{"id":921,"date":"2024-05-31T10:44:35","date_gmt":"2024-05-31T02:44:35","guid":{"rendered":"https:\/\/ecmicrophones.com\/?p=921"},"modified":"2026-03-05T12:38:51","modified_gmt":"2026-03-05T04:38:51","slug":"how-to-choose-the-sensitivity-of-electret-microphones","status":"publish","type":"post","link":"https:\/\/ecmicrophones.com\/ja\/how-to-choose-the-sensitivity-of-electret-microphones\/","title":{"rendered":"\u30a8\u30ec\u30af\u30c8\u30ec\u30c3\u30c8\u30de\u30a4\u30af\u306e\u611f\u5ea6\u306e\u9078\u3073\u65b9"},"content":{"rendered":"<p>\u30a8\u30ec\u30af\u30c8\u30ec\u30c3\u30c8 \u30de\u30a4\u30af\u306f\u3001\u9ad8\u611f\u5ea6\u3001\u30b3\u30f3\u30d1\u30af\u30c8\u3001\u4f4e\u6d88\u8cbb\u96fb\u529b\u3068\u3044\u3046\u5229\u70b9\u304c\u3042\u308a\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u4f7f\u7528\u3059\u308b\u306b\u306f\u7279\u5b9a\u306e\u898f\u683c\u3068\u8981\u4ef6\u306b\u5f93\u3046\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u898f\u683c\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u306f\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306b\u9069\u3057\u305f\u30de\u30a4\u30af\u3092\u52b9\u679c\u7684\u306b\u9078\u629e\u3059\u308b\u305f\u3081\u306b\u4e0d\u53ef\u6b20\u3067\u3059\u3002\u3053\u306e\u8a18\u4e8b\u306f\u3001\u3055\u307e\u3056\u307e\u306a\u30b7\u30ca\u30ea\u30aa\u306b\u9069\u3057\u305f\u30de\u30a4\u30af\u306e\u611f\u5ea6\u3092\u9078\u629e\u3059\u308b\u306e\u306b\u5f79\u7acb\u3064\u8a73\u7d30\u306a\u30ac\u30a4\u30c9\u3068\u3057\u3066\u5f79\u7acb\u3061\u307e\u3059\u3002<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"925\" height=\"540\" src=\"https:\/\/ecmicrophones.com\/wp-content\/uploads\/2024\/07\/How-to-Choose-the-Sensitivity-of-Electret-Microphones.png\" alt=\"\u30a8\u30ec\u30af\u30c8\u30ec\u30c3\u30c8\u30de\u30a4\u30af\u306e\u611f\u5ea6\u306e\u9078\u3073\u65b9\" class=\"wp-image-1544\" srcset=\"https:\/\/ecmicrophones.com\/wp-content\/uploads\/2024\/07\/How-to-Choose-the-Sensitivity-of-Electret-Microphones.png 925w, https:\/\/ecmicrophones.com\/wp-content\/uploads\/2024\/07\/How-to-Choose-the-Sensitivity-of-Electret-Microphones-300x175.png 300w, https:\/\/ecmicrophones.com\/wp-content\/uploads\/2024\/07\/How-to-Choose-the-Sensitivity-of-Electret-Microphones-768x448.png 768w, https:\/\/ecmicrophones.com\/wp-content\/uploads\/2024\/07\/How-to-Choose-the-Sensitivity-of-Electret-Microphones-18x12.png 18w, https:\/\/ecmicrophones.com\/wp-content\/uploads\/2024\/07\/How-to-Choose-the-Sensitivity-of-Electret-Microphones-600x350.png 600w\" sizes=\"auto, (max-width: 925px) 100vw, 925px\" \/><figcaption class=\"wp-element-caption\">\u7528\u9014\u306b\u5fdc\u3058\u305f\u30a8\u30ec\u30af\u30c8\u30ec\u30c3\u30c8\u30de\u30a4\u30af\u611f\u5ea6\u306e\u9078\u629e<\/figcaption><\/figure>\n<\/div>\n\n\n<div class=\"wp-block-rank-math-toc-block\" id=\"rank-math-toc\"><div>\u3053\u306e\u8a18\u4e8b\u3067<\/div><nav><ul><li class=\"\"><a href=\"#microphone-sensitivity\">\u30de\u30a4\u30af\u611f\u5ea6<\/a><ul><li class=\"\"><a href=\"#what-is-microphone-sensitivity\">\u30de\u30a4\u30af\u306e\u611f\u5ea6\u3068\u306f<\/a><\/li><li