{"id":758,"date":"2020-12-20T04:51:31","date_gmt":"2020-12-19T19:51:31","guid":{"rendered":"http:\/\/sumulie.com\/blog\/?p=758"},"modified":"2020-12-20T04:51:31","modified_gmt":"2020-12-19T19:51:31","slug":"%e7%94%9f%e6%b4%bb%e9%9f%b3%e3%81%a7%e9%a8%92%e9%9f%b3%e3%81%ab%e3%81%aa%e3%82%8b%e5%9f%ba%e6%ba%96%e3%81%a8%e7%9b%ae%e5%ae%89%e3%81%a8%e3%81%af%e3%80%80db%e3%83%87%e3%82%b7%e3%83%99%e3%83%ab","status":"publish","type":"post","link":"https:\/\/sumulie.com\/blog\/?p=758","title":{"rendered":"\u751f\u6d3b\u97f3\u3067\u9a12\u97f3\u306b\u306a\u308b\u57fa\u6e96\u3068\u76ee\u5b89\u3068\u306f\u3000db(\u30c7\u30b7\u30d9\u30eb)\u3067\u5fb9\u5e95\u6bd4\u8f03"},"content":{"rendered":"

dB(\u30c7\u30b7\u30d9\u30eb)\u3068\u306f<\/h2>\n

dB\uff08\u30c7\u30b7\u30d9\u30eb)\u97f3\u306e\u5927\u304d\u3055\u3092\u8868\u3059\u5358\u4f4d\u3068\u3057\u3066\u4f7f\u308f\u308c\u3066\u3044\u307e\u3059\u3002
\ndB\u306f\u4eba\u9593\u306e\u8033\u306b\u805e\u3053\u3048\u308b\u6700\u5c0f\u97f3\u3092\u57fa\u6e96\u3068\u3057\u3066\u3001\u3053\u306e\u57fa\u6e96\u306b\u5bfe\u3057\u3066\u4f55\u500d\u306e\u97f3\u306e\u5927\u304d\u3055\u306a\u306e\u304b\u3092\u6570\u5024\u3067\u8868\u3059\u4e8b\u304c\u53ef\u80fd<\/strong><\/span>\u306b\u306a\u308b\u306e\u3067\u3059\u3002
\n\u3064\u307e\u308a\u4e16\u306e\u4e2d\u306e\u97f3\u3092\u767a\u3059\u308b\u7269\u3059\u3079\u3066\u306b\u5bfe\u3057\u3066\u3001dB\u3067\u97f3\u306e\u97f3\u91cf\u3092\u8868\u3059\u4e8b\u304c\u51fa\u6765\u3066dB\u304c\u5927\u304d\u3044\u97f3\u306b\u5bfe\u3057\u3066\u3001\u79c1\u305f\u3061\u4eba\u9593\u306f\u300c\u3046\u308b\u3055\u3044\u300d\u300c\u3084\u304b\u307e\u3057\u3044\u300d\u306a\u3069\u306e\u9a12\u97f3\u3068\u611f\u3058\u308b<\/strong><\/span>\u306e\u3067\u3059\u3002<\/p>\n

