一、變聲器是什么
變聲器是(shi)通(tong)(tong)(tong)過(guo)改變(bian)(bian)輸(shu)入(ru)音(yin)頻的(de)音(yin)色、音(yin)調,并將變(bian)(bian)聲(sheng)(sheng)后的(de)音(yin)頻輸(shu)出(chu)的(de)工(gong)具。根據變(bian)(bian)聲(sheng)(sheng)器(qi)(qi)材質不(bu)同(tong),變(bian)(bian)聲(sheng)(sheng)器(qi)(qi)分為變(bian)(bian)聲(sheng)(sheng)器(qi)(qi)硬件(jian)和(he)變(bian)(bian)聲(sheng)(sheng)器(qi)(qi)軟件(jian)。變(bian)(bian)聲(sheng)(sheng)器(qi)(qi)硬件(jian),即通(tong)(tong)(tong)過(guo)硬件(jian)實現(xian)變(bian)(bian)聲(sheng)(sheng)的(de)工(gong)具,譬如(ru),知名(ming)動畫名(ming)偵(zhen)探柯(ke)南(nan)中,柯(ke)南(nan)偵(zhen)破案件(jian)時扮演毛(mao)利小五郎(lang)(lang)時,使用的(de)蝴(hu)蝶結(jie),就是(shi)一種變(bian)(bian)聲(sheng)(sheng)器(qi)(qi),柯(ke)南(nan)正是(shi)通(tong)(tong)(tong)過(guo)這一蝴(hu)蝶結(jie),模擬成毛(mao)利小五郎(lang)(lang)的(de)聲(sheng)(sheng)音(yin),進行(xing)案件(jian)偵(zhen)破的(de),這一變(bian)(bian)聲(sheng)(sheng)器(qi)(qi)可(ke)稱之為蝴(hu)蝶結(jie)變(bian)(bian)聲(sheng)(sheng)器(qi)(qi)。變(bian)(bian)聲(sheng)(sheng)器(qi)(qi)軟件(jian),即通(tong)(tong)(tong)過(guo)軟件(jian)實現(xian)變(bian)(bian)聲(sheng)(sheng)的(de)工(gong)具,軟件(jian)類變(bian)(bian)聲(sheng)(sheng)器(qi)(qi),運行(xing)平臺(tai)皆為電腦系統。
二、變聲器變聲的原理
通過(guo)自己發音,共振峰頻(pin)率的(de)改(gai)變(bian)(bian)(bian)是(shi)基(ji)(ji)本重(zhong)采(cai)(cai)樣(yang)實(shi)現的(de),從重(zhong)采(cai)(cai)樣(yang)原(yuan)理知道,這(zhe)也同(tong)時引發了基(ji)(ji)頻(pin)的(de)變(bian)(bian)(bian)化(hua)(hua),為保證(zheng)基(ji)(ji)頻(pin)變(bian)(bian)(bian)化(hua)(hua)和(he)共振頻(pin)率變(bian)(bian)(bian)化(hua)(hua)的(de)獨立、互不(bu)相關,在基(ji)(ji)頻(pin)移(yi)(yi)動是(shi)必須考慮抵(di)消重(zhong)采(cai)(cai)樣(yang)帶來的(de)偏移(yi)(yi),理論上只(zhi)要基(ji)(ji)頻(pin)檢測(ce)足夠精確,確保可(ke)以保證(zheng)基(ji)(ji)頻(pin)改(gai)變(bian)(bian)(bian)和(he)共振峰頻(pin)率改(gai)變(bian)(bian)(bian)間的(de)互不(bu)相關,通過(guo)搬移(yi)(yi)和(he)改(gai)變(bian)(bian)(bian)基(ji)(ji)頻(pin),實(shi)現變(bian)(bian)(bian)聲。
無論是硬件變聲器,還是軟件變聲器,其原理都是,通過改變輸入聲音頻率,進而改變聲音的音色、音調,使輸出聲音在感官上與原聲音不同。我們每個人的聲音不同,源于我們的每個人的音色和音調不同,我們所說的男中音、男高音,就是音調的不同,而即便音調一致,我們依然能區分出兩個不同人的聲音,或不同樂器的聲音,這就是音色的不同。變聲器,正是(shi)借助對聲音(yin)音(yin)色和音(yin)調的(de)雙重復合改變,實現輸出聲音(yin)的(de)改變。