class=\"\"><a href=\"#how-to-test-microphone-sensitivity\">\u30de\u30a4\u30af\u306e\u611f\u5ea6\u3092\u30c6\u30b9\u30c8\u3059\u308b\u65b9\u6cd5<\/a><\/li><li class=\"\"><a href=\"#factors-influencing-microphone-sensitivity\">\u30de\u30a4\u30af\u306e\u611f\u5ea6\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u8981\u56e0<\/a><\/li><\/ul><\/li><li class=\"\"><a href=\"#matching-mic-sensitivity-with-amp-gain\">\u30de\u30a4\u30af\u306e\u611f\u5ea6\u3068\u30a2\u30f3\u30d7\u306e\u30b2\u30a4\u30f3\u3092\u5408\u308f\u305b\u308b<\/a><\/li><li class=\"\"><a href=\"#application-scenarios\">\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30b7\u30ca\u30ea\u30aa<\/a><ul><li class=\"\"><a href=\"#smart-speakers\">\u30b9\u30de\u30fc\u30c8\u30b9\u30d4\u30fc\u30ab\u30fc<\/a><\/li><li class=\"\"><a href=\"#security-cameras\">\u9632\u72af\u30ab\u30e1\u30e9<\/a><\/li><li class=\"\"><a href=\"#sound-controlled-lights\">\u97f3\u5236\u5fa1\u30e9\u30a4\u30c8<\/a><\/li><li class=\"\"><a href=\"#conference-recording\">\u4f1a\u8b70\u306e\u9332\u97f3<\/a><\/li><li class=\"\"><a href=\"#microphone-arrays\">\u30de\u30a4\u30af\u30a2\u30ec\u30a4<\/a><\/li><li class=\"\"><a href=\"#sound-controlled-toys\">\u97f3\u3067\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u3059\u308b\u304a\u3082\u3061\u3083<\/a><\/li><li class=\"\"><a href=\"#karaoke-microphones\">\u30ab\u30e9\u30aa\u30b1\u30de\u30a4\u30af<\/a><\/li><\/ul><\/li><li class=\"\"><a href=\"#conclusion\">\u7d50\u8ad6<\/a><\/li><\/ul><\/nav><\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"microphone-sensitivity\">\u30de\u30a4\u30af\u611f\u5ea6<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"what-is-microphone-sensitivity\">\u30de\u30a4\u30af\u306e\u611f\u5ea6\u3068\u306f<\/h3>\n\n\n\n<p>\u30de\u30a4\u30af\u306e\u611f\u5ea6\u3068\u306f\u3001\u4e00\u5b9a\u306e\u97f3\u306e\u5f37\u3055\u306e\u4e0b\u3067\u306e\u30c8\u30e9\u30f3\u30b9\u30c7\u30e5\u30fc\u30b5\u30fc\u306e\u51fa\u529b\u96fb\u5727\u3092\u6307\u3057\u3001\u97f3\u5727\u3092\u96fb\u6c17\u4fe1\u53f7\u306b\u5909\u63db\u3059\u308b\u52b9\u7387\u3092\u793a\u3057\u307e\u3059\u3002\u901a\u5e38\u306f dB \u3067\u6e2c\u5b9a\u3055\u308c\u3001\u6a19\u6e96\u97f3\u5727\u30ec\u30d9\u30eb\u306b\u3055\u3089\u3055\u308c\u305f\u3068\u304d\u306e\u51fa\u529b\u96fb\u5727\u3092\u8868\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"how-to-test-microphone-sensitivity\">\u30de\u30a4\u30af\u306e\u611f\u5ea6\u3092\u30c6\u30b9\u30c8\u3059\u308b\u65b9\u6cd5<\/h3>\n\n\n\n<p>\u611f\u5ea6\u306f\u30011Pa (94dB) \u306e\u97f3\u5727\u30ec\u30d9\u30eb\u3092\u9069\u7528\u3057\u3001\u51fa\u529b\u96fb\u5727\u3092 dBV \u3067\u6e2c\u5b9a\u3059\u308b\u3053\u3068\u306b\u3088\u3063\u3066\u30c6\u30b9\u30c8\u3055\u308c\u307e\u3059\u3002\u305f\u3068\u3048\u3070\u3001\u611f\u5ea6\u304c -30dBV\/Pa \u306e\u30de\u30a4\u30af\u306f\u3001-42dBV\/Pa \u306e\u30de\u30a4\u30af\u3088\u308a\u3082\u306f\u308b\u304b\u306b\u611f\u5ea6\u304c\u9ad8\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"factors-influencing-microphone-sensitivity\">\u30de\u30a4\u30af\u306e\u611f\u5ea6\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u8981\u56e0<\/h3>\n\n\n\n<p>\u611f\u5ea6\u306f\u3001\u30de\u30a4\u30af\u30ed\u30d5\u30a9\u30f3\u81ea\u4f53\u3060\u3051\u3067\u306a\u304f\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u56de\u8def\u3001\u7279\u306b\u8ca0\u8377\u62b5\u6297 (RL) \u306b\u3088\u3063\u3066\u3082\u5f71\u97ff\u3092\u53d7\u3051\u307e\u3059\u3002\u4e00\u822c\u7684\u306b\u306f\u3001\u611f\u5ea6\u304c\u9ad8\u3044\u307b\u3069\u671b\u307e\u3057\u3044\u3067\u3059\u304c\u3001\u6b6a\u307f\u3092\u907f\u3051\u308b\u305f\u3081\u306b\u30d0\u30e9\u30f3\u30b9\u3092\u3068\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"matching-mic-sensitivity-with-amp-gain\">\u30de\u30a4\u30af\u306e\u611f\u5ea6\u3068\u30a2\u30f3\u30d7\u306e\u30b2\u30a4\u30f3\u3092\u5408\u308f\u305b\u308b<\/h2>\n\n\n\n<p>\u30de\u30a4\u30af\u3092\u9078\u629e\u3059\u308b\u3068\u304d\u306f\u3001\u30a2\u30f3\u30d7\u306e\u30b2\u30a4\u30f3\u3092\u8003\u616e\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u9ad8\u30b2\u30a4\u30f3\u30a2\u30f3\u30d7<\/strong>: \u611f\u5ea6\u306e\u4f4e\u3044\u30de\u30a4\u30af\uff08-40dB \u7a0b\u5ea6\uff09\u3092\u4f7f\u7528\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/li>\n\n\n\n<li><strong>\u4f4e\u30b2\u30a4\u30f3\u30a2\u30f3\u30d7<\/strong>: \u611f\u5ea6\u306e\u9ad8\u3044\u30de\u30a4\u30af\uff08-30dB \u7a0b\u5ea6\uff09\u3092\u4f7f\u7528\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"application-scenarios\">\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30b7\u30ca\u30ea\u30aa<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"smart-speakers\">\u30b9\u30de\u30fc\u30c8\u30b9\u30d4\u30fc\u30ab\u30fc<\/h3>\n\n\n\n<p>Amazon Echo \u3084 Google Home \u306a\u3069\u306e\u30c7\u30d0\u30a4\u30b9\u3067\u306f\u3001\u6b63\u78ba\u306a\u97f3\u58f0\u30b3\u30de\u30f3\u30c9\u8a8d\u8b58\u306e\u305f\u3081\u306b\u9ad8\u3044\u611f\u5ea6\u304c\u5fc5\u8981\u3067\u3059\u3002\u30e6\u30fc\u30b6\u30fc\u3068\u306e\u660e\u77ad\u3067\u4fe1\u983c\u6027\u306e\u9ad8\u3044\u3084\u308a\u53d6\u308a\u3092\u78ba\u4fdd\u3059\u308b\u306b\u306f\u3001-30dB \u7a0b\u5ea6\u306e\u611f\u5ea6\u304c\u63a8\u5968\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<p><strong>\u30b9\u30de\u30fc\u30c8\u30b9\u30d4\u30fc\u30ab\u30fc\u306b\u304a\u3059\u3059\u3081\uff1a<\/strong>&nbsp;<a href=\"https:\/\/ecmicrophones.com\/ja\/9-7mm-omnidirectional-microphone-element-for-long-distance-audio-pickup\/\" data-type=\"product\" data-id=\"1756\">\u9577\u8ddd\u96e2\u97f3\u58f0\u30d4\u30c3\u30af\u30a2\u30c3\u30d7\u7528 9.7mm \u5168\u65b9\u5411\u6027\u30de\u30a4\u30af\u30a8\u30ec\u30e1\u30f3\u30c8<\/a><\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"security-cameras\">\u9632\u72af\u30ab\u30e1\u30e9<\/h3>\n\n\n\n<p>-25dB \u7a0b\u5ea6\u306e\u9ad8\u611f\u5ea6\u306f\u3001\u7279\u306b\u9577\u8ddd\u96e2\u3084\u9ad8\u6240\u3067\u306e\u30af\u30ea\u30a2\u306a\u97f3\u58f0\u30ad\u30e3\u30d7\u30c1\u30e3\u306b\u4e0d\u53ef\u6b20\u3067\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u5fae\u304b\u306a\u97f3\u3082\u62fe\u3048\u308b\u3088\u3046\u306b\u306a\u308a\u3001\u76e3\u8996\u80fd\u529b\u304c\u5411\u4e0a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p><strong>\u9632\u72af\u30ab\u30e1\u30e9\u306b\u304a\u3059\u3059\u3081\uff1a<\/strong>&nbsp;<a