為什么有(you)些(xie)咪(mi)頭(tou)(tou)(tou)(tou)(tou)(tou)要(yao)(yao)(yao)點(dian)(dian)(dian)(dian)膠(jiao)，有(you)些(xie)不需要(yao)(yao)(yao)呢？什么情況下要(yao)(yao)(yao)對咪(mi)頭(tou)(tou)(tou)(tou)(tou)(tou)點(dian)(dian)(dian)(dian)膠(jiao)？一(yi)般來說，點(dian)(dian)(dian)(dian)膠(jiao)有(you)兩大(da)作用(yong)(yong)：一(yi)是(shi)(shi)防止(zhi)咪(mi)頭(tou)(tou)(tou)(tou)(tou)(tou)的(de)(de)焊點(dian)(dian)(dian)(dian)松動導致斷觸無法(fa)導電；二是(shi)(shi)防潮絕緣，避免咪(mi)頭(tou)(tou)(tou)(tou)(tou)(tou)受潮，延長咪(mi)頭(tou)(tou)(tou)(tou)(tou)(tou)的(de)(de)使(shi)用(yong)(yong)壽命。當(dang)然(ran)，并不是(shi)(shi)所有(you)咪(mi)頭(tou)(tou)(tou)(tou)(tou)(tou)都(dou)需要(yao)(yao)(yao)采(cai)用(yong)(yong)點(dian)(dian)(dian)(dian)膠(jiao)，因為它的(de)(de)存在也(ye)帶來了(le)一(yi)些(xie)弊端(duan)。比如生產工序的(de)(de)復雜(za)化，拆(chai)修(xiu)的(de)(de)難度加(jia)大(da)（黏住了(le)不好拆(chai)焊點(dian)(dian)(dian)(dian)，需要(yao)(yao)(yao)先除膠(jiao)），重要(yao)(yao)(yao)的(de)(de)還(huan)(huan)會(hui)帶來成本(ben)的(de)(de)增加(jia)。咪(mi)頭(tou)(tou)(tou)(tou)(tou)(tou)是(shi)(shi)否需要(yao)(yao)(yao)點(dian)(dian)(dian)(dian)膠(jiao)，要(yao)(yao)(yao)根據咪(mi)頭(tou)(tou)(tou)(tou)(tou)(tou)的(de)(de)使(shi)用(yong)(yong)要(yao)(yao)(yao)求(qiu)(qiu)來決定：如果咪(mi)頭(tou)(tou)(tou)(tou)(tou)(tou)是(shi)(shi)在戶(hu)外使(shi)用(yong)(yong)，容易受到雨淋，或者使(shi)用(yong)(yong)環境比較潮濕，比如在浴室使(shi)用(yong)(yong)，通常就需要(yao)(yao)(yao)對咪(mi)頭(tou)(tou)(tou)(tou)(tou)(tou)點(dian)(dian)(dian)(dian)膠(jiao)進(jin)行防水。另外還(huan)(huan)有(you)一(yi)些(xie)特(te)殊情況也(ye)可能會(hui)要(yao)(yao)(yao)求(qiu)(qiu)對咪(mi)頭(tou)(tou)(tou)(tou)(tou)(tou)點(dian)(dian)(dian)(dian)膠(jiao)。咪(mi)頭(tou)(tou)(tou)(tou)(tou)(tou)具有(you)體積小、結構簡單、電聲(sheng)性能好、價格(ge)低的(de)(de)特(te)點(dian)(dian)(dian)(dian)，大(da)量(liang)用(yong)(yong)于盒式錄音機(ji)、無線(xian)話筒及(ji)聲(sheng)控等電路中(zhong)。北京藍牙咪(mi)頭(tou)(tou)(tou)(tou)(tou)(tou)批發