\u8eab\u8fd1\u306a\u97f3\u306f\u4f55db\uff1f<\/h2>\n

\u5b9f\u969b\u306b\u8eab\u8fd1\u3067\u97f3\u3092\u767a\u3057\u3066\u3044\u308b\u4ee3\u8868\u7684\u306a\u7269\u306edB\u306f\u6b21\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
<\/td>\n\u9a12\u97f3\u30ec\u30d9\u30eb[dB]<\/td>\n\u97f3\u306e\u7a2e\u985e<\/td>\n<\/td>\n<\/tr>\n
\u6975\u3081\u3066\u3046\u308b\u3055\u3044<\/td>\n120<\/td>\n\u30fb\u98db\u884c\u6a5f\u306e\u30a8\u30f3\u30b8\u30f3\u306e\u8fd1\u304f
\n\u30fb\u8fd1\u304f\u306e\u96f7\u9cf4<\/td>\n		\u8074\u899a\u6a5f\u80fd\u306b\u7570\u5e38\u3092\u304d\u305f\u3059<\/td>\n<\/tr>\n
110<\/td>\n\u30fb\u30d8\u30ea\u30b3\u30d7\u30bf\u30fc\u306e\u8fd1\u304f
\n\u30fb\u81ea\u52d5\u8eca\u306e\u30af\u30e9\u30af\u30b7\u30e7\u30f3\uff08\u76ee\u306e\u524d\uff09<\/td>\n<\/tr>\n
100<\/td>\n\u30fb\u96fb\u8eca\u304c\u901a\u308b\u6642\u306e\u30ac\u30fc\u30c9\u4e0b
\n\u30fb\u5730\u4e0b\u9244\u69cb\u5185<\/td>\n<\/tr>\n
90<\/td>\n\u30fb\u30ab\u30e9\u30aa\u30b1\u306e\u97f3\uff08\u5e97\u5185\u4e2d\u592e\uff09
\n\u30fb\u72ac\u306e\u9cf4\u304d\u58f0\uff08\u76ee\u306e\u524d)
\n\u30fb\u9a12\u3005\u3057\u3044\u5de5\u5834\u5185<\/td>\n		\u3046\u308b\u3055\u304f\u3066\u6211\u6162\u3067\u304d\u306a\u3044<\/td>\n<\/tr>\n
\u3046\u308b\u3055\u3044<\/td>\n80<\/td>\n\u30fb\u30d1\u30c1\u30f3\u30b3\u5e97\u5185
\n\u30fb\u5730\u4e0b\u9244\u3084\u96fb\u8eca\u306e\u8eca\u5185
\n\u30fb\u6551\u6025\u8eca\u306e\u30b5\u30a4\u30ec\u30f3
\n\u30fb\u30d4\u30a2\u30ce\u306e\u97f3<\/td>\n<\/tr>\n
70<\/td>\n\u30fb\u6383\u9664\u6a5f\u306e\u97f3
\n\u30fb\u9a12\u3005\u3057\u3044\u8857\u982d
\n\u30fb\u30ad\u30fc\u30bf\u30a4\u30d7\u306e\u97f3<\/td>\n		\u3046\u308b\u3055\u3044<\/td>\n<\/tr>\n
\u666e\u901a<\/td>\n60<\/td>\n\u30fb\u666e\u901a\u306e\u4f1a\u8a71
\n\u30fb\u30c7\u30d1\u30fc\u30c8\u306e\u5e97\u5185
\n\u30fb40hm\/h\u3067\u8d70\u884c\u3059\u308b\u81ea\u52d5\u8eca\u306e\u5185\u90e8<\/td>\n<\/tr>\n
50<\/td>\n\u30fb\u9759\u304b\u306a\u4e8b\u52d9\u6240
\n\u30fb\u30a8\u30a2\u30b3\u30f3\u306e\u5ba4\u5916\u6a5f<\/td>\n		\u65e5\u5e38\u751f\u6d3b\u3067\u671b\u307e\u3057\u3044\u7bc4\u56f2<\/td>\n<\/tr>\n
\u9759\u304b<\/td>\n40<\/td>\n\u30fb\u56f3\u66f8\u9928
\n\u30fb\u9759\u304b\u306a\u4f4f\u5b85\u5730
\n\u30fb\u6df1\u591c\u306e\u5e02\u5185<\/td>\n<\/tr>\n
30<\/td>\n\u30fb\u3055\u3055\u3084\u304d\u58f0
\n\u30fb\u925b\u7b46\u306e\u57f7\u7b46\u97f3<\/td>\n		\u9759\u304b<\/td>\n<\/tr>\n
20<\/td>\n\u30fb\u96ea\u306e\u964d\u308b\u97f3
\n\u30fb\u6728\u306e\u8449\u306e\u3075\u308c\u3042\u3046\u97f3<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

