{"id":3979,"date":"2026-03-07T15:28:49","date_gmt":"2026-03-07T07:28:49","guid":{"rendered":"https:\/\/ecmicrophones.com\/?p=3979"},"modified":"2026-03-13T09:57:13","modified_gmt":"2026-03-13T01:57:13","slug":"electret-microphone-capsule-head-hole","status":"publish","type":"post","link":"https:\/\/ecmicrophones.com\/ja\/electret-microphone-capsule-head-hole\/","title":{"rendered":"\u30a8\u30ec\u30af\u30c8\u30ec\u30c3\u30c8\u30de\u30a4\u30af\u30ed\u30db\u30f3\u306e\u30ab\u30d7\u30bb\u30eb\u30d8\u30c3\u30c9\u306e\u7a74\uff1a\u6a5f\u80fd\u3068\u8a2d\u8a08\u306b\u95a2\u3059\u308b\u8003\u5bdf"},"content":{"rendered":"<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\/2026\/03\/electret-microphone-capsule-small-large-port.png\" alt=\"\u30a8\u30ec\u30af\u30c8\u30ec\u30c3\u30c8\u30fb\u30de\u30a4\u30af\u30ed\u30db\u30f3\u30fb\u30ab\u30d7\u30bb\u30eb\u306e\u5927\u5c0f\u306e\u97f3\u97ff\u30dd\u30fc\u30c8\u3068\u632f\u52d5\u677f\u30b5\u30a4\u30ba\u306e\u6bd4\u8f03\" class=\"wp-image-4006\" srcset=\"https:\/\/ecmicrophones.com\/wp-content\/uploads\/2026\/03\/electret-microphone-capsule-small-large-port.png 925w, https:\/\/ecmicrophones.com\/wp-content\/uploads\/2026\/03\/electret-microphone-capsule-small-large-port-300x175.png 300w, https:\/\/ecmicrophones.com\/wp-content\/uploads\/2026\/03\/electret-microphone-capsule-small-large-port-768x448.png 768w, https:\/\/ecmicrophones.com\/wp-content\/uploads\/2026\/03\/electret-microphone-capsule-small-large-port-18x12.png 18w, https:\/\/ecmicrophones.com\/wp-content\/uploads\/2026\/03\/electret-microphone-capsule-small-large-port-600x350.png 600w\" sizes=\"auto, (max-width: 925px) 100vw, 925px\" \/><figcaption class=\"wp-element-caption\">\u30a8\u30ec\u30af\u30c8\u30ec\u30c3\u30c8\u30de\u30a4\u30af\u30ed\u30db\u30f3\u30ab\u30d7\u30bb\u30eb\u306b\u304a\u3051\u308b\u5927\u5c0f\u97f3\u97ff\u30dd\u30fc\u30c8\u306e\u6bd4\u8f03<\/figcaption><\/figure>\n<\/div>\n\n\n<p>\u30d8\u30c3\u30c9\u30db\u30fc\u30eb&nbsp;<strong>\u30a8\u30ec\u30af\u30c8\u30ec\u30c3\u30c8\u30fb\u30de\u30a4\u30af\u30ed\u30db\u30f3\u30fb\u30ab\u30d7\u30bb\u30eb<\/strong>&nbsp;\u306f\u5358\u306a\u308b\u69cb\u9020\u7684\u306a\u7279\u5fb4\u3067\u306f\u306a\u304f\u3001\u5165\u5ff5\u306b\u8a2d\u8a08\u3055\u308c\u305f\u97f3\u97ff\u7684\u306a\u8981\u7d20\u306a\u306e\u3067\u3059\u3002\u305d\u306e\u4e3b\u306a\u6a5f\u80fd\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002&nbsp;<strong>\u97f3\u6ce2\u8a98\u5c0e\u3001\u5468\u6ce2\u6570\u7279\u6027\u8abf\u6574\u3001\u6307\u5411\u6027\u5236\u5fa1\u3001\u5727\u529b\u5747\u4e00\u5316\u3001\u4fdd\u8b77<\/strong>. .\u30d8\u30c3\u30c9\u30db\u30fc\u30eb\u306e\u8a2d\u8a08\u306b\u95a2\u3059\u308b\u6280\u8853\u7684\u306a\u6c7a\u5b9a\u306b\u306f\u3001\u6027\u80fd\u3001\u8010\u4e45\u6027\u3001\u74b0\u5883\u3078\u306e\u5805\u7262\u6027\u306e\u9593\u306e\u30c8\u30ec\u30fc\u30c9\u30aa\u30d5\u304c\u542b\u307e\u308c\u308b\u3002.