常見種(zhong)(zhong)類(lei)有(you)三種(zhong)(zhong)：動圈麥克(ke)(ke)風(feng)，電(dian)(dian)容(rong)麥克(ke)(ke)風(feng)，履(lv)帶麥克(ke)(ke)風(feng)。看名字或(huo)許(xu)會(hui)摸不(bu)著頭腦，但簡單來(lai)說，就是(shi)(shi)內(nei)部(bu)拾(shi)音(yin)器將聲(sheng)(sheng)(sheng)波轉換為(wei)(wei)電(dian)(dian)信號的(de)(de)(de)方式不(bu)同(tong)罷了。雖然是(shi)(shi)三個不(bu)同(tong)的(de)(de)(de)種(zhong)(zhong)類(lei)，但其(qi)(qi)實他(ta)(ta)們內(nei)部(bu)的(de)(de)(de)基(ji)本構造卻(que)大(da)同(tong)小異。一(yi)、他(ta)(ta)們都擁(yong)有(you)拾(shi)音(yin)器（有(you)的(de)(de)(de)人稱為(wei)(wei)咪頭），將聲(sheng)(sheng)(sheng)波轉換為(wei)(wei)電(dian)(dian)信號的(de)(de)(de)功能正是(shi)(shi)由他(ta)(ta)來(lai)完成(cheng)的(de)(de)(de)。也(ye)正是(shi)(shi)不(bu)同(tong)的(de)(de)(de)拾(shi)音(yin)器決定(ding)了他(ta)(ta)們到(dao)底(di)是(shi)(shi)哪(na)一(yi)種(zhong)(zhong)類(lei)的(de)(de)(de)麥克(ke)(ke)風(feng)。將麥克(ke)(ke)風(feng)靠近并對準音(yin)源，我(wo)(wo)(wo)們可(ke)以錄制任何我(wo)(wo)(wo)們想(xiang)要錄制的(de)(de)(de)聲(sheng)(sheng)(sheng)音(yin)，并盡(jin)可(ke)能減(jian)少周圍的(de)(de)(de)聲(sheng)(sheng)(sheng)音(yin)。例如人聲(sheng)(sheng)(sheng)或(huo)樂器。例如：當歌手(shou)在舞(wu)臺上(shang)演出(chu)時，除了我(wo)(wo)(wo)們需(xu)(xu)要選擇正確(que)的(de)(de)(de)麥克(ke)(ke)風(feng)外，我(wo)(wo)(wo)們還需(xu)(xu)要注意麥克(ke)(ke)風(feng)會(hui)拾(shi)取到(dao)同(tong)臺的(de)(de)(de)其(qi)(qi)他(ta)(ta)樂隊成(cheng)員樂器發出(chu)來(lai)的(de)(de)(de)聲(sheng)(sheng)(sheng)音(yin)，我(wo)(wo)(wo)們需(xu)(xu)要讓(rang)歌手(shou)的(de)(de)(de)麥克(ke)(ke)風(feng)盡(jin)量遠離其(qi)(qi)他(ta)(ta)音(yin)源，以減(jian)少不(bu)需(xu)(xu)要的(de)(de)(de)聲(sheng)(sheng)(sheng)音(yin)。廣(guang)東感應器咪頭哪(na)家好車載多媒(mei)體咪頭如何選擇？

總(zong)(zong)(zong)(zong)(zong)諧波(bo)(bo)(bo)(bo)(bo)失(shi)真(zhen)(zhen)(zhen)，英文全稱(cheng)TotalHarmonicDistortion，簡稱(cheng)THD。總(zong)(zong)(zong)(zong)(zong)諧波(bo)(bo)(bo)(bo)(bo)失(shi)真(zhen)(zhen)(zhen)是(shi)指用信號(hao)(hao)源輸(shu)入時(shi)(shi)，輸(shu)出信號(hao)(hao)（諧波(bo)(bo)(bo)(bo)(bo)及其倍(bei)頻(pin)成分(fen)(fen)）比輸(shu)入信號(hao)(hao)多(duo)出的(de)(de)(de)(de)(de)(de)額(e)外諧波(bo)(bo)(bo)(bo)(bo)成分(fen)(fen)，通常(chang)用百分(fen)(fen)數來(lai)表示。一(yi)般說來(lai)，1000Hz頻(pin)率處的(de)(de)(de)(de)(de)(de)總(zong)(zong)(zong)(zong)(zong)諧波(bo)(bo)(bo)(bo)(bo)失(shi)真(zhen)(zhen)(zhen)小，因(yin)此不(bu)少產品均以該頻(pin)率的(de)(de)(de)(de)(de)(de)失(shi)真(zhen)(zhen)(zhen)作為(wei)它的(de)(de)(de)(de)(de)(de)指標(biao)。