70dB\u4ee5\u4e0a\u306b\u306a\u3063\u3066\u3057\u307e\u3046\u3068\u3046\u308b\u3055\u3044\u3068\u611f\u3058\u300190dB\u4ee5\u4e0a\u306e\u97f3\u304c\u9577\u6642\u9593\u306a\u308a\u7d9a\u3051\u308b\u3068\u4eba\u9593\u306f\u6211\u6162\u304c\u51fa\u6765\u306a\u304f\u306a\u308b<\/strong><\/span>\u3068\u8a00\u308f\u308c\u3066\u3044\u307e\u3059\u3002
\n\u305d\u3057\u3066120dB\u306e\u97f3\u306b\u95a2\u3057\u3066\u306f\u3001\u8074\u899a\u6a5f\u80fd\u306b\u4f55\u3089\u304b\u306e\u7570\u5e38\u3092\u304d\u305f\u3057\u3066\u3057\u307e\u3046<\/strong><\/span>\u306e\u3067\u3059\u3002
\n\u79c1\u305f\u3061\u4eba\u9593\u304c\u65e5\u4e2d\u751f\u6d3b\u3059\u308b\u4e2d\u3067\u3001\u4e00\u822c\u7684\u306b\u30b9\u30c8\u30ec\u30b9\u3092\u611f\u3058\u305a\u306b\u66ae\u3089\u305b\u308b\u306e\u304c50dB\u4ee5\u4e0b<\/strong><\/span>\u306b\u306a\u308a\u307e\u3059\u3002
\n\u7761\u7720\u6642\u306b\u95a2\u3057\u3066\u306f\u3001\u4eba\u306b\u3088\u3063\u3066\u306f40dB\u4ee5\u4e0b\u3067\u306a\u3044\u3068\u7720\u308a\u306b\u4ed8\u3051\u305a\u306b\u30b9\u30c8\u30ec\u30b9\u3092\u62b1\u3048\u3066\u3057\u307e\u3046<\/strong><\/span>\u4e8b\u3082\u3042\u308b\u69d8\u3067\u3059\u3002<\/p>\n