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">1.\u97f3\u6ce2\u30ac\u30a4\u30c0\u30f3\u30b9<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u4e2d\u6838\u6a5f\u80fd\uff1a<\/strong>&nbsp;\u97f3\u304c\u632f\u52d5\u677f\u306b\u5230\u9054\u3059\u308b\u305f\u3081\u306e\u97f3\u97ff\u7d4c\u8def\u3092\u63d0\u4f9b\u3057\u3001\u52b9\u7387\u7684\u306a\u97f3\u97ff\u304b\u3089\u96fb\u6c17\u3078\u306e\u5909\u63db\u3092\u53ef\u80fd\u306b\u3059\u308b\u3002.<\/li>\n\n\n\n<li><strong>\u30a8\u30f3\u30b8\u30cb\u30a2\u30ea\u30f3\u30b0\u306e\u6d1e\u5bdf<\/strong> \u8a2d\u8a08\u8005\u306f\u3001\u307b\u3053\u308a\u3084\u6e7f\u6c17\u306e\u4fb5\u5165\u3092\u6700\u5c0f\u9650\u306b\u6291\u3048\u306a\u304c\u3089\u3001\u30a8\u30cd\u30eb\u30ae\u30fc\u4f1d\u9054\u3092\u6700\u5927\u5316\u3059\u308b\u305f\u3081\u306b\u7a74\u306e\u5927\u304d\u3055\u306e\u30d0\u30e9\u30f3\u30b9\u3092\u3068\u3063\u3066\u3044\u308b\u3002.<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"925\" height=\"400\" src=\"https:\/\/ecmicrophones.com\/wp-content\/uploads\/2026\/03\/sound-wave-guidance.png\" alt=\"\u97f3\u6ce2\u3092\u632f\u52d5\u677f\u306b\u5c0e\u304f\u30a8\u30ec\u30af\u30c8\u30ec\u30c3\u30c8\u30de\u30a4\u30af\u30ed\u30db\u30f3\u306e\u30d8\u30c3\u30c9\u30db\u30fc\u30eb\" class=\"wp-image-3988\" srcset=\"https:\/\/ecmicrophones.com\/wp-content\/uploads\/2026\/03\/sound-wave-guidance.png 925w, https:\/\/ecmicrophones.com\/wp-content\/uploads\/2026\/03\/sound-wave-guidance-300x130.png 300w, https:\/\/ecmicrophones.com\/wp-content\/uploads\/2026\/03\/sound-wave-guidance-768x332.png 768w, https:\/\/ecmicrophones.com\/wp-content\/uploads\/2026\/03\/sound-wave-guidance-18x8.png 18w, https:\/\/ecmicrophones.com\/wp-content\/uploads\/2026\/03\/sound-wave-guidance-600x259.png 600w\" sizes=\"auto, (max-width: 925px) 100vw, 925px\" \/><figcaption class=\"wp-element-caption\">\u97f3\u6ce2\u3092\u632f\u52d5\u677f\u306b\u5c0e\u304f\u30a8\u30ec\u30af\u30c8\u30ec\u30c3\u30c8\u30de\u30a4\u30af\u30ed\u30db\u30f3\u306e\u30d8\u30c3\u30c9\u30db\u30fc\u30eb<\/figcaption><\/figure>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\">2.\u5468\u6ce2\u6570\u7279\u6027\u306e\u30c1\u30e5\u30fc\u30cb\u30f3\u30b0<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u97f3\u97ff\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\uff1a<\/strong>&nbsp;\u7a74\u306e\u5f62\u72b6\u306f\u97f3\u97ff\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u306b\u5f71\u97ff\u3057\u3001\u30de\u30a4\u30af\u30ed\u30db\u30f3\u306e\u5468\u6ce2\u6570\u7279\u6027\u3092\u5f62\u6210\u3059\u308b\u3002.<\/li>\n\n\n\n<li><strong>\u30a8\u30f3\u30b8\u30cb\u30a2\u30ea\u30f3\u30b0\u306e\u6d1e\u5bdf<\/strong>&nbsp;\u5c0f\u578b\u307e\u305f\u306f\u591a\u7a74\u8a2d\u8a08\u306f\u9ad8\u5468\u6ce2\u30ce\u30a4\u30ba\u3092\u6e1b\u8870\u3055\u305b\u3001\u30dd\u30fc\u30bf\u30d6\u30eb\u30fb\u30c7\u30d0\u30a4\u30b9\u306b\u306f\u6709\u7528\u3060\u304c\u3001\u8d85\u9ad8\u5468\u6ce2\u3067\u306e\u660e\u77ad\u5ea6\u304c\u308f\u305a\u304b\u306b\u5909\u5316\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u3002\u30c8\u30ec\u30fc\u30c9\u30aa\u30d5\u306f\u30c7\u30d0\u30a4\u30b9\u306e\u512a\u5148\u9806\u4f4d\u306b\u4f9d\u5b58\u3059\u308b\u3002.