{"id":284956,"date":"2026-01-26T02:15:22","date_gmt":"2026-01-26T02:15:22","guid":{"rendered":"https:\/\/design.crysound.com\/opentest-e3-83-9e-e3-83-ab-e3-83-81-e3-83-81-e3-83-a3-e3-83-8d-e3-83-ab-iec-61672-1-e9-a8-92-e9-9f-b3-e8-a8-88\/"},"modified":"2026-08-14T04:43:26","modified_gmt":"2026-08-14T04:43:26","slug":"opentest-e3-83-9e-e3-83-ab-e3-83-81-e3-83-81-e3-83-a3-e3-83-8d-e3-83-ab-iec-61672-1-e9-a8-92-e9-9f-b3-e8-a8-88","status":"publish","type":"post","link":"https:\/\/design.crysound.com\/ja\/opentest-e3-83-9e-e3-83-ab-e3-83-81-e3-83-81-e3-83-a3-e3-83-8d-e3-83-ab-iec-61672-1-e9-a8-92-e9-9f-b3-e8-a8-88\/","title":{"rendered":"OpenTest \u30de\u30eb\u30c1\u30c1\u30e3\u30cd\u30eb IEC 61672-1 \u9a12\u97f3\u8a08"},"content":{"rendered":"\n<p>\u672c\u8a18\u4e8b\u3067\u306f\u3001OpenTest \u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u4e0a\u3067\u958b\u767a\u3055\u308c\u3001IEC 61672-1 \u306e\u6280\u8853\u8981\u4ef6\u3092\u6e80\u305f\u3059\u3088\u3046\u8a2d\u8a08\u3055\u308c\u305f\u30de\u30eb\u30c1\u30c1\u30e3\u30cd\u30eb\u9a12\u97f3\u8a08\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3\u3092\u7d39\u4ecb\u3057\u307e\u3059.<\/p>\n\n<p>SonoDAQ \u30c7\u30fc\u30bf\u53ce\u96c6\u30b7\u30b9\u30c6\u30e0\u3068\u8a08\u6e2c\u30b0\u30ec\u30fc\u30c9\u306e\u30de\u30a4\u30af\u30ed\u30db\u30f3\u3092\u7d71\u5408\u3059\u308b\u3053\u3068\u3067\u3001\u672c\u30b7\u30b9\u30c6\u30e0\u306f\u6a19\u6e96\u7684\u306a A\/C\/Z \u5468\u6ce2\u6570\u7279\u6027\u3001F\/S\/I \u6642\u9593\u7279\u6027\u3092\u5b9f\u88c5\u3057\u3001Lp\u3001Leq\u3001Ln \u306a\u3069\u306e\u6a19\u6e96\u7684\u306a\u97f3\u97ff\u91cf\u3092\u9ad8\u7cbe\u5ea6\u306b\u6e2c\u5b9a\u3067\u304d\u307e\u3059.<\/p>\n\n<p>\u672c\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3\u306f\u3001\u74b0\u5883\u9a12\u97f3\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u3001\u88fd\u54c1\u9a12\u97f3\u8a66\u9a13\u3001\u81ea\u52d5\u8eca NVH \u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306a\u3069\u3001\u5e45\u5e83\u3044\u30b7\u30ca\u30ea\u30aa\u306b\u9069\u7528\u3067\u304d\u307e\u3059.<\/p>\n\n<h2 class=\"wp-block-heading\"><strong>\u30cf\u30f3\u30c9\u30d8\u30eb\u30c9\u9a12\u97f3\u8a08\u304b\u3089\u30de\u30eb\u30c1\u30c1\u30e3\u30cd\u30eb\u9a12\u97f3\u30ec\u30d9\u30eb\u6e2c\u5b9a\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u3078<\/strong><\/h2>\n\n<p>\u97f3\u97ff\u304a\u3088\u3073\u632f\u52d5\u8a66\u9a13\u3067\u306f\u3001\u307b\u307c\u3059\u3079\u3066\u306e\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067\u57fa\u672c\u7684\u306a\u554f\u3044\u304c\u7e70\u308a\u8fd4\u3057\u73fe\u308c\u307e\u3059.<strong>\u300c\u3069\u306e\u304f\u3089\u3044\u3046\u308b\u3055\u3044\u306e\u304b?\u300d<\/strong><\/p>\n\n<p>\u30aa\u30d5\u30a3\u30b9\u6a5f\u5668\u3084\u5bb6\u5ead\u7528\u96fb\u5316\u88fd\u54c1\u304b\u3089\u81ea\u52d5\u8eca NVH\u3001\u7523\u696d\u6a5f\u68b0\u306b\u81f3\u308b\u307e\u3067\u3001\u5404\u7a2e\u898f\u5236\u3001\u898f\u683c\u3001\u793e\u5185\u54c1\u8cea\u57fa\u6e96\u306f\u3059\u3079\u3066\u3001<strong>\u97f3\u5727\u30ec\u30d9\u30eb(SPL)<\/strong>\u306e\u5b9a\u91cf\u7684\u306a\u8a55\u4fa1\u306b\u4f9d\u62e0\u3057\u3066\u3044\u307e\u3059.<\/p>\n\n<p>\u5f93\u6765\u306f\u3001<strong>IEC 61672 \u306b\u6e96\u62e0\u3057\u305f\u30cf\u30f3\u30c9\u30d8\u30eb\u30c9\u9a12\u97f3\u8a08<\/strong>\u3092\u6240\u5b9a\u306e\u4f4d\u7f6e\u306b\u8a2d\u7f6e\u3057\u3001\u9069\u5408\u6027\u78ba\u8a8d\u3084\u54c1\u8cea\u691c\u8a3c\u306e\u305f\u3081\u306b<strong>A \u7279\u6027\u97f3\u5727\u30ec\u30d9\u30eb<\/strong>\u3092\u8aad\u307f\u53d6\u308b\u65b9\u6cd5\u304c\u4e00\u822c\u7684\u3067\u3057\u305f.