[理工] [人因工程]計算sound pressure level

看板Grad-ProbAsk作者 (茹)時間11年前 (2014/12/01 20:06), 編輯推噓0(000)
留言0則, 0人參與, 最新討論串1/1
各位大大好~想請教人因考題 There are seven sound sources,each is 44dBA,38dBA,74dBA,74dBA,77dBA,60dBA,80dBA if each is measured independently,what is SPL if all of them sound altogether? 有人知道如何算嗎? -- posted from android bbs reader on my HTC Butterfly https://market.android.com/details?id=com.bbs.reader -- ※ 發信站: 批踢踢實業坊(ptt.cc), 來自: 42.75.161.111 ※ 文章網址: http://www.ptt.cc/bbs/Grad-ProbAsk/M.1417435576.A.0D1.html
文章代碼(AID): #1KV5cu3H (Grad-ProbAsk)