手拉手式數字會議話筒

主(zhu)要(yao)應用在(zai)話(hua)(hua)筒(tong)數(shu)(shu)量(liang)多，從(cong)數(shu)(shu)只(zhi)會(hui)(hui)(hui)(hui)議(yi)(yi)(yi)話(hua)(hua)筒(tong)的(de)小型會(hui)(hui)(hui)(hui)議(yi)(yi)(yi)到(dao)(dao)幾千只(zhi)會(hui)(hui)(hui)(hui)議(yi)(yi)(yi)話(hua)(hua)筒(tong)的(de)大型會(hui)(hui)(hui)(hui)議(yi)(yi)(yi);可(ke)以(yi)(yi)實現從(cong)單一(yi)的(de)語音發(fa)言(yan)到(dao)(dao)多語種(zhong)的(de)語音發(fa)言(yan);可(ke)以(yi)(yi)對會(hui)(hui)(hui)(hui)議(yi)(yi)(yi)現場通過(guo)硬件(jian)本身設置(zhi)(zhi)或管理軟件(jian)設置(zhi)(zhi)，對會(hui)(hui)(hui)(hui)議(yi)(yi)(yi)進行有(you)效的(de)管理，還可(ke)以(yi)(yi)拓(tuo)展(zhan)簽到(dao)(dao)、嵌(qian)入式(shi)安裝(zhuang)等功能需(xu)要(yao)。其(qi)優點(dian)在(zai)于會(hui)(hui)(hui)(hui)議(yi)(yi)(yi)綜合功能需(xu)要(yao)可(ke)以(yi)(yi)滿足，能保證(zheng)對會(hui)(hui)(hui)(hui)議(yi)(yi)(yi)的(de)效果做到(dao)(dao)有(you)效控制(zhi);布線方(fang)便，一(yi)條數(shu)(shu)字會(hui)(hui)(hui)(hui)議(yi)(yi)(yi)話(hua)(hua)筒(tong)線可(ke)以(yi)(yi)連接(jie)幾十(shi)只(zhi)話(hua)(hua)筒(tong);控制(zhi)方(fang)式(shi)靈活(huo);可(ke)拓(tuo)展(zhan)性(xing)強，很(hen)高。盡管單只(zhi)話(hua)(hua)筒(tong)的(de)音質(zhi)沒有(you)*種(zhong)方(fang)式(shi)好(hao)，但在(zai)使(shi)用相同的(de)話(hua)(hua)筒(tong)數(shu)(shu)量(liang)前提下，總體效果則(ze)比*種(zhong)方(fang)式(shi)要(yao)好(hao)。這種(zhong)方(fang)式(shi)已經廣泛(fan)應用于各種(zhong)類型的(de)會(hui)(hui)(hui)(hui)議(yi)(yi)(yi)場所(suo)，成為會(hui)(hui)(hui)(hui)議(yi)(yi)(yi)發(fa)言(yan)的(de)主(zhu)流配置(zhi)(zhi)。

以上就是為大(da)家(jia)介紹的全部內容，希望對大(da)家(jia)有所幫助。如(ru)果您想要了解更多話筒的知識，歡迎撥打圖(tu)片上的熱(re)線聯(lian)系我們(men)。

