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什么是(shi)數(shu)字音(yin)頻(pin)會(hui)議系(xi)(xi)統(tong)(tong)？數(shu)字音(yin)頻(pin)會(hui)議系(xi)(xi)統(tong)(tong)是(shi)為模(mo)擬音(yin)頻(pin)會(hui)議系(xi)(xi)統(tong)(tong)而制(zhi)作(zuo)的(de)。數(shu)字音(yin)頻(pin)會(hui)議系(xi)(xi)統(tong)(tong)將模(mo)擬量(liang)所代表的(de)音(yin)頻(pin)信號(hao)(hao)通過采樣和量(liang)化，轉(zhuan)換成由(you)多個二進(jin)制(zhi)數(shu)1和0組成的(de)數(shu)字音(yin)頻(pin)信號(hao)(hao)。數(shu)字信號(hao)(hao)在(zai)(zai)數(shu)字系(xi)(xi)統(tong)(tong)中(zhong)傳輸。數(shu)字信號(hao)(hao)的(de)優點是(shi)信號(hao)(hao)在(zai)(zai)有效(xiao)距(ju)離(li)內不失(shi)真(zhen)。抗...

會議室中麥克(ke)風(feng)(feng)(feng)的(de)放(fang)置(zhi)通常分為兩種(zhong)：桌面放(fang)置(zhi)和麥克(ke)風(feng)(feng)(feng)支架放(fang)置(zhi)。將(jiang)話(hua)筒(tong)放(fang)在桌面上時，要注意講(jiang)話(hua)者嘴(zui)唇與話(hua)筒(tong)芯部的(de)交叉角度和距離，使話(hua)筒(tong)芯軸(zhou)指向(xiang)講(jiang)話(hua)者嘴(zui)唇。此時，麥克(ke)風(feng)(feng)(feng)輸出的(de)頻率(lv)響(xiang)應特性較好。唇緣(yuan)偏離核心的(de)中心軸(zhou)越(yue)遠，頻率(lv)響(xiang)應特性越(yue)差，高音(yin)損壞(huai)越(yue)...