【正文】 .........................................................................................12 市場(chǎng)需求分析 ....................................................................................................................................12 用戶需求分析 ....................................................................................................................................12 軟件性能要求 ....................................................................................................................................13 軟件功能需求 ....................................................................................................................................13 語(yǔ)音通訊系統(tǒng)流程分析 ...........................................................................................................................14 語(yǔ)音通訊系統(tǒng)數(shù)據(jù)流圖 ...........................................................................................................................15第四章 語(yǔ)音通訊系統(tǒng)的設(shè)計(jì) .............................................17 系統(tǒng)結(jié)構(gòu) .....................................................................................................................................................17 開(kāi)發(fā)工具 .....................................................................................................................................................17 流程設(shè)計(jì) .....................................................................................................................................................18 語(yǔ)音通訊系統(tǒng)總體設(shè)計(jì) .............................................................................................................................19 語(yǔ)音通訊系統(tǒng)詳細(xì)設(shè)計(jì) .............................................................................................................................19 登錄模塊 ............................................................................................................................................19 建立連接模塊 ....................................................................................................................................20 音頻捕獲模塊 ....................................................................................................................................21 音頻回放模塊 ....................................................................................................................................23第五章 語(yǔ)音通訊系統(tǒng)的實(shí)現(xiàn) .............................................26 構(gòu)建語(yǔ)音通訊系統(tǒng)的用戶登錄系統(tǒng) .........................................................................................................26 連接建立模塊的實(shí)現(xiàn) .................................................................................................................................26 麥克風(fēng)相關(guān)操作 ................................................................................................................................26 建立通信連接 ....................................................................................................................................28..............................................................................................................................................32 確定音頻格式 ....................................................................................................................................32 建立音頻捕獲對(duì)象并為其分配緩沖區(qū) ............................................................................................32 打開(kāi)錄音設(shè)備 ....................................................................................................................................33 開(kāi)始錄音 ............................................................................................................................................33 音頻壓縮并發(fā)送給遠(yuǎn)程主機(jī) ............................................................................................................33 結(jié)束錄音 ............................................................................................................................................34..................................................................................................................................35 確定音頻格式 ....................................................................................................................................35 建立音頻回放對(duì)象 ............................................................................................................................35 循環(huán)接收音頻數(shù)據(jù) ............................................................................................................................35 打開(kāi)回放設(shè)備 ....................................................................................................................................36 音頻解壓并回放 ................................................................................................................................37 結(jié)束回放 ............................................................................................................................................37..............................................................................................................................38 WAVEHDR..............................................................................................................................................38 WAVEFORMATEX....................................................................................................................................38 .....................................................................................................................38 waveOutOpen......................................................................................................................................39 waveInOpen........................................................................................................................................39 waveOutWrite....................................................................................................................................39 waveOutPrepareHeader........................