【正文】 參數(shù)中音頻率T參數(shù)高音頻率T參數(shù)Do2621908229Do523956115Do10465757Do﹟2771805217Do﹟554903108Do﹟11095454Re2941701204Re587852102Re11755151Re﹟3111608193Re﹟62280497Re﹟12454848Mi3301515182Mi65975991Mi13184545Fa3491433172Fa69871686Fa13974343Fa﹟3701351162Fa﹟74067681Fa﹟14804141So3921276153So78463877So15683838So﹟4151205145So﹟83160272So﹟16613636La4401136136La88056868La17603434La﹟4641078129La﹟93253664La﹟18653232Si4941012121Si98850661Si19763030十三、節(jié)拍的確定 若要構(gòu)成音樂，光有音調(diào)是不夠的，還需要節(jié)拍，讓音樂具有旋律（固定的律動(dòng)），而且可以調(diào)節(jié)各個(gè)音的快滿度。則1/4 。音持續(xù)時(shí)間的長(zhǎng)短即時(shí)值，一般用拍數(shù)表示。一首音樂是由許多不同的音符組成的，而每個(gè)音符對(duì)應(yīng)著不同頻率，這樣就可以利用不同的頻率的組合，加以與拍數(shù)對(duì)應(yīng)的延時(shí)，構(gòu)成音樂。對(duì)于單片機(jī)來說，產(chǎn)生不同頻率的脈沖是非常方便的，利用單片機(jī)的定時(shí)/計(jì)數(shù)器來產(chǎn)生這樣的方波頻率信號(hào)。節(jié)拍碼節(jié)拍數(shù)節(jié)拍碼節(jié)拍數(shù)11/4拍11/8拍22/4拍21/4拍33/4拍33/8拍41拍42/1拍51又1/4拍55/8拍61又1/2拍63/4拍82拍81拍A2又1/2拍A1又1/4拍C3拍C1又1/2拍F3又3/4拍每個(gè)音符使用1個(gè)字節(jié)，字節(jié)的高4位代表音符的高低，低4位代表音符的節(jié)拍。假設(shè)1/4拍為1DELAY，則1拍應(yīng)為4DELAY，以此類推。 1/4和1/8節(jié)拍的時(shí)間設(shè)定曲調(diào)值DELAY曲調(diào)值DELAY調(diào)4/4125毫秒調(diào)4/462毫秒調(diào)3/4187毫秒調(diào)3/494毫秒調(diào)2/4250毫秒調(diào)2/4125毫秒十四、 編碼do re mi fa so la si分別編碼為1~7，重音do編為8,重音re編為9，停頓編為0。音調(diào)作為編碼的高4位，而播放時(shí)間作為低4位，如此音調(diào)和節(jié)拍就構(gòu)成了一個(gè)編碼。舉例1：音調(diào)do,發(fā)音長(zhǎng)度為兩拍，即二分音符，將其編碼為0x18。先將歌曲的簡(jiǎn)譜進(jìn)行編碼，儲(chǔ)存在一個(gè)數(shù)據(jù)類型為unsigned char 的數(shù)組中。 簡(jiǎn)譜對(duì)應(yīng)的簡(jiǎn)譜碼、T值、節(jié)拍數(shù)簡(jiǎn)譜發(fā)音簡(jiǎn)譜碼T值節(jié)拍碼節(jié)拍數(shù)5低音SO16426011/4拍6低音LA26440022/4拍7低音TI36452433/4拍1中音DO46458041拍2中音RE56468451又1/4拍3中音MI66477761又1/2拍4中音FA76482082拍5中音SO864898A2又1/2拍6中音LA964968C3拍7中音TIA65030F3又3/4拍1高音DOB650582高音REC651103高音MID651574高音FAE651785高音SOF65217十五、歌曲的代碼 //揮著翅膀的女孩unsigned char code Music_Girl[]={ 0x17,0x02, 0x17,0x03, 0x18,0x03, 0x19,0x02, 0x15,0x03, 0x16,0x03, 0x17,0x03, 0x17,0x03, 0x17,0x03, 0x18,0x03, 0x19,0x02, 0x16,0x03, 0x17,0x03, 0x18,0x02, 0x18,0x03, 0x17,0x03, 0x15,0x02, 0x18,0x03, 0x17,0x03, 0x18,0x02, 0x10,0x03, 0x15,0x03, 0x16,0x02, 0x15,0x03, 0x16,0x03, 0x17,0x02, 0x17,0x03, 0x18,0x03, 0x19,0x02, 0x1A,0x03, 0x1B,0x03, 0x1F,0x03, 0x1F,0x03, 0x17,0x03, 0x18,0x03, 0x19,0x02, 0x16,0x03, 0x17,0x03, 0x18,0x03, 0x17,0x03, 0x18,0x03, 0x1F,0x03, 0x1F,0x02, 0x16,0x03, 0x17,0x03, 0x18,0x03, 0x17,0x03, 0x18,0x03, 0x20,0x03, 0x20,0x02, 0x1F,0x03, 0x1B,0x03, 0x1F,0x66, 0x20,0x03, 0x21,0x03, 0x20,0x03, 0x1F,0x03, 0x1B,0x03, 0x1F,0x66, 0x1F,0x03, 0x1B,0x03, 0x19,0x03, 0x19,0x03, 0x15,0x03, 0x1A,0x66, 0x1A,0x03, 0x19,0x03, 0x15,0x03, 0x15,0x03, 0x17,0x03, 0x16,0x66, 0x17,0x04, 0x18,0x04, 0x18,0x03, 0x19,0x03, 0x1F,0x03, 0x1B,0x03, 0x1F,0x66, 0x20,0x03, 0x21,0x03, 0x20,0x03, 0x1F,0x03, 0x1B,0x03, 0x1F,0x66, 0x1F,0x03, 0x1B,0x03, 0x19,0x03, 0x19,0x03, 0x15,0x03, 0x1A,0x66, 0x1A,0x03, 0x19,0x03, 0x19,0x03, 0x1F,0x03, 0x1B,0x03, 0x1F,0x00, 0x1A,0x03, 0x1A,0x03, 0x1A,0x03, 0x1B,0x03, 0x1B,0x03, 0x1A,0x03, 0x19,0x03, 0x19,0x02, 0x17,0x03, 0x15,0x17, 0x15,0x03, 0x16,0x03, 0x17,0x03, 0x18,0x03, 0x17,0x04, 0x18,0x0E, 0x18,0x03, 0x17,0x04, 0x18,0x0E, 0x18,0x66, 0x17,0x03, 0x18,0x03, 0x17,0x03, 0x18,0x03, 0x20,0x03, 0x20,0x02, 0x1F,0x03, 0x1B,0x03, 0x1F,0x66, 0x20,0x03, 0x21,0x03, 0x20,0x03, 0x1F,0x03, 0x1B,0x03, 0x1F,0x66, 0x1F,0x04, 0x1B,0x0E, 0x1B,0x03, 0x19,0x03, 0x19,0x03, 0x15,0x03, 0x1A,0x66, 0x1A,0x03, 0x19,0x03, 0x15,0x03, 0x15,0x03, 0x17,0x03, 0x16,0x66, 0x17,0x04, 0x18,0x04, 0x18,0x03, 0x19,0x03, 0x1F,0x03, 0x1B,0x03, 0x1F,0x66, 0x20,0x03, 0x21,0x03, 0x20,0x03, 0x1F,0x03, 0x1B,0x03, 0x1F,0x66, 0x1F,0x03, 0x1B,0x03, 0x19,0x03,