<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"925\" height=\"400\" src=\"https:\/\/ecmicrophones.com\/wp-content\/uploads\/2026\/03\/frequency-response.png\" alt=\"\u30a8\u30ec\u30af\u30c8\u30ec\u30c3\u30c8\u30de\u30a4\u30af\u30ed\u30db\u30f3\u30ab\u30d7\u30bb\u30eb\u306e\u5468\u6ce2\u6570\u7279\u6027\u30c1\u30e5\u30fc\u30cb\u30f3\u30b0\u3068\u30d8\u30c3\u30c9\u30db\u30fc\u30eb\u30c7\u30b6\u30a4\u30f3\" class=\"wp-image-3987\" srcset=\"https:\/\/ecmicrophones.com\/wp-content\/uploads\/2026\/03\/frequency-response.png 925w, https:\/\/ecmicrophones.com\/wp-content\/uploads\/2026\/03\/frequency-response-300x130.png 300w, https:\/\/ecmicrophones.com\/wp-content\/uploads\/2026\/03\/frequency-response-768x332.png 768w, https:\/\/ecmicrophones.com\/wp-content\/uploads\/2026\/03\/frequency-response-18x8.png 18w, https:\/\/ecmicrophones.com\/wp-content\/uploads\/2026\/03\/frequency-response-600x259.png 600w\" sizes=\"auto, (max-width: 925px) 100vw, 925px\" \/><figcaption class=\"wp-element-caption\">\u30a8\u30ec\u30af\u30c8\u30ec\u30c3\u30c8\u30de\u30a4\u30af\u30ed\u30db\u30f3\u30ab\u30d7\u30bb\u30eb\u306e\u5468\u6ce2\u6570\u7279\u6027\u30c1\u30e5\u30fc\u30cb\u30f3\u30b0\u3068\u30d8\u30c3\u30c9\u30db\u30fc\u30eb\u30c7\u30b6\u30a4\u30f3<\/figcaption><\/figure>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\">3.\u6307\u5411\u6027\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u30de\u30eb\u30c1\u30db\u30fc\u30eb\u306e\u59a8\u5bb3\uff1a<\/strong>&nbsp;\u8907\u6570\u306e\u7a74\u306b\u3088\u308b\u4f4d\u76f8\u5dee\u306b\u3088\u3063\u3066\u3001\u7279\u5b9a\u306e\u6975\u6027\u30d1\u30bf\u30fc\u30f3\uff08\u7121\u6307\u5411\u6027\u3001\u5358\u4e00\u6307\u5411\u6027\u306a\u3069\uff09\u3092\u5b9f\u73fe\u3067\u304d\u308b\u3002.<\/li>\n\n\n\n<li><strong>\u30a8\u30f3\u30b8\u30cb\u30a2\u30ea\u30f3\u30b0\u306e\u6d1e\u5bdf<\/strong>&nbsp;\u591a\u7a74\u30ec\u30a4\u30a2\u30a6\u30c8\u306f\u6307\u5411\u611f\u5ea6\u3092\u5411\u4e0a\u3055\u305b\u308b\u304c\u3001\u88fd\u9020\u306e\u8907\u96d1\u3055\u3092\u5897\u3059\u3002\u8a2d\u8a08\u8005\u306f\u3001\u6307\u5411\u6027\u3068\u30b7\u30f3\u30d7\u30eb\u3055\u3092\u6bd4\u8f03\u691c\u8a0e\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">4.\u5727\u529b\u5747\u4e00\u5316<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u5185\u90e8\u3068\u5916\u90e8\u306e\u30d0\u30e9\u30f3\u30b9\uff1a<\/strong>&nbsp;\u6e29\u5ea6\u3084\u9ad8\u5ea6\u306e\u5909\u5316\u306b\u3088\u308b\u30c0\u30a4\u30a2\u30d5\u30e9\u30e0\u306e\u5909\u5f62\u3092\u9632\u304e\u3001\u7a7a\u6c17\u5727\u306e\u5747\u4e00\u5316\u3092\u53ef\u80fd\u306b\u3059\u308b\u7a74\u3002.