<\/p>\n\n<p>IEC 61672 \u306f\u3001\u9a12\u97f3\u8a08\u306b\u5bfe\u3059\u308b<strong>\u5468\u6ce2\u6570\u7279\u6027<\/strong>\u3001<strong>\u6642\u9593\u7279\u6027<\/strong>\u3001<strong>\u76f4\u7dda\u6027<\/strong>\u3001<strong>\u81ea\u5df1\u96d1\u97f3<\/strong>\u304a\u3088\u3073<strong>\u30c0\u30a4\u30ca\u30df\u30c3\u30af\u30ec\u30f3\u30b8<\/strong>\u306e\u8a73\u7d30\u306a\u8981\u4ef6\u3092\u5b9a\u3081\u308b\u3068\u3068\u3082\u306b\u3001\u6a5f\u5668\u3092<strong>\u30af\u30e9\u30b9 1<\/strong>\u304a\u3088\u3073<strong>\u30af\u30e9\u30b9 2<\/strong>\u306b\u5206\u985e\u3057\u3066\u3044\u307e\u3059.\u4e2d\u3067\u3082<strong>\u30af\u30e9\u30b9 1<\/strong>\u306f\u8981\u4ef6\u304c\u3088\u308a\u53b3\u3057\u304f\u3001\u5b9f\u9a13\u5ba4\u7528\u9014\u3084\u578b\u5f0f\u627f\u8a8d\u8a66\u9a13\u306b\u9069\u3057\u3066\u3044\u307e\u3059.<\/p>\n\n<p>\u88fd\u54c1\u69cb\u9020\u3084\u8a66\u9a13\u8981\u4ef6\u304c\u9032\u5316\u3059\u308b\u306b\u3064\u308c\u3001\u30a8\u30f3\u30b8\u30cb\u30a2\u306f\u5358\u4e00\u306e\u30cf\u30f3\u30c9\u30d8\u30eb\u30c9\u30e1\u30fc\u30bf\u304c\u63d0\u4f9b\u3067\u304d\u308b\u6a5f\u80fd\u4ee5\u4e0a\u306e\u3082\u306e\u3092\u6c42\u3081\u308b\u3088\u3046\u306b\u306a\u3063\u3066\u3044\u307e\u3059:<\/p>\n\n<ul class=\"wp-block-list\">\n<li>\u8907\u6570\u306e\u4f4d\u7f6e\u3092\u540c\u6642\u306b\u6e2c\u5b9a\u3057\u3001\u4f4d\u7f6e\u3084\u52d5\u4f5c\u70b9\u306e\u9055\u3044\u3092\u6bd4\u8f03\u3057\u305f\u3044<\/li>\n\n\n\n<li>\u9a12\u97f3\u30ec\u30d9\u30eb\u30c7\u30fc\u30bf\u3068<strong>\u30b9\u30da\u30af\u30c8\u30eb\u3084\u30aa\u30af\u30bf\u30fc\u30d6\u30d0\u30f3\u30c9\u89e3\u6790<\/strong>\u3092\u7d44\u307f\u5408\u308f\u305b\u3001\u554f\u984c\u3068\u306a\u308b\u5468\u6ce2\u6570\u9818\u57df\u3092\u7d20\u65e9\u304f\u7279\u5b9a\u3057\u305f\u3044<\/li>\n\n\n\n<li>NVH \u8a3a\u65ad\u306e\u305f\u3081\u306b\u3001\u9a12\u97f3\u30ec\u30d9\u30eb\u6e2c\u5b9a\u3092<strong>\u56de\u8ee2\u901f\u5ea6\u3001\u632f\u52d5\u3001\u6e29\u5ea6<\/strong>\u306a\u3069\u4ed6\u306e\u7269\u7406\u91cf\u3068\u540c\u671f\u3055\u305b\u305f\u3044<\/li>\n\n\n\n<li>\u9a12\u97f3\u30ec\u30d9\u30eb\u6e2c\u5b9a\u3092\u3001\u624b\u4f5c\u696d\u306b\u3088\u308b\u30b9\u30dd\u30c3\u30c8\u30c1\u30a7\u30c3\u30af\u3067\u306f\u306a\u304f\u3001<strong>\u81ea\u52d5\u5316\u3055\u308c\u305f\u30d0\u30c3\u30c1\u8a66\u9a13\u30ef\u30fc\u30af\u30d5\u30ed\u30fc<\/strong>\u306b\u7d71\u5408\u3057\u305f\u3044<\/li>\n<\/ul>\n\n<p>\u3053\u3046\u3057\u305f\u8981\u6c42\u304b\u3089\u3001<strong>\u30de\u30eb\u30c1\u30c1\u30e3\u30cd\u30eb\u9a12\u97f3\u8a08<\/strong>\u3078\u306e\u30cb\u30fc\u30ba\u304c\u751f\u307e\u308c\u307e\u3057\u305f.\u3059\u306a\u308f\u3061\u3001<strong>IEC 61672-1 \u30af\u30e9\u30b9 1<\/strong>\u306e\u7cbe\u5ea6\u8981\u4ef6\u3092\u6e80\u305f\u3059\u3060\u3051\u3067\u306a\u304f\u3001<strong>\u30de\u30eb\u30c1\u30c1\u30e3\u30cd\u30eb\u6027\u3001\u30b9\u30b1\u30fc\u30e9\u30d3\u30ea\u30c6\u30a3\u3001\u81ea\u52d5\u5316<\/strong>\u3092\u63d0\u4f9b\u3059\u308b\u30b7\u30b9\u30c6\u30e0\u3067\u3059.