\u3053\u308c\u3092\u8e0f\u307e\u3048\u3066\u3001\u3082\u3046\u5c11\u3057\u65e5\u5e38\u751f\u6d3b\u306e\u4e2d\u3067\u767a\u751f\u3057\u3066\u3044\u308bdB\u8a73\u7d30\u304c\u6b21\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\u5206\u985e<\/td>\n\u8a73\u7d30\u6a5f\u5668<\/td>\n\u9a12\u97f3\u30ec\u30d9\u30eb\u3010dB\u3011<\/td>\n<\/tr>\n
\u5bb6\u5ead\u7528\u6a5f\u5668<\/td>\n\u6383\u9664\u6a5f<\/td>\n\u7d0460\uff5e76<\/td>\n<\/tr>\n
\u76ee\u899a\u307e\u3057\u6642\u8a08<\/td>\n\u7d0464\uff5e75<\/td>\n<\/tr>\n
\u6d17\u6fef\u6a5f<\/td>\n\u7d0464\uff5e72<\/td>\n<\/tr>\n
\u96fb\u8a71\u306e\u30d9\u30eb\u97f3<\/td>\n\u7d0464\uff5e70<\/td>\n<\/tr>\n
\u5bb6\u5ead\u7528\u8a2d\u5099<\/td>\n\u98a8\u5442\u53c8\u306f\u7d66\u6392\u6c34\u97f3<\/td>\n\u7d0457\uff5e75<\/td>\n<\/tr>\n
\u30a8\u30a2\u30b3\u30f3<\/td>\n\u7d0441\uff5e59<\/td>\n<\/tr>\n
\u63db\u6c17\u6247<\/td>\n\u7d0442\uff5e58<\/td>\n<\/tr>\n
\u6e29\u98a8\u30d2\u30fc\u30bf\u30fc<\/td>\n\u7d0444\uff5e56<\/td>\n<\/tr>\n
\u97f3\u97ff\u6a5f\u5668<\/td>\n\u30d4\u30a2\u30ce<\/td>\n\u7d0480\uff5e90<\/td>\n<\/tr>\n
\u30a8\u30ec\u30af\u30c8\u30fc\u30f3<\/td>\n\u7d0477\uff5e86<\/td>\n<\/tr>\n
\u30b9\u30c6\u30ec\u30aa<\/td>\n\u7d0470\uff5e86<\/td>\n<\/tr>\n
\u30c6\u30ec\u30d3<\/td>\n\u7d0457\uff5e72<\/td>\n<\/tr>\n
\u305d\u306e\u4ed6<\/td>\n\u72ac\u306e\u9cf4\u304d\u58f0<\/td>\n\u7d0490\uff5e100<\/td>\n<\/tr>\n
\u5b50\u4f9b\u306e\u304b\u3051\u8db3<\/td>\n\u7d0450\uff5e66<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u5bb6\u5ead\u7528\u6a5f\u5668\u3084\u97f3\u97ff\u6a5f\u5668\u306f\u9a12\u97f3\u3068\u611f\u3058\u3089\u308c\u3066\u3057\u307e\u3046\u4e8b\u304c\u591a\u304f\u3001\u5b50\u3069\u3082\u306e\u8db3\u97f3\u306f\u6c17\u306b\u306a\u308b\u4eba\u3068\u6c17\u306b\u306a\u3089\u306a\u3044\u4eba\u304c\u308f\u304b\u308c\u308b\u306e\u7d0d\u5f97\u304c\u3044\u304f\u6570\u5024\u306b\u306a\u308b\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n

\u82e6\u60c5\u306b\u306a\u308b\u9a12\u97f3\u306f\u4f55db\uff1f<\/h2>\n

\u5b9f\u969b\u306b\u4eba\u304c\u9a12\u97f3\u3068\u611f\u3058\u3066\u3057\u307e\u3046dB\u306f\u308f\u304b\u308a\u307e\u3057\u305f\u304c\u3001\u30de\u30f3\u30b7\u30e7\u30f3\u3084\u30a2\u30d1\u30fc\u30c8\u306e\u8fd1\u96a3\u306b\u5bfe\u3057\u3066\u308250dB\u4ee5\u4e0b\u3067\u3042\u308c\u3070\u9a12\u97f3\u306b\u306a\u3089\u305a\u554f\u984c\u306b\u306a\u3089\u306a\u3044\u306e\u304b\u3068\u3044\u3046\u3068100\uff05\u305d\u3046\u3067\u306f\u306a\u3044\u3068\u601d\u3044\u307e\u3059\u3002
\n\u3068\u3044\u3046\u306e\u3082\u3001\u3053\u306edB\u306f\u3042\u304f\u307e\u3067\u540c\u3058\u5ba4\u5185\u3067\u8fd1\u304f\u306b\u3044\u305f\u6642\u306b\u611f\u3058\u308b\u97f3\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n

