【正文】 osition is passed to the player for playing。 storage is on acquisition and processing plete audio preservation。 關(guān)鍵詞 ： android、嵌入 式系統(tǒng)、音頻系統(tǒng)、飛凌 OK6410 Abstract The word Android meaning refers to the robot, Also Google announced on November 5, 2020 that the Linux platform based on open source mobile phone operating system name, the platform by the operating system, middleware, user interface and application software, which is the first for the mobile terminal to create a truly open and plete mobile software. The subject of a design based on the Android embedded audio system. The system is mainly to achieve the audio collection, storage, and broadcast transmission. Acquisition by the SD card with voice or Android builtin microphone sound collection。 系統(tǒng)硬件平臺采用飛凌 OK6410 開發(fā)板，軟件平臺采用 android 操作系統(tǒng)。該系統(tǒng)主要實(shí)現(xiàn)了音頻的采集、存儲、播放和傳輸。大學(xué)本科生畢業(yè)設(shè)計(jì) 1 基于 Android的嵌入式音頻系統(tǒng) 摘要 Android 一詞的本義指 “ 機(jī)器人 ” ，同時也是 Google 于 2020 年 11 月 5日宣布的基于 Linux 平臺的開源手機(jī)操作系統(tǒng)的名稱，該平臺由操作系統(tǒng)、中間件、用戶界面和應(yīng)用軟件組成，號稱是首個為移動終端打造的真正開放和完整的移動軟件。 本課題設(shè)計(jì)了一個基于 Android 的嵌入式音頻系統(tǒng)。采集是通過 SD 卡中所擁有的聲音或者 Android 自帶的麥克風(fēng)進(jìn)行聲音采集；處理是在音頻的采集過程中對音頻所采集到的聲音編碼的方式的規(guī)定；存 儲是對已采集處理完成的音頻的保存；播放是實(shí)現(xiàn)對音頻的開始播放、暫停、繼續(xù)，重播、停止功能；傳輸是將播放音頻的位置傳遞給播放器進(jìn)行播放；傳輸是指開發(fā)板與 PC 之間的音頻文件傳送。論文對嵌入式系統(tǒng)進(jìn)行了較詳細(xì)的介紹，闡述了 OK6410 開發(fā)板的結(jié)構(gòu)和特性，分析了android 操作系統(tǒng)的原理，研究了 音頻系統(tǒng) 的應(yīng)用開發(fā)過程，描述了 android 開發(fā)環(huán)境建立方法，并設(shè)計(jì)實(shí)現(xiàn)了音頻采集、存儲、處理、播放和傳輸?shù)墓δ堋?processing is in the audio during acquisition of audio collected voice coding rules。 play is to realize the audio play, pause, continue, the replay, stop function。 transmission refers to the development board audio file transfer between PC and. The system hardware platform by filling the OK6410 development board, software platform based on the Android operating system. Research on embedded system in detail, describes the OK6410development board structure and characteristics, analysis of the Android operating system principle, studies the audio system development process, described in the Android development environment to establish methods, design and realize the audio collection, storage, processing, and broadcast transmission function. Key Words:android、 Embedded system、 Audio system、 ForlinxOK6410 大學(xué)本科生畢業(yè)設(shè)計(jì) 2 目錄 ........................................................................................................................................... 3 當(dāng)前市場需求分析 ............................................................................................................ 3 android 操作系統(tǒng)簡介 ....................................................................................................... 3 嵌入式音頻系統(tǒng)概述 ........................................................................................................ 4 ........................................................................................................... 4 音頻嵌入式系統(tǒng)總體設(shè)計(jì) ................................................................................................. 4 嵌入式系統(tǒng)的概念 ............................................................................................................ 6 嵌入式系統(tǒng)的定義 .................................................................................................. 6 嵌入式系統(tǒng)的特點(diǎn) .................................................................................................. 6 嵌入式系統(tǒng)的歷史 .................................................................................................. 6 嵌入式系統(tǒng)的組成 .................................................................................................. 7 .................................................................................................................. 7 音頻系統(tǒng)硬件設(shè)計(jì)框架 ..................................................................................................... 7 OK6410開發(fā)板硬件結(jié)構(gòu) ................................................................................................... 8 簡介 ....................................................................................................................... 10 S3C6410處理器特性 ....................................................................................................... 10 ........................................................................................................ 12 .................................................................................................................... 13 音頻系統(tǒng)軟件開發(fā)流程 ................................................................................................... 13 android 操作系統(tǒng)原理 ..................................................................................................... 14 android 定義 .......................................................................................................... 14 android 的發(fā)展歷史 ............................................................................................... 14 android 的應(yīng)用開發(fā)前景 ........................................................................................ 14 android 應(yīng)用開發(fā)工具 ............................................................................................ 15 音頻系統(tǒng)軟件開發(fā)方法 ................................................................................................... 15 創(chuàng)建個人 audioplay...................................................................... 錯誤 !未定義書簽。 軟件布局設(shè)計(jì) ............................................................................. 錯誤 !未定義書簽。 …………………………………………………………………………………… 16 音頻系統(tǒng)相關(guān)流程與程序 ............................................................................................... 17 ................................................................................................................ 20 需要的 PC環(huán)境和軟硬件 ....................