<\/li>\n\n\n\n<li><strong>\u30a8\u30f3\u30b8\u30cb\u30a2\u30ea\u30f3\u30b0\u306e\u6d1e\u5bdf<\/strong>&nbsp;\u5c4b\u5916\u3084\u822a\u7a7a\u6a5f\u5185\u3067\u4f7f\u7528\u3055\u308c\u308b\u6a5f\u5668\u306b\u306f\u7279\u306b\u91cd\u8981\u3067\u3059\u3002\u8a2d\u8a08\u8005\u306f\u5fdc\u7b54\u6027\u3068\u74b0\u5883\u6c5a\u67d3\u306e\u30ea\u30b9\u30af\u306e\u30d0\u30e9\u30f3\u30b9\u3092\u3068\u308b\u3002.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">5.\u8eab\u4f53\u4fdd\u8b77\u3068\u7c89\u5875\u9632\u6b62<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u30d0\u30ea\u30a2\u6a5f\u80fd\uff1a<\/strong>&nbsp;\u30c0\u30b9\u30c8\u30b9\u30af\u30ea\u30fc\u30f3\u307e\u305f\u306f\u758e\u6c34\u6027\u30e1\u30f3\u30d6\u30ec\u30f3\u304c\u30c0\u30a4\u30a2\u30d5\u30e9\u30e0\u3068\u30a8\u30ec\u30af\u30c8\u30ec\u30c3\u30c8\u5c64\u306e\u6c5a\u67d3\u3092\u9632\u3050\u3002.<\/li>\n\n\n\n<li><strong>\u30a8\u30f3\u30b8\u30cb\u30a2\u30ea\u30f3\u30b0\u306e\u6d1e\u5bdf<\/strong>&nbsp;\u4fdd\u8b77\u5c64\u306f\u8010\u4e45\u6027\u3092\u9ad8\u3081\u308b\u304c\u3001\u97f3\u97ff\u900f\u904e\u6027\u306b\u82e5\u5e72\u306e\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u3002\u6750\u6599\u306f\u3001\u4fdd\u8b77\u3068\u6700\u5c0f\u9650\u306e\u97f3\u97ff\u5f71\u97ff\u306e\u30d0\u30e9\u30f3\u30b9\u3092\u53d6\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002.<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"925\" height=\"400\" src=\"https:\/\/ecmicrophones.com\/wp-content\/uploads\/2026\/03\/protection-dust.png\" alt=\"\u9632\u5875\u30b9\u30af\u30ea\u30fc\u30f3\u4ed8\u304d\u30a8\u30ec\u30af\u30c8\u30ec\u30c3\u30c8\u30fb\u30de\u30a4\u30af\u30fb\u30ab\u30d7\u30bb\u30eb\u30fb\u30d8\u30c3\u30c9\u30db\u30fc\u30eb\" class=\"wp-image-3990\" srcset=\"https:\/\/ecmicrophones.com\/wp-content\/uploads\/2026\/03\/protection-dust.png 925w, https:\/\/ecmicrophones.com\/wp-content\/uploads\/2026\/03\/protection-dust-300x130.png 300w, https:\/\/ecmicrophones.com\/wp-content\/uploads\/2026\/03\/protection-dust-768x332.png 768w, https:\/\/ecmicrophones.com\/wp-content\/uploads\/2026\/03\/protection-dust-18x8.png 18w, https:\/\/ecmicrophones.com\/wp-content\/uploads\/2026\/03\/protection-dust-600x259.png 600w\" sizes=\"auto, (max-width: 925px) 100vw, 925px\" \/><figcaption class=\"wp-element-caption\">\u9632\u5875\u30b9\u30af\u30ea\u30fc\u30f3\u4ed8\u304d\u30a8\u30ec\u30af\u30c8\u30ec\u30c3\u30c8\u30fb\u30de\u30a4\u30af\u30fb\u30ab\u30d7\u30bb\u30eb\u30fb\u30d8\u30c3\u30c9\u30db\u30fc\u30eb<\/figcaption><\/figure>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\">\u7dcf\u62ec\u8868<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><th class=\"has-text-align-left\" data-align=\"left\">\u6a5f\u80fd<\/th><th class=\"has-text-align-left\" data-align=\"left\">\u539f\u5247<\/th><th