話筒(tong)分為哪幾種？駐(zhu)極(ji)體話筒(tong)是一種什么話筒(tong)？

話(hua)筒(tong)(tong)的種(zhong)類主要有電(dian)(dian)容式(shi)和(he)電(dian)(dian)動式(shi)兩種(zhong)。電(dian)(dian)容式(shi)話(hua)筒(tong)(tong)又(you)有普(pu)通(tong)電(dian)(dian)容話(hua)筒(tong)(tong)和(he)駐極體電(dian)(dian)容話(hua)筒(tong)(tong)，電(dian)(dian)動式(shi)話(hua)筒(tong)(tong)又(you)有動圈式(shi)、帶式(shi)等結構，立桿(gan)顯(xian)(xian)示屏支架(jia)(jia)品牌(pai)，電(dian)(dian)容話(hua)筒(tong)(tong)的特(te)點是靈敏度高，具有非常寬的頻帶，非線性(xing)諧波失(shi)真小，聲(sheng)壓(ya)級(ji)高等特(te)點。缺(que)點是機(ji)械強度性(xing)能(neng)差(cha)，防潮性(xing)能(neng)差(cha)，需(xu)要極化電(dian)(dian)壓(ya)，在(zai)(zai)使用(yong)上較麻(ma)煩(fan)。電(dian)(dian)動話(hua)筒(tong)(tong)的特(te)點是：使用(yong)可(ke)靠(kao)方便(bian)，不需(xu)要外加(jia)電(dian)(dian)源，機(ji)械性(xing)能(neng)好，壽命長，價格(ge)便(bian)宜，缺(que)點是靈敏度稍低，頻率響應(ying)較差(cha)。如果給(gei)話(hua)筒(tong)(tong)頭加(jia)裝(zhuang)無線電(dian)(dian)收、發裝(zhuang)置，立桿(gan)顯(xian)(xian)示屏支架(jia)(jia)多少錢，就成了無線話(hua)筒(tong)(tong)。在(zai)(zai)移動使用(yong)時靈活方便(bian)，但容易受(shou)到干(gan)擾，在(zai)(zai)室內使用(yong)會碰到“死區”造成失(shi)靈。?

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話筒的通用指標

話筒的通(tong)用指標靈(ling)敏度。

一(yi)般定(ding)義為(wei)(wei)：話筒(tong)電(dian)轉換(huan)的(de)效率。用(yong)dB表示(shi)。在(zai)相關傳(chuan)聲(sheng)(sheng)(sheng)器的(de)測(ce)試標準中設定(ding)為(wei)(wei) ?0dB=1V，立(li)桿顯示(shi)屏支架，所以(yi)傳(chuan)聲(sheng)(sheng)(sheng)器的(de)靈(ling)敏(min)(min)(min)(min)(min)度(du)值(zhi)(zhi)(zhi)均為(wei)(wei)負(fu)值(zhi)(zhi)(zhi)。例(li)如(ru)(ru)：-58dB 傳(chuan)聲(sheng)(sheng)(sheng)器的(de)靈(ling)敏(min)(min)(min)(min)(min)度(du)一(yi)般在(zai) —28----—66 dB之間選擇，不同的(de)用(yong)途就有(you)著不同的(de)靈(ling)敏(min)(min)(min)(min)(min)度(du)要(yao)(yao)(yao)求。例(li)如(ru)(ru)：筆(bi)記本電(dian)腦的(de)靈(ling)敏(min)(min)(min)(min)(min)度(du)值(zhi)(zhi)(zhi)要(yao)(yao)(yao)求就比(bi)較高，要(yao)(yao)(yao)在(zai)—27db左右，而藍牙耳機則(ze)比(bi)較低(di)，只要(yao)(yao)(yao)-62db左右就可(ke)以(yi)。必(bi)須提及的(de)是：話筒(tong)靈(ling)敏(min)(min)(min)(min)(min)度(du)的(de)高低(di)不僅是傳(chuan)聲(sheng)(sheng)(sheng)器自(zi)身的(de)靈(ling)敏(min)(min)(min)(min)(min)度(du)決定(ding)的(de)，還(huan)與電(dian)路中的(de)電(dian)阻(zu)R有(you)關。這個電(dian)阻(zu)的(de)大小直接影響到傳(chuan)聲(sheng)(sheng)(sheng)器的(de)靈(ling)敏(min)(min)(min)(min)(min)度(du)。同樣一(yi)個傳(chuan)聲(sheng)(sheng)(sheng)器，如(ru)(ru)采(cai)用(yong)不同的(de)R值(zhi)(zhi)(zhi)，靈(ling)敏(min)(min)(min)(min)(min)度(du)就完全不同。例(li)如(ru)(ru)：R值(zhi)(zhi)(zhi)為(wei)(wei)1k和2k時，靈(ling)敏(min)(min)(min)(min)(min)度(du)可(ke)相差近7db！所以(yi)靈(ling)敏(min)(min)(min)(min)(min)度(du)是有(you)條件的(de)，傳(chuan)聲(sheng)(sheng)(sheng)器生(sheng)產廠家一(yi)般要(yao)(yao)(yao)給定(ding)測(ce)試條件，通常(chang)為(wei)(wei)：2.2k 、3v 。