<\/p>\n\n<p><strong>OpenTest<\/strong>\u306f\u3001<strong>CRYSOUND<\/strong>\u304c\u958b\u767a\u3057\u305f\u65b0\u4e16\u4ee3\u306e\u97f3\u97ff\u30fb\u632f\u52d5\u8a66\u9a13\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u3067\u3059. \u5c02\u7528\u306e<strong>\u9a12\u97f3\u30ec\u30d9\u30eb\u6e2c\u5b9a\u30e2\u30b8\u30e5\u30fc\u30eb<\/strong>\u3068<strong>CRY5820 SonoDAQ Pro<\/strong> \u30d5\u30ed\u30f3\u30c8\u30a8\u30f3\u30c9\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u304a\u3088\u3073\u8a08\u6e2c\u7528\u30de\u30a4\u30af\u30ed\u30db\u30f3\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001<strong>\u30af\u30e9\u30b9 1 \u9a12\u97f3\u8a08\u3068\u540c\u7b49\u306e\u30de\u30eb\u30c1\u30c1\u30e3\u30cd\u30eb\u9a12\u97f3\u30ec\u30d9\u30eb\u6e2c\u5b9a<\/strong>\u3092\u5b9f\u73fe\u3057\u307e\u3059.<\/p>\n\n<figure class=\"wp-block-image size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"777\" src=\"https:\/\/design.crysound.com\/wp-content\/uploads\/2026\/01\/image-1-1024x777.png\" alt=\"\" class=\"wp-image-273350\" srcset=\"https:\/\/design.crysound.com\/wp-content\/uploads\/2026\/01\/image-1-1024x777.png 1024w, https:\/\/design.crysound.com\/wp-content\/uploads\/2026\/01\/image-1-300x228.png 300w, https:\/\/design.crysound.com\/wp-content\/uploads\/2026\/01\/image-1-768x582.png 768w, https:\/\/design.crysound.com\/wp-content\/uploads\/2026\/01\/image-1-73x55.png 73w, https:\/\/design.crysound.com\/wp-content\/uploads\/2026\/01\/image-1-1536x1165.png 1536w, https:\/\/design.crysound.com\/wp-content\/uploads\/2026\/01\/image-1-2048x1553.png 2048w, https:\/\/design.crysound.com\/wp-content\/uploads\/2026\/01\/image-1-600x455.png 600w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n<p class=\"has-text-align-left\"><em>\u56f3 1. \u30cf\u30f3\u30c9\u30d8\u30eb\u30c9\u9a12\u97f3\u8a08\u304b\u3089\u30de\u30eb\u30c1\u30c1\u30e3\u30cd\u30eb\u9a12\u97f3\u30ec\u30d9\u30eb\u6e2c\u5b9a\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u3078<\/em><\/p>\n\n<h2 class=\"wp-block-heading\"><strong>IEC 61672:\u5b9f\u969b\u306b\u306f\u4f55\u3092\u6e2c\u5b9a\u3057\u3066\u3044\u308b\u306e\u304b?<\/strong><\/h2>\n\n<h3 class=\"wp-block-heading\"><strong>\u97f3\u5727\u30ec\u30d9\u30eb(Lp)\u306e\u610f\u5473<\/strong><\/h3>\n\n<p><strong>\u97f3\u5727\u30ec\u30d9\u30eb(SPL)<\/strong>\u306f\u3001\u5b9f\u52b9\u5024\u97f3\u5727 prms \u3092\u57fa\u6e96\u97f3\u5727 p0\u3001\u3059\u306a\u308f\u3061<strong>\u7a7a\u6c17\u4e2d\u306e 20 \u03bcPa<\/strong>\u306b\u5bfe\u3057\u3066\u5bfe\u6570\u30b9\u30b1\u30fc\u30eb\u3067\u8868\u3057\u305f\u91cf\u3067\u3042\u308a\u3001\u6b21\u306e\u3088\u3046\u306b\u5b9a\u7fa9\u3055\u308c\u307e\u3059:<\/p>\n\n<figure class=\"wp-block-image size-full is-resized\"><img decoding=\"async\" src=\"https:\/\/design.crysound.com\/wp-content\/uploads\/2026\/01\/image-8.webp\" alt=\"\" class=\"wp-image-265165\" style=\"width:214px;height:auto\"\/><\/figure>\n\n<p>prms\u200b=1 Pa \u306e\u3068\u304d\u3001SPL \u306f\u304a\u3088\u305d <strong>94 dB<\/strong> \u3068\u306a\u308a\u307e\u3059.\u3053\u306e\u305f\u3081\u3001<strong>94 dB \/ 1 kHz<\/strong> \u304c\u97f3\u97ff\u6821\u6b63\u5668\u306e\u57fa\u6e96\u30ec\u30d9\u30eb\u3068\u3057\u3066\u4e00\u822c\u7684\u306b\u7528\u3044\u3089\u308c\u3066\u3044\u307e\u3059.