所以測(ce)試總(zong)(zong)(zong)(zong)(zong)諧波(bo)(bo)(bo)(bo)(bo)失(shi)真(zhen)(zhen)(zhen)時(shi)(shi)，是(shi)發出1000Hz的(de)(de)(de)(de)(de)(de)聲(sheng)音來(lai)檢測(ce)，這一(yi)個(ge)值越小越好。注：一(yi)些產品說明書的(de)(de)(de)(de)(de)(de)總(zong)(zong)(zong)(zong)(zong)諧波(bo)(bo)(bo)(bo)(bo)失(shi)真(zhen)(zhen)(zhen)表示為(wei)THD<0.5%，1W，這樣看來(lai)總(zong)(zong)(zong)(zong)(zong)諧波(bo)(bo)(bo)(bo)(bo)失(shi)真(zhen)(zhen)(zhen)較(jiao)(jiao)小，但只(zhi)是(shi)在輸(shu)出功率為(wei)1W的(de)(de)(de)(de)(de)(de)總(zong)(zong)(zong)(zong)(zong)諧波(bo)(bo)(bo)(bo)(bo)失(shi)真(zhen)(zhen)(zhen)，這與(yu)標(biao)準(zhun)要求的(de)(de)(de)(de)(de)(de)測(ce)量條件下(xia)得到的(de)(de)(de)(de)(de)(de)總(zong)(zong)(zong)(zong)(zong)諧波(bo)(bo)(bo)(bo)(bo)失(shi)真(zhen)(zhen)(zhen)是(shi)不(bu)同的(de)(de)(de)(de)(de)(de)。因(yin)此，評價MP3的(de)(de)(de)(de)(de)(de)總(zong)(zong)(zong)(zong)(zong)諧波(bo)(bo)(bo)(bo)(bo)失(shi)真(zhen)(zhen)(zhen)指標(biao)時(shi)(shi)應注明是(shi)在什么條件下(xia)測(ce)得的(de)(de)(de)(de)(de)(de)。THD(totalharmonicdistortion，總(zong)(zong)(zong)(zong)(zong)諧波(bo)(bo)(bo)(bo)(bo)失(shi)真(zhen)(zhen)(zhen))：是(shi)聲(sheng)音設備(bei)產生的(de)(de)(de)(de)(de)(de)(通常(chang)是(shi)不(bu)受歡(huan)迎的(de)(de)(de)(de)(de)(de))諧波(bo)(bo)(bo)(bo)(bo)的(de)(de)(de)(de)(de)(de)水平。一(yi)般來(lai)說，高質量設備(bei)的(de)(de)(de)(de)(de)(de)THD值很(hen)低(di)(低(di)于0.002%)，但也有(you)例外。很(hen)多(duo)電子管設備(bei)的(de)(de)(de)(de)(de)(de)THD非常(chang)高，但晶體管設備(bei)必須具有(you)較(jiao)(jiao)低(di)的(de)(de)(de)(de)(de)(de)THD，因(yin)為(wei)它們多(duo)余的(de)(de)(de)(de)(de)(de)諧波(bo)(bo)(bo)(bo)(bo)會使(shi)聲(sheng)音聽起來(lai)很(hen)不(bu)舒(shu)服。

麥(mai)克(ke)風(feng)咪(mi)頭還(huan)具有耐(nai)用(yong)(yong)(yong)性(xing)。麥(mai)克(ke)風(feng)咪(mi)頭一般采用(yong)(yong)(yong)高質量(liang)的(de)材料(liao)制作，具有較高的(de)耐(nai)用(yong)(yong)(yong)性(xing)，可以經受長時間的(de)使用(yong)(yong)(yong)而(er)不損壞(huai)。這(zhe)使得麥(mai)克(ke)風(feng)咪(mi)頭成(cheng)為專業錄(lu)(lu)音(yin)(yin)工(gong)作者的(de)，因(yin)為他們(men)需要一個能(neng)(neng)夠長時間使用(yong)(yong)(yong)的(de)耐(nai)用(yong)(yong)(yong)設備。總(zong)結起(qi)來，麥(mai)克(ke)風(feng)咪(mi)頭具有增(zeng)強(qiang)聲(sheng)音(yin)(yin)清晰(xi)度、提高聲(sheng)音(yin)(yin)靈敏(min)度、具有方向性(xing)、可替換(huan)性(xing)和(he)耐(nai)用(yong)(yong)(yong)性(xing)等優點(dian)。