對岸轉載小米MIX 隱藏上方聽筒的聲學技術 - 手機討論

By Tracy
at 2016-10-27T17:39
at 2016-10-27T17:39
Table of Contents
s
對岸轉載小米MIX 隱藏上方聽筒的聲學技術分析文
微信看到的,
對岸中國雷鋒網資訊網站今日推播的一篇文章:
https://tr.im/1o62i
小米MIX 概念機款為了追求極大化擴展螢幕,
將一般手機的螢幕上方要有的聽筒揚聲器、
紅外線距離感應器等,全部拿掉,
改成以壓電陶瓷震動聲導框架,
以及超音波傳感器等創新聲學技術來代替,
上方原有空間就不需要開空孔,
全部可以留作螢幕空間。
雷鋒網邀請聲學相關業界的專業人士,
從技術層面,
科普知識介紹一番小米MIX 的獨特的聽筒設計。
文中提到,
小米MIX嘗試這個收話聲學設計,
目前來說還是有些大膽,
相較於傳統的單體聽筒,
不好調校通話音質。
因為壓電陶瓷聲學系統的低頻很差,
而且帶動機身振動的非線性效應很明顯,
容易加大通話失真幅度,
所以其音質其實是低於傳統聽筒。
此外,還澄清一下部分媒體的錯誤訊息,
小米的壓電陶瓷聲學技術和骨傳導沒啥關係,
所以不需要貼近臉部的顱骨才可聽到聲音。
當然貼近臉部的時候,
也可以當作有一部分振動通過骨導傳送到內耳。
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Sent from JPTT on my Asus K01Q.
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