<\/p>\n\n<h3 class=\"wp-block-heading\"><strong>\u5468\u6ce2\u6570\u7279\u6027:A \/ C \/ Z<\/strong><\/h3>\n\n<p>\u4eba\u9593\u306e\u8074\u899a\u611f\u5ea6\u306f\u5468\u6ce2\u6570\u306b\u3088\u3063\u3066\u7570\u306a\u308a\u307e\u3059. IEC 61672 \u3067\u306f\u3001\u3059\u3079\u3066\u306e\u9a12\u97f3\u8a08\u304c<strong>A \u7279\u6027<\/strong>\u306b\u5bfe\u5fdc\u3059\u308b\u3053\u3068\u304c\u6c42\u3081\u3089\u308c\u3001\u3055\u3089\u306b<strong>\u30af\u30e9\u30b9 1<\/strong>\u6a5f\u5668\u306f<strong>C \u7279\u6027<\/strong>\u306b\u3082\u5bfe\u5fdc\u3057\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093.<strong>Z \u7279\u6027<\/strong>(Zero weighting\u3001\u3059\u306a\u308f\u3061\u30d5\u30e9\u30c3\u30c8\u5fdc\u7b54)\u306f\u4efb\u610f\u3067\u3059.<\/p>\n\n<ul class=\"wp-block-list\">\n<li><strong>A \u7279\u6027(dB(A))<\/strong><br\/>40 \u30d5\u30a9\u30f3\u7b49\u30e9\u30a6\u30c9\u30cd\u30b9\u66f2\u7dda\u306b\u57fa\u3065\u304d\u3001\u4f4e\u5468\u6ce2\u6570\u304a\u3088\u3073\u975e\u5e38\u306b\u9ad8\u3044\u5468\u6ce2\u6570\u3067\u5927\u304d\u306a\u6e1b\u8870\u3092\u6301\u3061\u307e\u3059. \u77e5\u899a\u3055\u308c\u308b\u5927\u304d\u3055\u3068\u76f8\u95a2\u306e\u3042\u308b\u6307\u6a19\u3068\u3057\u3066\u3001\u5404\u7a2e\u898f\u5236\u3084\u898f\u683c\u3067\u5e83\u304f\u7528\u3044\u3089\u308c\u3066\u3044\u307e\u3059.<\/li>\n\n\n\n<li><strong>C \u7279\u6027(dB(C))<\/strong><br\/>A \u7279\u6027\u3088\u308a\u3082\u5fdc\u7b54\u304c\u5e73\u5766\u3067\u3001\u4f4e\u5468\u6ce2\u6570\u306e\u6e1b\u8870\u304c\u5c0f\u3055\u3044\u306e\u304c\u7279\u5fb4\u3067\u3059. <strong>\u30d4\u30fc\u30af\u30ec\u30d9\u30eb<\/strong>\u3001\u6a5f\u68b0\u9a12\u97f3\u3001\u30ec\u30d9\u30eb\u306e\u9ad8\u3044\u4e8b\u8c61\u306e\u8a55\u4fa1\u306b\u9069\u3057\u3066\u3044\u307e\u3059.<\/li>\n\n\n\n<li><strong>Z \u7279\u6027(dB(Z))<\/strong><br\/>\u898f\u5b9a\u3055\u308c\u305f\u5e2f\u57df\u5185\u3067\u307b\u307c\u30d5\u30e9\u30c3\u30c8\u306a\u5fdc\u7b54\u3092\u6301\u3061\u3001\u5143\u306e\u30b9\u30da\u30af\u30c8\u30eb\u30a8\u30cd\u30eb\u30ae\u30fc\u5206\u5e03\u3092\u4fdd\u6301\u3059\u308b\u305f\u3081\u3001\u8a73\u7d30\u89e3\u6790\u306b\u6709\u7528\u3067\u3059.<\/li>\n<\/ul>\n\n<p>A \u7279\u6027\u306f\u591a\u304f\u306e\u898f\u5236\u3067\u4e3b\u6d41\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u304c\u3001\u5b8c\u5168\u306a\u8074\u611f\u30e2\u30c7\u30eb\u3068\u3044\u3046\u308f\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093. \u5f37\u3044\u4f4e\u5468\u6ce2\u6210\u5206\u3084\u5909\u8abf\u6210\u5206\u3001\u30c8\u30fc\u30ca\u30eb\u6210\u5206\u3092\u542b\u3080\u5834\u5408\u3001A \u7279\u6027\u30ec\u30d9\u30eb\u306f\u77e5\u899a\u3055\u308c\u308b\u4e0d\u5feb\u611f\u3092\u904e\u5c0f\u8a55\u4fa1\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059.<br\/>\u305d\u306e\u305f\u3081\u3001\u8a2d\u8a08\u304a\u3088\u3073\u8a3a\u65ad\u7528\u9014\u3067\u306f\u3001<strong>C\/Z \u7279\u6027\u3001\u30aa\u30af\u30bf\u30fc\u30d6\u30d0\u30f3\u30c9\u30b9\u30da\u30af\u30c8\u30eb\u3001\u30b5\u30a6\u30f3\u30c9\u30af\u30aa\u30ea\u30c6\u30a3\u6307\u6a19<\/strong>\u3092\u7d44\u307f\u5408\u308f\u305b\u3066\u7528\u3044\u308b\u3053\u3068\u304c\u63a8\u5968\u3055\u308c\u307e\u3059.<\/p>\n\n<h3 class=\"wp-block-heading\"><strong>\u6642\u9593\u7279\u6027:Fast \/ Slow \/ Impulse<\/strong><\/h3>\n\n<p>IEC 61672 \u3067\u306f\u3001\u6b21\u306e\u6642\u9593\u7279\u6027\u304c\u5b9a\u7fa9\u3055\u308c\u3066\u3044\u307e\u3059:<\/p>\n\n<ul class=\"wp-block-list\">\n<li><strong>F(Fast)<\/strong>:\u6642\u5b9a\u6570 \u2248 125 ms\u3001\u6025\u6fc0\u306b\u5909\u52d5\u3059\u308b\u9a12\u97f3\u30ec\u30d9\u30eb\u306e\u6e2c\u5b9a\u306b\u9069\u3057\u3066\u3044\u307e\u3059<\/li>\n\n\n\n<li><strong>S(Slow)<\/strong>:\u6642\u5b9a\u6570 \u2248 1 s\u3001\u5168\u4f53\u7684\u306a\u50be\u5411\u3092\u89b3\u5bdf\u3059\u308b\u306e\u306b\u9069\u3057\u3066\u3044\u307e\u3059<\/li>\n\n\n\n<li><strong>I(Impulse)<\/strong>:\u30a4\u30f3\u30d1\u30eb\u30b9\u6027\u4fe1\u53f7\u5411\u3051\u306b\u8a2d\u8a08\u3055\u308c\u3066\u304a\u308a\u3001\u77ed\u6642\u9593\u306e\u30d4\u30fc\u30af\u306b\u5bfe\u3057\u3066\u611f\u5ea6\u304c\u9ad8\u304f\u306a\u308a\u307e\u3059<\/li>\n<\/ul>\n\n<p>\u4e00\u822c\u7684\u306a\u9a12\u97f3\u30ec\u30d9\u30eb\u6307\u6a19\u306b\u306f\u6b21\u306e\u3082\u306e\u304c\u3042\u308a\u307e\u3059:<\/p>\n\n<ul class=\"wp-block-list\">\n<li><strong>LAF \/ LAS \/ LAI<\/strong>:Fast \/ Slow \/ Impulse \u306e\u6642\u9593\u7279\u6027\u3092\u7528\u3044\u305f A \u7279\u6027\u9a12\u97f3\u30ec\u30d9\u30eb<\/li>\n\n\n\n<li><strong>LCpeak<\/strong>:C \u7279\u6027\u30d4\u30fc\u30af\u9a12\u97f3\u30ec\u30d9\u30eb<\/li>\n<\/ul>\n\n<h3 class=\"wp-block-heading\"><strong>\u30a8\u30cd\u30eb\u30ae\u30fc\u30d9\u30fc\u30b9\u304a\u3088\u3073\u7d71\u8a08\u91cf:Leq\u3001SEL\u3001Ln<\/strong><\/h3>\n\n<p>IEC 61672 \u3067\u306f\u3001\u6b21\u306e\u3088\u3046\u306a\u4e00\u822c\u7684\u306a\u97f3\u97ff\u91cf\u3082\u5b9a\u7fa9\u3055\u308c\u3066\u3044\u307e\u3059:<\/p>\n\n<ul class=\"wp-block-list\">\n<li><strong>Leq,T \/ LAeq,T(\u7b49\u4fa1\u9a12\u97f3\u30ec\u30d9\u30eb)<\/strong><br\/>\u6642\u9593\u533a\u9593 T \u306b\u304a\u3051\u308b\u7b49\u4fa1\u9023\u7d9a\u9a12\u97f3\u30ec\u30d9\u30eb\u3067\u3042\u308a\u3001\u74b0\u5883\u9a12\u97f3\u8a55\u4fa1\u3084\u88fd\u54c1\u9a12\u97f3\u8a55\u4fa1\u3067\u5e83\u304f\u7528\u3044\u3089\u308c\u307e\u3059.<\/li>\n\n\n\n<li><strong>\u97f3\u97ff\u66b4\u9732\u91cf\u304a\u3088\u3073\u97f3\u97ff\u66b4\u9732\u30ec\u30d9\u30eb:E\u3001LE \/ LAE(SEL)<\/strong><br\/>\u3042\u308b\u4e8b\u8c61\u306e\u7dcf\u97f3\u97ff\u30a8\u30cd\u30eb\u30ae\u30fc\u3092\u8868\u3057\u3001\u822a\u7a7a\u6a5f\u9a12\u97f3\u3001\u4ea4\u901a\u9a12\u97f3\u3001\u5358\u4e00\u4e8b\u8c61\u9a12\u97f3\u306e\u8a55\u4fa1\u306b\u4e00\u822c\u7684\u306b\u7528\u3044\u3089\u308c\u307e\u3059.<\/li>\n\n\n\n<li><strong>Lmax \/ Lmin<\/strong>:\u6307\u5b9a\u3057\u305f\u6642\u9593\u7279\u6027\u306e\u4e0b\u3067\u306e\u6700\u5927\u304a\u3088\u3073\u6700\u5c0f\u9a12\u97f3\u30ec\u30d9\u30eb<\/li>\n\n\n\n<li><strong>Lpeak(\u901a\u5e38\u306f LCpeak)<\/strong>:\u30d4\u30fc\u30af\u97f3\u5727\u306b\u57fa\u3065\u304f\u30d4\u30fc\u30af\u9a12\u97f3\u30ec\u30d9\u30eb<\/li>\n\n\n\n<li><strong>\u7d71\u8a08\u30ec\u30d9\u30eb Ln(L10\u3001L50\u3001L90 \u306a\u3069)<\/strong><br\/>\u6e2c\u5b9a\u6642\u9593\u306e n% \u3092\u8d85\u3048\u3066\u3044\u308b\u30ec\u30d9\u30eb\u3092\u793a\u3057\u3001\u74b0\u5883\u9a12\u97f3\u89e3\u6790\u3067\u4e00\u822c\u7684\u306b\u7528\u3044\u3089\u308c\u307e\u3059.<\/li>\n<\/ul>\n\n<h3 class=\"wp-block-heading\"><strong>\u30d0\u30f3\u30c9\u30ec\u30d9\u30eb:\u30aa\u30af\u30bf\u30fc\u30d6\u304a\u3088\u3073 1\/3 \u30aa\u30af\u30bf\u30fc\u30d6\u30d0\u30f3\u30c9<\/strong><\/h3>\n\n<p>\u30aa\u30af\u30bf\u30fc\u30d6\u30d0\u30f3\u30c9\u30d5\u30a3\u30eb\u30bf\u306f\u672c\u6765<strong>IEC 61260<\/strong>\u3067\u898f\u5b9a\u3055\u308c\u3066\u3044\u307e\u3059\u304c\u3001IEC 61672 \u3082\u5468\u6ce2\u6570\u5fdc\u7b54\u304a\u3088\u3073\u6a19\u6e96\u4e2d\u5fc3\u5468\u6ce2\u6570\u306e\u70b9\u3067\u3053\u308c\u3068\u6574\u5408\u3057\u3066\u3044\u307e\u3059. \u4e00\u822c\u7684\u306a\u89e3\u6790\u306b\u306f\u6b21\u306e\u3082\u306e\u304c\u3042\u308a\u307e\u3059:<\/p>\n\n<ul