\u3067\u306f\u3001\u5b9f\u969b\u306b\u96a3\u306e\u90e8\u5c4b\u3084\u5bb6\u306b\u3044\u308b\u4eba\u3078\u306f\u3001\u81ea\u5206\u304c\u3069\u306e\u30ec\u30d9\u30eb\u306e\u97f3\u3092\u767a\u3059\u308b\u3068\u9a12\u97f3\u3068\u611f\u3058\u3066\u3057\u307e\u3046\u306e\u304b\u5ba4\u5185\u3068\u5ba4\u5916\u304b\u3089\u306e\u97f3\u306b\u3088\u308b\u611f\u3058\u65b9\u304c\u6b21\u306e\u8868\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\u9a12\u97f3\u30ec\u30d9\u30eb
\n[dB]<\/td>\n		\u9053\u8def\u306a\u3069\u5916\u304b\u3089\u306e\u4e0d\u898f\u5247\u306a\u9a12\u97f3<\/td>\n\u5ba4\u5185\u306e\u9a12\u97f3<\/td>\n\u5225\u5ba4\u304b\u3089\u306e\u9a12\u97f3<\/td>\n<\/tr>\n
75<\/td>\n\u975e\u5e38\u306b\u3046\u308b\u3055\u3044<\/td>\n\u3046\u308b\u3055\u304f\u3066\u6211\u6162\u3067\u304d\u306a\u3044<\/td>\n\u3046\u308b\u3055\u304f\u3066\u6211\u6162\u3067\u304d\u306a\u3044<\/td>\n<\/tr>\n
70<\/td>\n\u304b\u306a\u308a\u3046\u308b\u3055\u3044<\/td>\n\u975e\u5e38\u306b\u3046\u308b\u3055\u3044<\/td>\n\u3046\u308b\u3055\u304f\u3066\u6211\u6162\u3067\u304d\u306a\u3044<\/td>\n<\/tr>\n
65<\/td>\n\u975e\u5e38\u306b\u5927\u304d\u304f\u805e\u3053\u3048\u3046\u308b\u3055\u3044<\/td>\n\u304b\u306a\u308a\u3046\u308b\u3055\u3044
\n\u304b\u306a\u308a\u5927\u304d\u306a\u58f0\u3092\u51fa\u3055\u306a\u3044\u3068
\n\u4f1a\u8a71\u304c\u3067\u304d\u306a\u3044<\/td>\n		\u975e\u5e38\u306b\u3046\u308b\u3055\u3044<\/td>\n<\/tr>\n
60<\/td>\n\u304b\u306a\u308a\u5927\u304d\u304f\u805e\u3053\u3048\u3084\u3084\u3046\u308b\u3055\u3044<\/td>\n\u975e\u5e38\u306b\u5927\u304d\u304f\u805e\u3053\u3048\u3046\u308b\u3055\u3044
\n\u58f0\u3092\u5927\u304d\u304f\u3059\u308c\u3070\u4f1a\u8a71\u304c\u3067\u304d\u308b<\/td>\n		\u975e\u5e38\u306b\u5927\u304d\u304f\u805e\u3053\u3048
\n\u304b\u306a\u308a\u3046\u308b\u3055\u3044<\/td>\n<\/tr>\n
55<\/td>\n\u5927\u304d\u304f\u805e\u3053\u3048\u3001\u5c11\u3057\u3046\u308b\u3055\u3044<\/td>\n\u304b\u306a\u308a\u5927\u304d\u304f\u805e\u3053\u3048\u308b
\n\u591a\u5c11\u6ce8\u610f\u3059\u308c\u3070\u901a\u5e38\u306e\u4f1a\u8a71\u306f\u53ef\u80fd<\/td>\n		\u975e\u5e38\u306b\u5927\u304d\u304f\u805e\u3053\u3048
\n\u3046\u308b\u3055\u3044<\/td>\n<\/tr>\n
50<\/td>\n\u591a\u5c11\u5927\u304d\u304f\u805e\u3053\u3048\u308b<\/td>\n\u5927\u304d\u304f\u805e\u3053\u3048\u308b
\n\u901a\u5e38\u306e\u4f1a\u8a71\u306f\u53ef\u80fd<\/td>\n		\u304b\u306a\u308a\u5927\u304d\u304f\u805e\u3053\u3048\u308b<\/td>\n<\/tr>\n
45<\/td>\n\u805e\u3053\u3048\u308b\u304c\u307b\u3068\u3093\u3069\u6c17\u306b\u306a\u3089\u306a\u3044<\/td>\n\u591a\u5c11\u5927\u304d\u304f\u805e\u3053\u3048\u308b
\n\u901a\u5e38\u306e\u4f1a\u8a71\u306f\u5341\u5206\u306b\u53ef\u80fd<\/td>\n		\u5927\u304d\u304f\u805e\u3053\u3048\u6c17\u306b\u306a\u308b<\/td>\n<\/tr>\n
40<\/td>\n\u5c0f\u3055\u304f\u805e\u3053\u3048\u308b<\/td>\n\u805e\u3053\u3048\u308b\u4f1a\u8a71\u306b\u306f\u652f\u969c\u306a\u3057<\/td>\n\u591a\u5c11\u5927\u304d\u304f\u805e\u3053\u3048\u308b<\/td>\n<\/tr>\n
35<\/td>\n\u975e\u5e38\u306b\u5c0f\u3055\u304f\u805e\u3053\u3048\u308b<\/td>\n\u5c0f\u3055\u304f\u805e\u3053\u3048\u308b<\/td>\n\u805e\u3053\u3048\u308b<\/td>\n<\/tr>\n
30<\/td>\n\u307b\u3068\u3093\u3069\u805e\u3053\u3048\u306a\u3044<\/td>\n\u975e\u5e38\u306b\u5c0f\u3055\u304f\u805e\u3053\u3048\u308b<\/td>\n\u5c0f\u3055\u304f\u805e\u3053\u3048\u308b<\/td>\n<\/tr>\n
25<\/td>\n\u901a\u5e38\u3067\u306f\u805e\u3053\u3048\u306a\u3044<\/td>\n\u307b\u3068\u3093\u3069\u805e\u3053\u3048\u306a\u3044<\/td>\n\u975e\u5e38\u306b\u5c0f\u3055\u304f\u805e\u3053\u3048\u308b<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