href=\"https:\/\/ecmicrophones.com\/ja\/6mm-high-sensitivity-microphone-element-with-pins-for-conference-systems\/\" data-type=\"product\" data-id=\"1685\">\u4f1a\u8b70\u30b7\u30b9\u30c6\u30e0\u7528\u30d4\u30f3\u4ed8\u304d 6mm \u9ad8\u611f\u5ea6\u30de\u30a4\u30af\u30a8\u30ec\u30e1\u30f3\u30c8<\/a><\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"sound-controlled-lights\">\u97f3\u5236\u5fa1\u30e9\u30a4\u30c8<\/h3>\n\n\n\n<p>\u97f3\u3067\u5236\u5fa1\u3055\u308c\u308b\u7167\u660e\u306e\u5834\u5408\u3001\u611f\u5ea6\u306f\u91cd\u8981\u3067\u3059\u304c\u3001\u5468\u6ce2\u6570\u5fdc\u7b54\u3068\u6b6a\u307f\u306f\u305d\u308c\u307b\u3069\u91cd\u8981\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u78ba\u5b9f\u306b\u4f5c\u52d5\u3055\u305b\u308b\u306b\u306f\u3001-30dB \u3092\u8d85\u3048\u308b\u611f\u5ea6\u304c\u63a8\u5968\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<p><strong>\ud83d\udc49\u30b5\u30a6\u30f3\u30c9\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u30e9\u30a4\u30c8\u306b\u304a\u3059\u3059\u3081\uff1a<\/strong>&nbsp;<a href=\"https:\/\/ecmicrophones.com\/ja\/4mm-voice-recognition-electret-microphone-element-with-leads\/\" data-type=\"product\" data-id=\"650\">4mm\u97f3\u58f0\u8a8d\u8b58\u30a8\u30ec\u30af\u30c8\u30ec\u30c3\u30c8\u30de\u30a4\u30af\u30a8\u30ec\u30e1\u30f3\u30c8\uff08\u30ea\u30fc\u30c9\u4ed8\u304d\uff09<\/a><\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"conference-recording\">\u4f1a\u8b70\u306e\u9332\u97f3<\/h3>\n\n\n\n<p>-32dB \uff5e -35dB \u7a0b\u5ea6\u306e\u4e2d\uff5e\u9ad8\u611f\u5ea6\u306f\u3001\u4f1a\u8b70\u3084\u8b1b\u7fa9\u3067\u30af\u30ea\u30a2\u306a\u97f3\u58f0\u3092\u9332\u97f3\u3059\u308b\u306e\u306b\u9069\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u30d0\u30e9\u30f3\u30b9\u306b\u3088\u308a\u3001\u30ce\u30a4\u30ba\u306b\u3088\u308b\u8aa4\u4f5c\u52d5\u3092\u9632\u304e\u306a\u304c\u3089\u3001\u3059\u3079\u3066\u306e\u767a\u8a00\u8005\u306e\u58f0\u304c\u660e\u77ad\u306b\u805e\u3053\u3048\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p><strong>\u4f1a\u8b70\u9332\u97f3\u306b\u304a\u3059\u3059\u3081\uff1a<\/strong>&nbsp;<a href=\"https:\/\/ecmicrophones.com\/ja\/9-7mm-unidirectional-electret-microphone-element-for-gooseneck\/\" data-type=\"product\" data-id=\"100\">\u30b0\u30fc\u30b9\u30cd\u30c3\u30af\u7528 9.7mm \u5358\u4e00\u6307\u5411\u6027\u30a8\u30ec\u30af\u30c8\u30ec\u30c3\u30c8 \u30de\u30a4\u30af\u30ed\u30d5\u30a9\u30f3 \u30a8\u30ec\u30e1\u30f3\u30c8<\/a><\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"microphone-arrays\">\u30de\u30a4\u30af\u30a2\u30ec\u30a4<\/h3>\n\n\n\n<p>\u30de\u30a4\u30af\u30ed\u30d5\u30a9\u30f3 \u30a2\u30ec\u30a4\u306b\u306f\u3001\u8aa4\u5dee\u304c 2dB \u672a\u6e80\u306e\u512a\u308c\u305f\u4e00\u8cab\u6027\u304c\u5fc5\u8981\u3067\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u4f1a\u8b70\u5ba4\u3084\u5927\u30db\u30fc\u30eb\u3067\u306e\u5747\u4e00\u306a\u97f3\u58f0\u30ad\u30e3\u30d7\u30c1\u30e3\u304c\u4fdd\u8a3c\u3055\u308c\u3001\u30a2\u30ec\u30a4\u5168\u4f53\u306e\u97f3\u8cea\u3068\u4fe1\u983c\u6027\u304c\u5411\u4e0a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p><strong>\u30de\u30a4\u30af\u30a2\u30ec\u30a4\u306b\u63a8\u5968\uff1a<\/strong>&nbsp;<a href=\"https:\/\/ecmicrophones.com\/ja\/9-7mm-omnidirectional-electret-microphone-cartridge-for-parabolic-microphone\/\" data-type=\"product\" data-id=\"173\">\u30d1\u30e9\u30dc\u30e9\u30de\u30a4\u30af\u7528 9.7mm \u5168\u6307\u5411\u6027\u30a8\u30ec\u30af\u30c8\u30ec\u30c3\u30c8\u30de\u30a4\u30af\u30ab\u30fc\u30c8\u30ea\u30c3\u30b8<\/a><\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"sound-controlled-toys\">\u97f3\u3067\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u3059\u308b\u304a\u3082\u3061\u3083<\/h3>\n\n\n\n<p>\u97f3\u3067\u5236\u5fa1\u3055\u308c\u308b\u304a\u3082\u3061\u3083\u306b\u5bfe\u3059\u308b\u8981\u4ef6\u306f\u53b3\u3057\u304f\u306a\u304f\u3001\u80cc\u666f\u306e\u30ce\u30a4\u30ba\u306b\u904e\u5ea6\u306b\u654f\u611f\u306b\u306a\u3089\u305a\u306b\u57fa\u672c\u7684\u306a\u97f3\u306e\u30b3\u30de\u30f3\u30c9\u306b\u53cd\u5fdc\u3059\u308b\u306b\u306f\u3001\u7d04 -35dB \u306e\u611f\u5ea6\u3067\u5341\u5206\u3067\u3059\u3002<\/p>\n\n\n\n<p><strong>\u97f3\u306e\u51fa\u308b\u304a\u3082\u3061\u3083\u306b\u304a\u3059\u3059\u3081\uff1a<\/strong>&nbsp;<a href=\"https:\/\/ecmicrophones.com\/ja\/high-temperature-resistant-electret-condenser-microphone\/\" data-type=\"product\" data-id=\"144\">\u8010\u9ad8\u6e29\u30a8\u30ec\u30af\u30c8\u30ec\u30c3\u30c8\u30b3\u30f3\u30c7\u30f3\u30b5\u30fc\u30de\u30a4\u30af<\/a><\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"karaoke-microphones\">\u30ab\u30e9\u30aa\u30b1\u30de\u30a4\u30af<\/h3>\n\n\n\n<p>\u30ab\u30e9\u30aa\u30b1\u30de\u30a4\u30af\u306e\u5834\u5408\u3001\u30d5\u30a3\u30fc\u30c9\u30d0\u30c3\u30af\u306e\u554f\u984c\u3092\u56de\u907f\u3057\u3001\u3088\u308a\u826f\u3044\u6b4c\u5531\u4f53\u9a13\u3092\u78ba\u4fdd\u3059\u308b\u305f\u3081\u306b\u3001-40dB \u7a0b\u5ea6\u306e\u4e2d\u7a0b\u5ea6\u306e\u611f\u5ea6\u304c\u63a8\u5968\u3055\u308c\u307e\u3059\u3002\u3053\u306e\u30ec\u30d9\u30eb\u306f\u3001\u97f3\u8cea\u3068\u30d5\u30a3\u30fc\u30c9\u30d0\u30c3\u30af\u9632\u6b62\u306e\u30d0\u30e9\u30f3\u30b9\u3092\u3068\u308b\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002<\/p>\n\n\n\n<p><strong>\u30ab\u30e9\u30aa\u30b1\u306b\u304a\u3059\u3059\u3081\uff1a<\/strong>&nbsp;<a href=\"https:\/\/ecmicrophones.com\/ja\/9-7mm-cardioid-electret-microphone-insert-for-ktv-karaoke\/\" data-type=\"product\" data-id=\"570\">KTV \u30ab\u30e9\u30aa\u30b1\u7528 9.7mm \u30ab\u30fc\u30c7\u30a3\u30aa\u30a4\u30c9 \u30a8\u30ec\u30af\u30c8\u30ec\u30c3\u30c8 \u30de\u30a4\u30af \u30a4\u30f3\u30b5\u30fc\u30c8<\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"conclusion\">\u7d50\u8ad6<\/h2>\n\n\n\n<p>\u30de\u30a4\u30af\u306e\u611f\u5ea6\u306f\u3001\u30b9\u30de\u30fc\u30c8 \u30b9\u30d4\u30fc\u30ab\u30fc\u304b\u3089\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3 \u30ab\u30e1\u30e9\u3001\u4f1a\u8b70\u306e\u9332\u97f3\u306b\u81f3\u308b\u307e\u3067\u3001\u3055\u307e\u3056\u307e\u306a\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306b\u3068\u3063\u3066\u91cd\u8981\u3067\u3059\u3002\u611f\u5ea6\u306e\u57fa\u6e96\u3092\u7406\u89e3\u3057\u3001\u9069\u5207\u306a\u30de\u30a4\u30af\u3092\u9078\u629e\u3059\u308b\u3068\u3001\u3055\u307e\u3056\u307e\u306a\u30b7\u30ca\u30ea\u30aa\u3067\u30aa\u30fc\u30c7\u30a3\u30aa \u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u5927\u5e45\u306b\u5411\u4e0a\u3067\u304d\u307e\u3059\u3002\u30a2\u30f3\u30d7\u306e\u30b2\u30a4\u30f3\u3068\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u8981\u4ef6\u3092\u614e\u91cd\u306b\u691c\u8a0e\u3059\u308b\u3053\u3068\u3067\u3001\u6700\u9069\u306a\u30de\u30a4\u30af\u3092\u9078\u629e\u3057\u3001\u6700\u9069\u306a\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3068\u30e6\u30fc\u30b6\u30fc\u6e80\u8db3\u5ea6\u3092\u78ba\u4fdd\u3067\u304d\u307e\u3059\u3002<\/p>","protected":false},"excerpt":{"rendered":"<p>Electret microphones offer the advantages of high sensitivity, compact size, and low power consumption. However, their use requires adherence to specific standards and requirements. Understanding these standards is essential for effectively selecting the right microphone for your application. This article serves as a detailed guide to help you choose the appropriate microphone sensitivity for various scenarios. Microphone Sensitivity What is Microphone Sensitivity Microphone sensitivity refers to the output voltage of a transducer under a certain intensity of sound, indicating how efficiently it converts sound pressure into an electrical signal. It is typically measured in dB, representing the output voltage when subjected to a standard sound pressure level. How to Test [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":1544,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[400],"tags":[661,660,659],"class_list":["post-921","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-product-guides","tag-gain-calibration","tag-sensitivity-grading","tag-signal-level"],"_links":{"self":[{"href":"https:\/\/ecmicrophones.com\/ja\/wp-json\/wp\/v2\/posts\/921","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ecmicrophones.com\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ecmicrophones.com\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ecmicrophones.com\/ja\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ecmicrophones.com\/ja\/wp-json\/wp\/v2\/comments?post=921"}],"version-history":[{"count":0,"href":"https:\/\/ecmicrophones.com\/ja\/wp-json\/wp\/v2\/posts\/921\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ecmicrophones.com\/ja\/wp-json\/wp\/v2\/media\/1544"}],"wp:attachment":[{"href":"https:\/\/ecmicrophones.com\/ja\/wp-json\/wp\/v2\/media?parent=921"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ecmicrophones.com\/ja\/wp-json\/wp\/v2\/categories?post=921"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ecmicrophones.com\/ja\/wp-json\/wp\/v2\/tags?post=921"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}