class=\"wp-block-list\">\n<li><strong>1 \u30aa\u30af\u30bf\u30fc\u30d6\u30d0\u30f3\u30c9\u30ec\u30d9\u30eb<\/strong>(\u4f8b:31.5 Hz\uff5e16 kHz)<\/li>\n\n\n\n<li><strong>1\/3 \u30aa\u30af\u30bf\u30fc\u30d6\u30d0\u30f3\u30c9\u30ec\u30d9\u30eb<\/strong>\u3001\u3088\u308a\u7d30\u304b\u3044\u5468\u6ce2\u6570\u5206\u89e3\u80fd\u306b\u3088\u308a\u3001\u30ca\u30ed\u30fc\u30d0\u30f3\u30c9\u9a12\u97f3\u3084\u69cb\u9020\u5171\u632f\u306e\u7279\u5b9a\u306b\u6709\u52b9\u3067\u3059<\/li>\n<\/ul>\n\n<p>\u3053\u308c\u3089\u306e\u91cf\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u77ac\u6642\u5024\u304b\u3089\u6642\u9593\u5e73\u5747\u5024\u3001\u5e83\u5e2f\u57df\u30ec\u30d9\u30eb\u304b\u3089\u5468\u6ce2\u6570\u5206\u89e3\u89e3\u6790\u307e\u3067\u3001\u9a12\u97f3\u30ec\u30d9\u30eb\u6e2c\u5b9a\u306e\u5168\u4f53\u50cf\u304c\u5b9a\u7fa9\u3055\u308c\u307e\u3059.<\/p>\n\n<h2 class=\"wp-block-heading\"><strong>OpenTest \u306b\u3088\u308b\u9a12\u97f3\u30ec\u30d9\u30eb\u6e2c\u5b9a<\/strong><\/h2>\n\n<h3 class=\"wp-block-heading\"><strong>\u30bb\u30c3\u30c8\u30a2\u30c3\u30d7:\u97f3\u6e90\u304b\u3089\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u307e\u3067\u306e\u4fe1\u53f7\u30c1\u30a7\u30fc\u30f3\u69cb\u7bc9<\/strong><\/h3>\n\n<h4 class=\"wp-block-heading\"><strong>\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u6e96\u5099<\/strong><\/h4>\n\n<ul class=\"wp-block-list\">\n<li><strong>\u30c7\u30fc\u30bf\u53ce\u96c6\u30d5\u30ed\u30f3\u30c8\u30a8\u30f3\u30c9<\/strong><br\/>\u4f8b\u3048\u3070\u3001<strong>CRY5820 SonoDAQ Pro<\/strong> \u306f\u30e2\u30b8\u30e5\u30e9\u30fc\u5f0f\u30de\u30eb\u30c1\u30c1\u30e3\u30cd\u30eb\u30c7\u30fc\u30bf\u53ce\u96c6\u30b7\u30b9\u30c6\u30e0\u3067\u3001\u30e6\u30cb\u30c3\u30c8\u3042\u305f\u308a 4\uff5e24 \u30c1\u30e3\u30cd\u30eb\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u3001\u6570\u5343\u30c1\u30e3\u30cd\u30eb\u307e\u3067\u62e1\u5f35\u53ef\u80fd\u3067\u3059. <strong>32 \u30d3\u30c3\u30c8 ADC<\/strong>\u3001\u6700\u5927<strong>170 dB \u306e\u30c0\u30a4\u30ca\u30df\u30c3\u30af\u30ec\u30f3\u30b8<\/strong>\u3001<strong>1000 V \u30c1\u30e3\u30cd\u30eb\u9593\u7d76\u7e01<\/strong>\u3001<strong>\u2264100 ns \u306e PTP\/GPS \u540c\u671f\u7cbe\u5ea6<\/strong>\u3092\u5099\u3048\u3001\u5b9f\u9a13\u5ba4\u304a\u3088\u3073\u30d5\u30a3\u30fc\u30eb\u30c9\u3067\u306e\u97f3\u97ff\u30fb\u632f\u52d5\u8a66\u9a13\u306e\u53cc\u65b9\u306b\u9069\u3057\u3066\u3044\u307e\u3059.<\/li>\n\n\n\n<li><strong>\u30bb\u30f3\u30b5\u30fc<\/strong><br\/>\u4ee3\u8868\u7684\u306a\u6e2c\u5b9a\u4f4d\u7f6e\u307e\u305f\u306f\u30ea\u30b9\u30cb\u30f3\u30b0\u4f4d\u7f6e\u306b\u914d\u7f6e\u3057\u305f\u3001\u8907\u6570\u672c\u306e<strong>\u8a08\u6e2c\u30b0\u30ec\u30fc\u30c9\u30de\u30a4\u30af\u30ed\u30db\u30f3\u30bb\u30c3\u30c8<\/strong>(\u30d7\u30ea\u30a2\u30f3\u30d7\u4ed8\u304d).<\/li>\n\n\n\n<li><strong>\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u304a\u3088\u3073\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2<\/strong><br\/><strong>OpenTest<\/strong> \u304c\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3055\u308c\u3001<strong>\u9a12\u97f3\u30ec\u30d9\u30eb\u6e2c\u5b9a\u30e2\u30b8\u30e5\u30fc\u30eb\u306e\u30e9\u30a4\u30bb\u30f3\u30b9<\/strong>\u304c\u6709\u52b9\u306b\u306a\u3063\u3066\u3044\u308b PC.