中原大學電機工程學系
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101學年度
大聲點聽不見!
指導老師:王佳盈   組長:陳準   組員:陳柏旭、吳庭禎、羅仕洋
一般的廣播系統往往只能播放選定的特定音量,但是在需要廣播的場所,環境背景音量往往瞬息萬變。當背景音量增大的時候,廣播音量相顯不足,我們便無法聽清楚廣播內容;反之,當背景音量減弱時,廣播音量又顯得太過大聲。因此,我們設計了一個嶄新的廣播系統來解決這個問題。我們利用麥克風輸入電路偵測背景音量,將偵測到的電壓訊號傳入Arduino晶片,經過分析之後再送出適當的廣播音量給輸出模組,這樣不論背景音量大小,我們都可以得到最好的擴播結果。
Most of the broadcasting systems just play with a constant volume, but in a public place, the environmental background noise often change rapidly. When the background noise is large, the broadcast volume becomes hard to be heard. On the contrary, when the background noise is small, the broadcast volume may become too noisy. In this project, we design a new broadcasting system to solve this problem. We use a microphone input circuit to detect the background noise level. The detected volume is read by an Arduino chip. Based on the input signal, the Arduino chip sends an appropriate volume signal to the output module. By using this way, we always get the best broadcasting volume regardless of the changing background noise.
我們決定將壓電陶瓷晶片和鞋子做結合。
   
 
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