這(zhe)些優點(dian)使得麥(mai)克(ke)風(feng)咪(mi)頭成(cheng)為專業錄(lu)(lu)音(yin)(yin)工(gong)作者和(he)音(yin)(yin)樂愛好(hao)(hao)者的(de)必備配(pei)件，能(neng)(neng)夠幫助他們(men)獲得更(geng)好(hao)(hao)的(de)錄(lu)(lu)音(yin)(yin)效果。無(wu)論是(shi)在錄(lu)(lu)音(yin)(yin)棚、演唱會現場還(huan)是(shi)家庭錄(lu)(lu)音(yin)(yin)，麥(mai)克(ke)風(feng)咪(mi)頭都能(neng)(neng)發(fa)揮重(zhong)要的(de)作用(yong)(yong)(yong)，提高錄(lu)(lu)音(yin)(yin)質量(liang)，讓聲(sheng)音(yin)(yin)更(geng)加動(dong)聽。咪(mi)頭的(de)種類(lei)繁多，市場價格(ge)相差很大。

咪(mi)(mi)頭(tou)按其指(zhi)(zhi)(zhi)(zhi)向(xiang)(xiang)(xiang)性(xing)一(yi)般可以(yi)分為(wei)：全(quan)指(zhi)(zhi)(zhi)(zhi)向(xiang)(xiang)(xiang)性(xing)咪(mi)(mi)頭(tou)、單(dan)指(zhi)(zhi)(zhi)(zhi)向(xiang)(xiang)(xiang)性(xing)咪(mi)(mi)頭(tou)和雙指(zhi)(zhi)(zhi)(zhi)向(xiang)(xiang)(xiang)性(xing)咪(mi)(mi)頭(tou)。其中全(quan)指(zhi)(zhi)(zhi)(zhi)向(xiang)(xiang)(xiang)性(xing)咪(mi)(mi)頭(tou)對(dui)聲(sheng)(sheng)(sheng)音信號(hao)源(yuan)(yuan)(yuan)沒(mei)有方向(xiang)(xiang)(xiang)性(xing)要(yao)求(qiu)，在(zai)聲(sheng)(sheng)(sheng)源(yuan)(yuan)(yuan)大小(xiao)和距離相(xiang)同的(de)(de)條件下，從360度方向(xiang)(xiang)(xiang)從不(bu)同入(ru)射方向(xiang)(xiang)(xiang)的(de)(de)聲(sheng)(sheng)(sheng)信號(hao)檢測(ce)的(de)(de)靈敏度都是(shi)一(yi)致的(de)(de)，測(ce)試(shi)結果(guo)所(suo)形(xing)(xing)成(cheng)的(de)(de)圖(tu)形(xing)(xing)是(shi)一(yi)個圓形(xing)(xing)。因此(ci)，全(quan)指(zhi)(zhi)(zhi)(zhi)向(xiang)(xiang)(xiang)性(xing)咪(mi)(mi)頭(tou)是(shi)應用這3種指(zhi)(zhi)(zhi)(zhi)向(xiang)(xiang)(xiang)性(xing)應用較(jiao)為(wei)廣的(de)(de)一(yi)種咪(mi)(mi)頭(tou)。單(dan)指(zhi)(zhi)(zhi)(zhi)向(xiang)(xiang)(xiang)性(xing)咪(mi)(mi)頭(tou)和雙指(zhi)(zhi)(zhi)(zhi)向(xiang)(xiang)(xiang)性(xing)咪(mi)(mi)頭(tou)適用于對(dui)聲(sheng)(sheng)(sheng)音方向(xiang)(xiang)(xiang)有要(yao)求(qiu)的(de)(de)情況，在(zai)聲(sheng)(sheng)(sheng)源(yuan)(yuan)(yuan)大小(xiao)和距離相(xiang)同的(de)(de)條件下，從360度方向(xiang)(xiang)(xiang)從不(bu)同入(ru)射方向(xiang)(xiang)(xiang)的(de)(de)聲(sheng)(sheng)(sheng)信號(hao)檢測(ce)的(de)(de)靈敏度是(shi)變(bian)化的(de)(de)，單