<\/li>\n<\/ul>\n\n<h4 class=\"wp-block-heading\"><strong>OpenTest \u306b\u304a\u3051\u308b\u30c7\u30d0\u30a4\u30b9\u3068\u30c1\u30e3\u30cd\u30eb\u306e\u63a5\u7d9a<\/strong><\/h4>\n\n<ol class=\"wp-block-list\">\n<li>OpenTest \u3092\u8d77\u52d5\u3057\u3001\u65b0\u898f\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3092\u4f5c\u6210\u3057\u307e\u3059.<\/li>\n\n\n\n<li><em>Hardware Settings<\/em>(\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u8a2d\u5b9a)\u3067\u300c+\u300d\u3092\u30af\u30ea\u30c3\u30af\u3059\u308b\u3068\u3001openDAQ \u3084 ASIO \u7d4c\u7531\u3067\u63a5\u7d9a\u3055\u308c\u305f\u3082\u306e\u3092\u542b\u3080\u5229\u7528\u53ef\u80fd\u306a\u30c7\u30d0\u30a4\u30b9\u304c\u81ea\u52d5\u691c\u51fa\u3055\u308c\u307e\u3059.<\/li>\n\n\n\n<li>\u5fc5\u8981\u306a\u53ce\u96c6\u30c7\u30d0\u30a4\u30b9(\u4f8b:SonoDAQ)\u3092\u9078\u629e\u3057\u3001\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306b\u8ffd\u52a0\u3057\u307e\u3059.<\/li>\n\n\n\n<li><em>Channel Settings<\/em> \u3067\u30de\u30a4\u30af\u30ed\u30db\u30f3\u30c1\u30e3\u30cd\u30eb\u3092\u8ffd\u52a0\u3057\u3001\u30b5\u30f3\u30d7\u30ea\u30f3\u30b0\u30ec\u30fc\u30c8\u3068\u5165\u529b\u30ec\u30f3\u30b8\u3092\u8a2d\u5b9a\u3057\u307e\u3059.<\/li>\n<\/ol>\n\n<p>\u3053\u306e\u6642\u70b9\u3067\u3001<strong>\u97f3\u6e90 \u2192 \u30de\u30a4\u30af\u30ed\u30db\u30f3 \u2192 DAQ \u2192 OpenTest<\/strong> \u3068\u3044\u3046\u4fe1\u53f7\u30c1\u30a7\u30fc\u30f3\u304c\u5b8c\u5168\u306b\u78ba\u7acb\u3055\u308c\u307e\u3059.<\/p>\n\n<h3 class=\"wp-block-heading\"><strong>\u6821\u6b63:\u97f3\u97ff\u30ea\u30d5\u30a1\u30ec\u30f3\u30b9\u306e\u8a2d\u5b9a<\/strong><\/h3>\n\n<p>\u7d76\u5bfe\u7cbe\u5ea6\u3092\u78ba\u4fdd\u3059\u308b\u305f\u3081\u306b\u306f\u3001\u5404\u30c1\u30e3\u30cd\u30eb\u3092<strong>\u30af\u30e9\u30b9 1 \u97f3\u97ff\u6821\u6b63\u5668<\/strong>\u3067\u6821\u6b63\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059.<\/p>\n\n<ol class=\"wp-block-list\">\n<li>OpenTest \u3067<em>Calibration<\/em> \u30c0\u30a4\u30a2\u30ed\u30b0\u3092\u958b\u304d\u307e\u3059.<\/li>\n\n\n\n<li>\u6821\u6b63\u3059\u308b\u30de\u30a4\u30af\u30ed\u30db\u30f3\u30c1\u30e3\u30cd\u30eb\u3092\u9078\u629e\u3057\u307e\u3059.<\/li>\n\n\n\n<li>\u30de\u30a4\u30af\u30ed\u30db\u30f3\u306b\u6821\u6b63\u5668\u3092\u88c5\u7740\u3057\u3001\u6821\u6b63\u3092\u958b\u59cb\u3057\u307e\u3059.<\/li>\n\n\n\n<li>\u6307\u793a\u5024\u304c\u5b89\u5b9a\u3057\u305f\u3089\u3001\u6821\u6b63\u3092\u5b8c\u4e86\u3057\u307e\u3059.<\/li>\n<\/ol>\n\n<p>OpenTest \u306f\u30c1\u30e3\u30cd\u30eb\u611f\u5ea6\u3092\u81ea\u52d5\u7684\u306b\u66f4\u65b0\u3057\u3001<strong>94 dB SPL \u306e\u57fa\u6e96\u70b9<\/strong>\u306b\u5408\u308f\u305b\u8fbc\u307f\u307e\u3059.<\/p>\n\n<p>\u6bd4\u8f03\u8a66\u9a13\u3092\u884c\u3046\u5834\u5408\u306f\u3001\u30cf\u30f3\u30c9\u30d8\u30eb\u30c9\u9a12\u97f3\u8a08(\u4f8b:<strong>CRY2851<\/strong>)\u3082\u540c\u3058\u6821\u6b63\u5668(\u4f8b:<strong>CRY3018<\/strong>)\u3067\u6821\u6b63\u3059\u308b\u3053\u3068\u3067\u3001\u4e21\u30b7\u30b9\u30c6\u30e0\u304c\u540c\u4e00\u306e\u97f3\u97ff\u30ea\u30d5\u30a1\u30ec\u30f3\u30b9\u3092\u5171\u6709\u3067\u304d\u307e\u3059.<\/p>\n\n<h3 class=\"wp-block-heading\"><strong>\u6e2c\u5b9a:\u9a12\u97f3\u30ec\u30d9\u30eb\u6642\u7cfb\u5217\u30c7\u30fc\u30bf\u306e\u53d6\u5f97<\/strong><\/h3>\n\n<p>OpenTest \u3067<strong>\u9a12\u97f3\u8a08\u30e2\u30b8\u30e5\u30fc\u30eb<\/strong>\u306b\u5207\u308a\u66ff\u3048\u3001\u6b21\u306e\u9805\u76ee\u3092\u9078\u629e\u3057\u307e\u3059:<\/p>\n\n<ul class=\"wp-block-list\">\n<li>\u6e2c\u5b9a\u30c1\u30e3\u30cd\u30eb<\/li>\n\n\n\n<li>\u6f14\u7b97\u5bfe\u8c61\u91cf(Lp\u3001Leq\u3001Ln \u306a\u3069)<\/li>\n\n\n\n<li>\u5468\u6ce2\u6570\u7279\u6027(A \/ C \/ Z.