class=\"has-text-align-left\" data-align=\"left\">\u30a8\u30f3\u30b8\u30cb\u30a2\u30ea\u30f3\u30b0\u30fb\u30a4\u30f3\u30b5\u30a4\u30c8<\/th><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">\u97f3\u6ce2\u30ac\u30a4\u30c0\u30f3\u30b9<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u632f\u52d5\u677f\u3078\u306e\u97f3\u97ff\u7d4c\u8def\u3092\u63d0\u4f9b<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u30a8\u30cd\u30eb\u30ae\u30fc\u4f1d\u9054\u306e\u305f\u3081\u306e\u7a74\u30b5\u30a4\u30ba\u3068\u74b0\u5883\u4fdd\u8b77\u306e\u30d0\u30e9\u30f3\u30b9<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">\u5468\u6ce2\u6570\u7279\u6027\u306e\u30c1\u30e5\u30fc\u30cb\u30f3\u30b0<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u97f3\u97ff\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u5909\u8abf<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u660e\u77ad\u5ea6\u3092\u4fdd\u3061\u306a\u304c\u3089\u9ad8\u5468\u6ce2\u30ce\u30a4\u30ba\u3092\u6e1b\u8870\u3055\u305b\u308b\u3002\u30c8\u30ec\u30fc\u30c9\u30aa\u30d5\u306f\u30c7\u30d0\u30a4\u30b9\u306e\u30bf\u30a4\u30d7\u306b\u4f9d\u5b58\u3059\u308b\u3002<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">\u6307\u5411\u6027\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u8907\u6570\u306e\u7a74\u306b\u3088\u308b\u4f4d\u76f8\u5dee\u304c\u504f\u5149\u30d1\u30bf\u30fc\u30f3\u3092\u5f62\u6210<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u591a\u7a74\u30ec\u30a4\u30a2\u30a6\u30c8\u306f\u6307\u5411\u6027\u3092\u5411\u4e0a\u3055\u305b\u308b\u304c\u3001\u88fd\u9020\u306e\u8907\u96d1\u3055\u3092\u5897\u3059<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">\u5727\u529b\u5747\u4e00\u5316<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u5185\u5916\u6c17\u5727\u3092\u5747\u7b49\u5316<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u5fdc\u7b54\u6027\u3068\u30b3\u30f3\u30bf\u30df\u30cd\u30fc\u30b7\u30e7\u30f3\u30ea\u30b9\u30af\u306e\u30d0\u30e9\u30f3\u30b9\u3002<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">\u4fdd\u8b77\u3068\u7c89\u5875\u9632\u6b62<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u7269\u7406\u7684\u30d0\u30ea\u30a2\u3068\u885d\u6483\u5206\u6563<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u4fdd\u8b77\u5c64\u306f\u8010\u4e45\u6027\u3092\u5411\u4e0a\u3055\u305b\u308b\u304c\u3001\u97f3\u97ff\u900f\u904e\u6027\u306b\u82e5\u5e72\u306e\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u7d50\u8ad6\u3068\u3057\u3066\u3001\u30a8\u30ec\u30af\u30c8\u30ec\u30c3\u30c8\u30de\u30a4\u30af\u30ed\u30db\u30f3\u30ab\u30d7\u30bb\u30eb\u306e\u30d8\u30c3\u30c9\u30db\u30fc\u30eb\u306f\u3001\u97f3\u97ff\u3001\u4fdd\u8b77\u3001\u5b9f\u7528\u7684\u306a\u30a8\u30f3\u30b8\u30cb\u30a2\u30ea\u30f3\u30b0\u306e\u30c8\u30ec\u30fc\u30c9\u30aa\u30d5\u304c\u4ea4\u5dee\u3059\u308b\u91cd\u8981\u306a\u8981\u7d20\u3067\u3042\u308b\u3002\u3053\u308c\u3089\u306e\u8003\u616e\u70b9\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u3067\u3001\u8a2d\u8a08\u8005\u306f\u30e2\u30d0\u30a4\u30eb\u6a5f\u5668\u304b\u3089\u30d7\u30ed\u7528\u30aa\u30fc\u30c7\u30a3\u30aa\u6a5f\u5668\u