一、變聲器是什么

變聲器是通過改變(bian)(bian)(bian)(bian)(bian)(bian)輸入音(yin)頻的(de)(de)(de)音(yin)色、音(yin)調，并將變(bian)(bian)(bian)(bian)(bian)(bian)聲(sheng)(sheng)(sheng)后的(de)(de)(de)音(yin)頻輸出的(de)(de)(de)工具。根據變(bian)(bian)(bian)(bian)(bian)(bian)聲(sheng)(sheng)(sheng)器材質不(bu)同，變(bian)(bian)(bian)(bian)(bian)(bian)聲(sheng)(sheng)(sheng)器分為(wei)(wei)變(bian)(bian)(bian)(bian)(bian)(bian)聲(sheng)(sheng)(sheng)器硬(ying)件(jian)(jian)和變(bian)(bian)(bian)(bian)(bian)(bian)聲(sheng)(sheng)(sheng)器軟(ruan)件(jian)(jian)。變(bian)(bian)(bian)(bian)(bian)(bian)聲(sheng)(sheng)(sheng)器硬(ying)件(jian)(jian)，即(ji)通過硬(ying)件(jian)(jian)實現(xian)變(bian)(bian)(bian)(bian)(bian)(bian)聲(sheng)(sheng)(sheng)的(de)(de)(de)工具，譬如，知名動畫(hua)名偵探柯(ke)南中，柯(ke)南偵破案件(jian)(jian)時扮演毛利小五郎時，使(shi)用的(de)(de)(de)蝴蝶(die)結，就(jiu)是一種變(bian)(bian)(bian)(bian)(bian)(bian)聲(sheng)(sheng)(sheng)器，柯(ke)南正是通過這一蝴蝶(die)結，模(mo)擬(ni)成毛利小五郎的(de)(de)(de)聲(sheng)(sheng)(sheng)音(yin)，進行案件(jian)(jian)偵破的(de)(de)(de)，這一變(bian)(bian)(bian)(bian)(bian)(bian)聲(sheng)(sheng)(sheng)器可稱(cheng)之(zhi)為(wei)(wei)蝴蝶(die)結變(bian)(bian)(bian)(bian)(bian)(bian)聲(sheng)(sheng)(sheng)器。變(bian)(bian)(bian)(bian)(bian)(bian)聲(sheng)(sheng)(sheng)器軟(ruan)件(jian)(jian)，即(ji)通過軟(ruan)件(jian)(jian)實現(xian)變(bian)(bian)(bian)(bian)(bian)(bian)聲(sheng)(sheng)(sheng)的(de)(de)(de)工具，軟(ruan)件(jian)(jian)類(lei)變(bian)(bian)(bian)(bian)(bian)(bian)聲(sheng)(sheng)(sheng)器，運行平臺皆為(wei)(wei)電腦系統。

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二、變聲器變聲的原理

通(tong)(tong)過自己(ji)發音(yin)，共振(zhen)峰(feng)頻(pin)率的(de)改變(bian)(bian)(bian)(bian)是(shi)基(ji)本重(zhong)采樣(yang)(yang)(yang)實(shi)現的(de)，從(cong)重(zhong)采樣(yang)(yang)(yang)原理知道(dao)，這(zhe)也同(tong)時(shi)引發了基(ji)頻(pin)的(de)變(bian)(bian)(bian)(bian)化，為保(bao)證基(ji)頻(pin)變(bian)(bian)(bian)(bian)化和(he)共振(zhen)頻(pin)率變(bian)(bian)(bian)(bian)化的(de)獨立、互(hu)不相(xiang)(xiang)關，在基(ji)頻(pin)移動(dong)是(shi)必(bi)須考慮抵(di)消重(zhong)采樣(yang)(yang)(yang)帶來的(de)偏移，理論上只要基(ji)頻(pin)檢測足(zu)夠精確，確保(bao)可以(yi)保(bao)證基(ji)頻(pin)改變(bian)(bian)(bian)(bian)和(he)共振(zhen)峰(feng)頻(pin)率改變(bian)(bian)(bian)(bian)間的(de)互(hu)不相(xiang)(xiang)關，通(tong)(tong)過搬移和(he)改變(bian)(bian)(bian)(bian)基(ji)頻(pin)，實(shi)現變(bian)(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，正是借助(zhu)對聲(sheng)(sheng)音(yin)(yin)音(yin)(yin)色和音(yin)(yin)調的雙重復合改(gai)(gai)變，實(shi)現輸(shu)出聲(sheng)(sheng)音(yin)(yin)的改(gai)(gai)變。