，來解析5.1多聲道WAVE檔資料格式，並透過此嵌入式系統讀取出多聲道之脈衝編碼調變(PCM)資料，隨後透過I2S介面傳輸至後端DAC解碼輸出。在多聲道資料處理上利用軟體演算法將各聲道資料重組後輸出，因為錯誤的聲道資料輸出將導致聲音失真不連續。本文將逐步解析多聲道WAVE檔的資料並正確的將PCM資料輸出至每一聲道。

As the innovations in the technology industry keep on growing, the demands of multimedia in everyday life increase tremendously in the digital information era. Among them, the audio signal is a basic and native interface for communication and information delivery, as well as an important message exchange channel to human beings. An immersive sound environment can help people feel more clearly about the authenticity of the message and information.
In this thesis, the ARM Cortex-M micro-processor, which is a popular platform in embedded system, is used to implement a multi-channel WAVE-format audio output system. The purpose of this study is to analyze the 5.1 multi-channel audio data format and generate PCM data output to back-end DAC through the I2S (Inter-IC Sound) interface. A software algorithm is needed to reallocate multi-channel data to the output because wrong data output will cause the audio distortion and intermittent signals. In this thesis, a systematic way of how to correctly parse the multi-channel WAVE file format is presented.

摘要 ............................................................ i
Abstract ........................................................ii
誌謝 ...........................................................iii
目錄 ............................................................iv
圖目錄 ..........................................................vi
表目錄 ........................................................ viii
第一章 導論 ..................................................... 1
1 前言 ....................................................... 1
2 研究動機 ................................................... 1
3 論文實現與貢獻 ............................................. 2
4 論文架構 ................................................... 2
第二章 各類音訊檔格式介紹 ........................................ 3
1 音頻數位化 ................................................. 3
2 各類音訊檔格式 ............................................. 4
3 音訊壓縮無損格式............................................10
4 壓縮有損格式 ...............................................11
3 WAVE 檔格式介紹.............................................14
3.1 RIFF 資源交換檔案標準介紹 ...............................14
4 WAVE 檔各組塊(Chunk)介紹 ....................................15
4.1 Format Chunk – “fmt”組塊介紹 .........................16
4.2 Data Chunk – “data”組塊介紹 ..........................22
4.3 Fact Chunk – “fact”組塊介紹 ..........................23
4.4 Silent Chunk – “slnt”組塊介紹 ........................23
4.5 Cue Chunk – “cue”組塊介紹 ............................24
4.6 Playlist Chunk – "plst"組塊介紹 ........................26
4.7 Associated Data List Chunk – “list”組塊介紹 ...........27
4.8 Label Chunk – “labl”組塊介紹 .........................28
4.9 Note Chunk - "note"組塊介紹 .............................29
4.10 Labeled Text Chunk - "ltxt"組塊介紹 ....................30
第三章 STM32F411-Discovery 開發板功能介紹 .........................33
1 STM32F411 主晶片功能 .......................................33
2 DMA 功能介紹 ...............................................34
2.1 DMA 特性................................................34
2.2 DMA 傳輸種類 ............................................38
2.3 DMA FIFO ...............................................41
2.4 DMA Double buffer 模式 ..................................42
3 I2S 傳輸介面介紹 ............................................43
4 STM32F411 嵌入式軟件介紹 ...................................46
第四章 多聲道音源輸出周邊裝置功能控制與介紹 .......................50
1 LCD module 控制介紹 ........................................50
2 6 通道DAC CS4361 介紹 .......................................58
第五章 多聲道音源輸出實現 ........................................65
1 硬體系統方塊圖與功能介紹 ...................................65
2 軟體規劃流程 ...............................................69
3 多聲道WAVE 檔輸出量測驗證 ..................................72
4 開發板實驗結果 .............................................83
第六章 結論 .....................................................94
參考資料及文獻 ...................................................95
附錄 ............................................................97

                                

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