307e\u3067\u3001\u5e45\u5e83\u3044\u7528\u9014\u5411\u3051\u306b\u30de\u30a4\u30af\u30ed\u30db\u30f3\u3092\u6700\u9069\u5316\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u30ab\u30d7\u30bb\u30eb\u306e\u76f4\u5f84\u304c\u30c0\u30a4\u30a2\u30d5\u30e9\u30e0\u306e\u30b5\u30a4\u30ba\u3084\u30d4\u30c3\u30af\u30a2\u30c3\u30d7\u30db\u30fc\u30eb\u306e\u30ec\u30a4\u30a2\u30a6\u30c8\u306b\u3069\u306e\u3088\u3046\u306b\u5f71\u97ff\u3059\u308b\u304b\u306b\u3064\u3044\u3066\u306f\u3001\u4ee5\u4e0b\u306e\u30da\u30fc\u30b8\u3092\u3054\u53c2\u7167\u304f\u3060\u3055\u3044\u3002\u00a0<a href=\"https:\/\/ecmicrophones.com\/ja\/electret-microphone-sizes-pickup-hole-diaphragm-and-tonal-characteristics\/\" data-type=\"link\" data-id=\"https:\/\/ecmicrophones.com\/electret-microphone-sizes-pickup-hole-diaphragm-and-tonal-characteristics\/\">\u30a8\u30ec\u30af\u30c8\u30ec\u30c3\u30c8\u30de\u30a4\u30af\u30ed\u30db\u30f3\u30b5\u30a4\u30ba\u30ac\u30a4\u30c9<\/a>.<\/p>","protected":false},"excerpt":{"rendered":"<p>The head hole in an&nbsp;electret microphone capsule&nbsp;is more than just a structural feature\u2014it is a carefully designed acoustic element. Its key functions include&nbsp;sound wave guidance, frequency response tuning, directivity control, pressure equalization, and protection. Engineering decisions on head hole design involve trade-offs between performance, durability, and environmental robustness. 1. Sound Wave Guidance 2. Frequency Response Tuning 3. Directivity Control 4. Pressure Equalization 5. Physical Protection and Dust Prevention Summary Table Function Principle Engineering Insight Sound Wave Guidance Provides acoustic path to diaphragm Balance hole size for energy transfer vs. environmental protection Frequency Response Tuning Acoustic impedance modulation Damp high-frequency noise while preserving clarity; trade-offs depend on device type Directivity Control [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":4006,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[677,685,679],"class_list":["post-3979","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-technical-insights","tag-electret-microphone","tag-head-hole","tag-microphone-capsule"],"_links":{"self":[{"href":"https:\/\/ecmicrophones.com\/ja\/wp-json\/wp\/v2\/posts\/3979","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=3979"}],"version-history":[{"count":0,"href":"https:\/\/ecmicrophones.com\/ja\/wp-json\/wp\/v2\/posts\/3979\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ecmicrophones.com\/ja\/wp-json\/wp\/v2\/media\/4006"}],"wp:attachment":[{"href":"https:\/\/ecmicrophones.com\/ja\/wp-json\/wp\/v2\/media?parent=3979"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ecmicrophones.com\/ja\/wp-json\/wp\/v2\/categories?post=3979"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ecmicrophones.com\/ja\/wp-json\/wp\/v2\/tags?post=3979"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}