【正文】 目錄 摘要 ................................................................................................................................................. I ABSTRACT...................................................................................................................................II 緒論 ................................................................................................................................................ 1 1 語(yǔ)音錄放系統(tǒng)總體設(shè)計(jì)及主要芯片說(shuō)明 .......................................................................... 4 總體方案論證 ................................................................................................................... 4 器件選擇 ............................................................................................................................ 5 單片機(jī)的選擇 ............................................................................................................ 5 語(yǔ)音芯片選擇 ............................................................................................................ 6 AT89C51 芯片說(shuō)明 ........................................................................................................... 7 AT89C51 的 主要參數(shù) ................................................................................................ 7 AT89C51 的引腳功能說(shuō)明 ....................................................................................... 8 ISD2560 語(yǔ)音芯片 ............................................................................................................ 9 ISD2560 的引腳 功能 ................................................................................................. 9 ISD2560 的操作模式 ............................................................................................... 10 ISD2560 的分段錄放音 ........................................................................................... 11 ISD2560 的 應(yīng)用電路 ............................................................................................... 12 LM386 集成功率放大器芯片說(shuō)明 .............................................................................. 13 LM386 電子特性 ...................................................................................................... 13 LM386 的引 腳說(shuō)明 .................................................................................................. 14 2 語(yǔ)音錄放系統(tǒng)硬件電路設(shè)計(jì) .............................................................................................. 16 ................................................................................................. 16 AT89C51 的外圍電路設(shè)計(jì) ............................................................................................ 16 晶振電路設(shè)計(jì) .......................................................................................................... 16 復(fù)位電路設(shè)計(jì) .......................................................................................................... 17 語(yǔ)音電路設(shè)計(jì) ................................................................................................................. 18 功放電路設(shè)計(jì) ................................................................................................................. 19 鍵盤輸入電路和狀態(tài)顯示電路設(shè)計(jì) .......................................................................... 19 3 語(yǔ)音錄放系統(tǒng)軟件設(shè)計(jì) ....................................................................................................... 21 主要變量說(shuō)明 ................................................................................................................. 21 主程序工作原理及流程圖 ........................................................................................... 21 子程序流程圖及代碼 .................................................................................................... 23 錄音子程序 ............................................................................................................... 23 放音子程序 ............................................................................................................... 24 結(jié)束語(yǔ) .......................................................................................................................................... 26 致謝 .............................................................................................................. 錯(cuò)誤 !未定義書簽。 參考文獻(xiàn) ..................................................................................................................................... 27 附錄 1 ........................................................................................................................................... 28 附錄 2 ........................................................................................................................................... 30 I 摘要 在智能 儀器儀表或自動(dòng)控制設(shè)備中，增加語(yǔ)音功能能極大地提高人機(jī)界面的友好性，方便用戶操作。在許多場(chǎng)合需要將 語(yǔ)音合成、語(yǔ)音識(shí)別、語(yǔ)音存儲(chǔ)和回放技術(shù) 和單片機(jī)結(jié)合在一起 。 常規(guī)的模擬化語(yǔ)音處理系統(tǒng)能實(shí)現(xiàn)語(yǔ)音的存儲(chǔ)與回放功能，但效果不是很好。本文采用了 Flash 單片機(jī) AT89C51 及數(shù)碼語(yǔ)音芯片 ISD2560 組成的數(shù)字化的語(yǔ)音存儲(chǔ)與回放系統(tǒng)。單片機(jī)是系統(tǒng)的控制中心，它主要實(shí)現(xiàn)以下的功能：一方面控制按鍵識(shí)別和功能選擇；另一方面控制 ISD2560 語(yǔ)音芯片的錄音和放音過(guò)程，實(shí)現(xiàn)語(yǔ)音的存儲(chǔ)和回放。 本設(shè)計(jì)首先給出了系統(tǒng)的硬件電路， 接著結(jié)合硬件電路編寫了錄、放音控制程序，最后，對(duì)本設(shè)計(jì)進(jìn)行總結(jié)與展望。 關(guān)鍵詞 ： AT89C51 單片機(jī) ISD2560 語(yǔ)音芯片 語(yǔ)音存儲(chǔ) 語(yǔ)音回放 II ABSTRACT In the area of intelligent instruments and automatic control equipments, the system with the phoic function can greatly increase the friendliness of the manmachine interface, and is also convenient for users to operate. In many situations, designers need to integrate the phoic synthesis, the phoic recognition and the phoic storage and playback technology with the SCM. The mon analogsignal digitalize processing system can realize the function of phoic storage and playback. But the effects are not very good. This dissertation designs the digital phoic system posed of flash microcontroller AT89C51 and digital