(dan)指(zhi)(zhi)(zhi)(zhi)向(xiang)(xiang)(xiang)性(xing)咪(mi)(mi)頭(tou)的(de)(de)測(ce)試(shi)結果(guo)所(suo)形(xing)(xing)成(cheng)的(de)(de)圖(tu)形(xing)(xing)是(shi)心形(xing)(xing)、超心形(xing)(xing)、或扁心形(xing)(xing)，雙指(zhi)(zhi)(zhi)(zhi)向(xiang)(xiang)(xiang)性(xing)咪(mi)(mi)頭(tou)的(de)(de)測(ce)試(shi)結果(guo)所(suo)形(xing)(xing)成(cheng)的(de)(de)圖(tu)形(xing)(xing)是(shi)8字形(xing)(xing)。單(dan)指(zhi)(zhi)(zhi)(zhi)向(xiang)(xiang)(xiang)拾音咪(mi)(mi)頭(tou)，可以(yi)定向(xiang)(xiang)(xiang)精(jing)確收音。單(dan)向(xiang)(xiang)(xiang)咪(mi)(mi)頭(tou)定制

國產咪(mi)(mi)頭廠家深圳市嶼聲科(ke)技集團有(you)限公(gong)司。北京藍(lan)牙咪(mi)(mi)頭批發

麥克(ke)風(feng)是一種將聲(sheng)音(yin)轉(zhuan)換成(cheng)電(dian)子(zi)信(xin)號(hao)(hao)的(de)(de)換能器(qi)。正式中(zhong)文名為傳聲(sheng)器(qi)，又稱為話(hua)筒、微音(yin)器(qi)、擴音(yin)器(qi)，或由(you)英文microphone音(yin)譯為麥克(ke)風(feng)、嘜克(ke)風(feng)，簡稱麥。我們知道，磁(ci)通量的(de)(de)變(bian)化(hua)可以產(chan)生(sheng)(sheng)(sheng)電(dian)流。麥克(ke)風(feng)原理其(qi)實就(jiu)是把聲(sheng)波轉(zhuan)為電(dian)子(zi)信(xin)號(hao)(hao)。當你對著麥克(ke)風(feng)進行說話(hua)、唱歌時，由(you)于(yu)聲(sheng)波具(ju)有(you)(you)震(zhen)(zhen)動(dong)(dong)(dong)性，會引起薄膜震(zhen)(zhen)動(dong)(dong)(dong)。薄膜隨著聲(sheng)音(yin)的(de)(de)高低做有(you)(you)規(gui)律的(de)(de)震(zhen)(zhen)動(dong)(dong)(dong)，而薄膜和線(xian)圈固定在一起，故線(xian)圈隨著薄膜做有(you)(you)規(gui)律的(de)(de)運(yun)動(dong)(dong)(dong)。線(xian)圈處在磁(ci)體4中(zhong)，運(yun)動(dong)(dong)(dong)會導(dao)致通過線(xian)圈的(de)(de)磁(ci)通量發生(sheng)(sheng)(sheng)改(gai)變(bian)從而產(chan)生(sheng)(sheng)(sheng)電(dian)流，把這(zhe)種有(you)(you)規(gui)律的(de)(de)電(dian)流保存(cun)即產(chan)生(sheng)(sheng)(sheng)了(le)(le)(le)電(dian)子(zi)信(xin)號(hao)(hao)。完成(cheng)這(zhe)三(san)步(bu)一個麥克(ke)風(feng)就(jiu)產(chan)生(sheng)(sheng)(sheng)了(le)(le)(le)，至于(yu)如(ru)何發聲(sheng)，那就(jiu)是揚聲(sheng)器(qi)的(de)(de)作用了(le)(le)(le)。其(qi)實揚聲(sheng)器(qi)就(jiu)是麥克(ke)風(feng)的(de)(de)逆過程，把電(dian)信(xin)號(hao)(hao)轉(zhuan)化(hua)為了(le)(le)(le)聲(sheng)波，在通過薄膜震(zhen)(zhen)動(dong)(dong)(dong)發出了(le)(le)(le)聲(sheng)音(yin)。北京藍牙咪(mi)頭(tou)批(pi)發

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