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\u9a12\u97f3\u4f4e\u6e1b\u7b56\u306f\uff1f<\/h2>\n

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\n\u9a12\u97f3\u3092\u4e0b\u3052\u308b\u306b\u306f\u5927\u304d\u304f3\u3064\u306e\u65b9\u6cd5\u304c\u3042\u308a\u307e\u3059\u3002<\/strong><\/span><\/p>\n

\u97f3\u3092\u767a\u3059\u308b\u7269\u304b\u3089\u8ddd\u96e2\u3092\u3068\u308b<\/h3>\n

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\n\u306a\u306e\u3067\u3001\u4f8b\u3048\u3070\u9a12\u97f3\u3092\u53d7\u3051\u3066\u3044\u308b\u65b9\u306f\u3001\u30bd\u30d5\u30a1\u3084\u30d9\u30c3\u30c9\u306a\u3069\u306e\u81ea\u5206\u304c\u90e8\u5c4b\u306e\u4e2d\u3067\u3044\u308b\u4e8b\u304c\u591a\u3044\u7269\u3092\u58c1\u304b\u3089\u9060\u3056\u3051\u308b\u4e8b\u3067\u3059\u3002
\n\u307e\u305f\u3001\u9a12\u97f3\u3092\u767a\u3057\u3066\u3057\u308b\u4eba\u306f\u3001\u97f3\u3092\u767a\u3059\u308b\u7269\u3092\u58c1\u304b\u3089\u9060\u3056\u3051\u308b\u4e8b\u3067\u97f3\u306f\u5c0f\u3055\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n

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\u97f3\u306e\u767a\u751f\u65b9\u5411\u3092\u5909\u66f4\u3059\u308b<\/h3>\n

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\n\u306a\u306e\u3067\u3001\u97f3\u306e\u767a\u4fe1\u6e90\u306e\u65b9\u5411\u3092\u5909\u3048\u308b\u4e8b\u3067\u3001\u76f8\u624b\u306b\u4f1d\u308f\u308b\u9a12\u97f3\u3092\u4f4e\u6e1b\u3059\u308b\u4e8b\u304c\u51fa\u6765\u307e\u3059\u3002<\/p>\n

\u307e\u3068\u3081<\/h2>\n

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\n
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