{"id":2029,"date":"2024-10-30T16:56:30","date_gmt":"2024-10-30T08:56:30","guid":{"rendered":"https:\/\/ecmicrophones.com\/?p=2029"},"modified":"2026-03-05T12:40:01","modified_gmt":"2026-03-05T04:40:01","slug":"understanding-the-test-conditions-of-microphone-capsules","status":"publish","type":"post","link":"https:\/\/ecmicrophones.com\/ja\/understanding-the-test-conditions-of-microphone-capsules\/","title":{"rendered":"\u30de\u30a4\u30af\u30ab\u30d7\u30bb\u30eb\u306e\u30c6\u30b9\u30c8\u6761\u4ef6\u3092\u7406\u89e3\u3059\u308b"},"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\/2024\/10\/Variety-of-microphone-capsules-displayed.png\" alt=\"\u3055\u307e\u3056\u307e\u306a\u30de\u30a4\u30af\u30ab\u30d7\u30bb\u30eb\u3092\u5c55\u793a\" class=\"wp-image-2033\" srcset=\"https:\/\/ecmicrophones.com\/wp-content\/uploads\/2024\/10\/Variety-of-microphone-capsules-displayed.png 925w, https:\/\/ecmicrophones.com\/wp-content\/uploads\/2024\/10\/Variety-of-microphone-capsules-displayed-300x175.png 300w, https:\/\/ecmicrophones.com\/wp-content\/uploads\/2024\/10\/Variety-of-microphone-capsules-displayed-768x448.png 768w, https:\/\/ecmicrophones.com\/wp-content\/uploads\/2024\/10\/Variety-of-microphone-capsules-displayed-18x12.png 18w, https:\/\/ecmicrophones.com\/wp-content\/uploads\/2024\/10\/Variety-of-microphone-capsules-displayed-600x350.png 600w\" sizes=\"auto, (max-width: 925px) 100vw, 925px\" \/><figcaption class=\"wp-element-caption\">\u30a8\u30ec\u30af\u30c8\u30ec\u30c3\u30c8\u30fb\u30de\u30a4\u30af\u30ed\u30db\u30f3\u30fb\u30ab\u30d7\u30bb\u30eb\u306f\u3001\u69d8\u3005\u306a\u7528\u9014\u306b\u5bfe\u5fdc\u3067\u304d\u308b\u3088\u3046\u3001\u69d8\u3005\u306a\u30b5\u30a4\u30ba\u304c\u7528\u610f\u3055\u308c\u3066\u3044\u308b\u3002<\/figcaption><\/figure>\n<\/div>\n\n\n<p>\u30de\u30a4\u30af\u696d\u754c\u3067\u306f\u3001\u88fd\u54c1\u4ed5\u69d8\u66f8\u306b\u8a18\u8f09\u3055\u308c\u3066\u3044\u308b\u30c6\u30b9\u30c8\u6761\u4ef6\u3092\u628a\u63e1\u3059\u308b\u3053\u3068\u304c\u975e\u5e38\u306b\u91cd\u8981\u3067\u3059\u3002\u3053\u308c\u3089\u306e\u6761\u4ef6\u306f\u3001\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u8a55\u4fa1\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u3060\u3051\u3067\u306a\u304f\u3001\u5b9f\u969b\u306e\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u306e\u88fd\u54c1\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306b\u3082\u76f4\u63a5\u5f71\u97ff\u3057\u307e\u3059\u3002\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001\u30de\u30a4\u30af \u30ab\u30d7\u30bb\u30eb\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u7279\u6027\u3092\u3088\u308a\u3088\u304f\u7406\u89e3\u3067\u304d\u308b\u3088\u3046\u306b\u3001\u4e00\u822c\u7684\u306a\u30c6\u30b9\u30c8\u6761\u4ef6\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">1. \u30c6\u30b9\u30c8\u6761\u4ef6\u306e\u91cd\u8981\u6027<\/h2>\n\n\n\n<p>\u30c6\u30b9\u30c8\u6761\u4ef6\u306f\u3001\u30de\u30a4\u30af\u306e\u6027\u80fd\u3092\u8a55\u4fa1\u3059\u308b\u305f\u3081\u306e\u6a19\u6e96\u5316\u3055\u308c\u305f\u57fa\u6e96\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002\u901a\u5e38\u3001\u30c6\u30b9\u30c8\u6761\u4ef6\u306b\u306f\u8ca0\u8377\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9 (RL) \u3068\u96fb\u6e90\u96fb\u5727 (Vs) \u304c\u542b\u307e\u308c\u3001\u3069\u3061\u3089\u3082\u611f\u5ea6\u3001\u5468\u6ce2\u6570\u5fdc\u7b54\u3001\u4fe1\u53f7\u5bfe\u96d1\u97f3\u6bd4\u306a\u3069\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u306b\u76f4\u63a5\u5f71\u97ff\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">2. \u611f\u5ea6\u30d1\u30e9\u30e1\u30fc\u30bf\u306e\u5206\u6790<\/h2>\n\n\n\n<p>\u5f53\u793e\u306e\u30c6\u30b9\u30c8\u6761\u4ef6\u3067\u306f\u3001\u611f\u5ea6\u306f -70dB \u304b\u3089 -25dB \u306e\u7bc4\u56f2\u3067\u3059\u3002\u611f\u5ea6\u3068\u306f\u3001\u30de\u30a4\u30af\u304c\u97f3\u58f0\u4fe1\u53f7\u306b\u5fdc\u7b54\u3059\u308b\u80fd\u529b\u306e\u3053\u3068\u3067\u3059\u3002\u611f\u5ea6\u304c\u9ad8\u3044\u307b\u3069\u3001\u30de\u30a4\u30af\u306f\u4f4e\u3044\u97f3\u5727\u30ec\u30d9\u30eb\u3067\u3082\u826f\u597d\u306a\u51fa\u529b\u3092\u751f\u6210\u3067\u304d\u307e\u3059\u3002\u4f8b:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>-47\u00b12dB\uff08RL=680\u03a9\u3001Vs=1.5V\uff09<\/strong> \u9332\u97f3\u3084\u653e\u9001\u306a\u3069\u3001\u9ad8\u611f\u5ea6\u304c\u6c42\u3081\u3089\u308c\u308b\u7528\u9014\u306b\u9069\u3057\u3066\u3044\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>-30\u00b12dB\uff08RL=2.2K\u03a9\u3001Vs=2.0V\uff09<\/strong> \u30e9\u30a4\u30d6\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306a\u3069\u306e\u9ad8\u97f3\u5727\u74b0\u5883\u3067\u4f7f\u7528\u3055\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n<\/ul>\n\n\n\n<p>RL \u3068 Vs \u306e\u8a2d\u5b9a\u306b\u3088\u3063\u3066\u611f\u5ea6\u306f\u5927\u304d\u304f\u5909\u308f\u308a\u307e\u3059\u3002\u901a\u5e38\u3001\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u304c\u4f4e\u3044 (\u4f8b: 680\u03a9) \u3068\u3001\u30de\u30a4\u30af\u306f\u3088\u308a\u4f4e\u3044\u96fb\u5727\u3067\u3088\u308a\u5f37\u3044\u4fe1\u53f7\u3092\u9001\u4fe1\u3067\u304d\u308b\u305f\u3081\u3001\u611f\u5ea6\u306e\u9ad8\u3044\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306b\u6700\u9069\u3067\u3059\u3002\u4e00\u65b9\u3001\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u304c\u9ad8\u3044 (\u4f8b: 2.2K\u03a9) \u3068\u3001\u3088\u308a\u9ad8\u3044\u30b5\u30a6\u30f3\u30c9 \u30ec\u30d9\u30eb\u3092\u51e6\u7406\u3067\u304d\u307e\u3059\u304c\u3001\u6700\u9069\u306a\u611f\u5ea6\u3092\u5f97\u308b\u306b\u306f\u3088\u308a\u9ad8\u3044\u96fb\u6e90\u96fb\u5727\u304c\u5fc5\u8981\u306b\u306a\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">3. \u51fa\u529b\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u3068\u96fb\u6e90\u96fb\u5727\u306e\u5f71\u97ff<\/h2>\n\n\n\n<p>\u51fa\u529b\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\uff08RL\uff09\u3068\u96fb\u6e90\u96fb\u5727\uff08Vs\uff09\u306f\u30c6\u30b9\u30c8\u306b\u304a\u3044\u3066\u540c\u69d8\u306b\u91cd\u8981\u3067\u3059\u3002\u305f\u3068\u3048\u3070\u3001 <strong>RL=15K\u03a9<\/strong> \u4f9b\u7d66\u96fb\u5727\u306f <strong>2.0V<\/strong> \u611f\u5ea6\u306f <strong>-36\u00b12dB<\/strong>\u3053\u306e\u7d44\u307f\u5408\u308f\u305b\u306b\u3088\u308a\u3001\u7279\u5b9a\u306e\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u512a\u308c\u305f\u4fe1\u53f7\u5b89\u5b9a\u6027\u3068\u4f4e\u6d88\u8cbb\u96fb\u529b\u3092\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3055\u307e\u3056\u307e\u306a RL \u5024\u3068 Vs \u5024\u3067\u30c6\u30b9\u30c8\u3059\u308b\u3053\u3068\u306f\u91cd\u8981\u3067\u3059\u3002\u3053\u308c\u3089\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u306f\u3001\u30de\u30a4\u30af\u30ed\u30d5\u30a9\u30f3\u304c\u56de\u8def\u5185\u306e\u4ed6\u306e\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3068\u3069\u306e\u3088\u3046\u306b\u76f8\u4e92\u4f5c\u7528\u3059\u308b\u304b\u306b\u5f71\u97ff\u3059\u308b\u304b\u3089\u3067\u3059\u3002RL \u304c\u4f4e\u3044\u307b\u3069\u4fe1\u53f7\u306f\u5f37\u304f\u306a\u308a\u307e\u3059\u304c\u3001\u96fb\u5727\u304c\u5341\u5206\u3067\u306a\u3044\u5834\u5408\u306f\u30ce\u30a4\u30ba\u304c\u767a\u751f\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u9006\u306b\u3001RL \u304c\u9ad8\u3044\u307b\u3069\u30ce\u30a4\u30ba\u6027\u80fd\u306f\u5411\u4e0a\u3057\u307e\u3059\u304c\u3001\u611f\u5ea6\u3092\u7dad\u6301\u3059\u308b\u305f\u3081\u306b\u3088\u308a\u9ad8\u3044\u96fb\u5727\u304c\u5fc5\u8981\u306b\u306a\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">4. \u3055\u307e\u3056\u307e\u306a\u7d44\u307f\u5408\u308f\u305b\u306e\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30b7\u30ca\u30ea\u30aa<\/h2>\n\n\n\n<p>\u3055\u307e\u3056\u307e\u306a\u30c6\u30b9\u30c8\u306e\u7d44\u307f\u5408\u308f\u305b\u304c\u3001\u3055\u307e\u3056\u307e\u306a\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306b\u9069\u3057\u3066\u3044\u307e\u3059\u3002\u4f8b:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u9ad8\u96fb\u6e90\u96fb\u5727\u3067\u9ad8\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9<\/strong>: \u30d7\u30ed\u306e\u9332\u97f3\u6a5f\u5668\u306b\u3088\u304f\u4f7f\u7528\u3055\u308c\u3001\u30af\u30ea\u30a2\u306a\u97f3\u8cea\u3068\u4f4e\u30ce\u30a4\u30ba\u3092\u5b9f\u73fe\u3057\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>\u4f4e\u96fb\u6e90\u96fb\u5727\u3067\u4f4e\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9<\/strong>: \u30b9\u30de\u30fc\u30c8\u30d5\u30a9\u30f3\u3084\u30dd\u30fc\u30bf\u30d6\u30eb\u9332\u753b\u6a5f\u5668\u306a\u3069\u306e\u5bb6\u96fb\u88fd\u54c1\u306b\u9069\u3057\u3066\u3044\u307e\u3059\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u30de\u30a4\u30af \u30ab\u30d7\u30bb\u30eb\u306e\u30c6\u30b9\u30c8\u6761\u4ef6\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u306f\u3001\u30a8\u30f3\u30b8\u30cb\u30a2\u304c\u60c5\u5831\u306b\u57fa\u3065\u3044\u305f\u8a2d\u8a08\u9078\u629e\u3092\u884c\u3046\u306e\u306b\u5f79\u7acb\u3064\u3060\u3051\u3067\u306a\u304f\u3001\u30a8\u30f3\u30c9 \u30e6\u30fc\u30b6\u30fc\u304c\u7279\u5b9a\u306e\u30cb\u30fc\u30ba\u3092\u6e80\u305f\u3059\u88fd\u54c1\u3092\u9078\u629e\u3059\u308b\u306e\u306b\u3082\u5f79\u7acb\u3061\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u30c6\u30b9\u30c8\u6761\u4ef6\u3092\u7fd2\u5f97\u3059\u308b\u3053\u3068\u3067\u3001\u30de\u30a4\u30af\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3068\u3055\u307e\u3056\u307e\u306a\u74b0\u5883\u3067\u306e\u9069\u7528\u6027\u3092\u3088\u308a\u3088\u304f\u7406\u89e3\u3067\u304d\u307e\u3059\u3002<\/p>","protected":false},"excerpt":{"rendered":"<p>In the microphone industry, grasping the test conditions outlined in product specifications is crucial. These conditions not only influence performance assessments but also directly affect how products perform in real-world applications. This article will detail some common test conditions to help you better understand the performance characteristics of microphone capsules. 1. Importance of Test Conditions Test conditions provide a standardized basis for evaluating microphone performance. These typically include load impedance (RL) and supply voltage (Vs), both of which have a direct impact on parameters such as sensitivity, frequency response, and signal-to-noise ratio. 2. Analyzing Sensitivity Parameters In our test conditions, sensitivity ranges from -70dB to -25dB. Sensitivity refers to the [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":2033,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[627,628,626],"class_list":["post-2029","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-technical-insights","tag-anechoic-test","tag-far-field-calibration","tag-test-circuit"],"_links":{"self":[{"href":"https:\/\/ecmicrophones.com\/ja\/wp-json\/wp\/v2\/posts\/2029","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=2029"}],"version-history":[{"count":0,"href":"https:\/\/ecmicrophones.com\/ja\/wp-json\/wp\/v2\/posts\/2029\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ecmicrophones.com\/ja\/wp-json\/wp\/v2\/media\/2033"}],"wp:attachment":[{"href":"https:\/\/ecmicrophones.com\/ja\/wp-json\/wp\/v2\/media?parent=2029"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ecmicrophones.com\/ja\/wp-json\/wp\/v2\/categories?post=2029"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ecmicrophones.com\/ja\/wp-json\/wp\/v2\/tags?post=2029"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}