\u3044\u305a\u308c\u3082\u540c\u6642\u306b\u6f14\u7b97)<\/li>\n<\/ul>\n\n<p>\u4ee3\u8868\u7684\u306a\u52d5\u4f5c\u6761\u4ef6\u3068\u3057\u3066\u3001\u6b21\u306e\u3088\u3046\u306a\u72b6\u614b\u304c\u8003\u3048\u3089\u308c\u307e\u3059:<\/p>\n\n<ul class=\"wp-block-list\">\n<li>\u30a2\u30a4\u30c9\u30eb<\/li>\n\n\n\n<li>\u901a\u5e38\u8ca0\u8377<\/li>\n\n\n\n<li>\u5168\u8ca0\u8377<\/li>\n<\/ul>\n\n<p>\u5404\u6761\u4ef6\u306b\u3064\u3044\u3066:<\/p>\n\n<ol class=\"wp-block-list\">\n<li>DUT \u3092\u76ee\u6a19\u3068\u3059\u308b\u52d5\u4f5c\u72b6\u614b\u3067\u5b89\u5b9a\u3055\u305b\u307e\u3059.<\/li>\n\n\n\n<li>OpenTest \u3067\u6e2c\u5b9a\u3092\u958b\u59cb\u3057\u307e\u3059.<\/li>\n\n\n\n<li>\u9a12\u97f3\u30ec\u30d9\u30eb\u306e\u6642\u7cfb\u5217\u3001\u30aa\u30af\u30bf\u30fc\u30d6\u30d0\u30f3\u30c9\u30d7\u30ed\u30c3\u30c8\u3001FFT \u30b9\u30da\u30af\u30c8\u30eb\u3092\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u3067\u76e3\u8996\u3057\u307e\u3059.<\/li>\n\n\n\n<li>\u5341\u5206\u306a\u6642\u9593\u304c\u7d4c\u904e\u3057\u305f\u3089\u6e2c\u5b9a\u3092\u505c\u6b62\u3057\u3001\u53d6\u5f97\u3057\u305f\u30c7\u30fc\u30bf\u30bb\u30c3\u30c8\u306b\u540d\u79f0\u3092\u4ed8\u3051\u307e\u3059.<\/li>\n<\/ol>\n\n<p>\u5404\u6e2c\u5b9a\u306f\u30c7\u30fc\u30bf\u30bb\u30c3\u30c8\u3068\u3057\u3066\u81ea\u52d5\u4fdd\u5b58\u3055\u308c\u3001\u5f8c\u304b\u3089\u306e\u6bd4\u8f03\u3084\u89e3\u6790\u306b\u5229\u7528\u3067\u304d\u307e\u3059.<\/p>\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1024\" height=\"554\" src=\"https:\/\/design.crysound.com\/wp-content\/uploads\/2026\/01\/1-2-1024x554.webp\" alt=\"\" class=\"wp-image-273352\" srcset=\"https:\/\/design.crysound.com\/wp-content\/uploads\/2026\/01\/1-2-1024x554.webp 1024w, https:\/\/design.crysound.com\/wp-content\/uploads\/2026\/01\/1-2-300x162.webp 300w, https:\/\/design.crysound.com\/wp-content\/uploads\/2026\/01\/1-2-768x415.webp 768w, https:\/\/design.crysound.com\/wp-content\/uploads\/2026\/01\/1-2-96x52.webp 96w, https:\/\/design.crysound.com\/wp-content\/uploads\/2026\/01\/1-2-1536x830.webp 1536w, https:\/\/design.crysound.com\/wp-content\/uploads\/2026\/01\/1-2-2048x1107.webp 2048w, https:\/\/design.crysound.com\/wp-content\/uploads\/2026\/01\/1-2-600x324.webp 600w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n<p class=\"has-text-align-left\"><em>\u56f3 2. OpenTest \u3092\u7528\u3044\u305f\u30de\u30eb\u30c1\u30c1\u30e3\u30cd\u30eb\u9a12\u97f3\u30ec\u30d9\u30eb\u6e2c\u5b9a<\/em><\/p>\n\n<h3 class=\"wp-block-heading\"><strong>\u30ec\u30dd\u30fc\u30c8\u4f5c\u6210:\u30c7\u30fc\u30bf\u304b\u3089\u30c8\u30ec\u30fc\u30b5\u30d6\u30eb\u306a\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3078<\/strong><\/h3>\n\n<p>\u6e2c\u5b9a\u5f8c\u306f\u3001OpenTest \u306e\u30ec\u30dd\u30fc\u30c8\u6a5f\u80fd\u3092\u7528\u3044\u3066\u69cb\u9020\u5316\u3055\u308c\u305f\u30ec\u30dd\u30fc\u30c8\u3092\u4f5c\u6210\u3067\u304d\u307e\u3059:<\/p>\n\n<ul class=\"wp-block-list\">\n<li>\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u60c5\u5831\u3001DUT \u306e\u8a73\u7d30\u3001\u52d5\u4f5c\u6761\u4ef6<\/li>\n\n\n\n<li>\u9078\u629e\u3057\u305f\u97f3\u97ff\u91cf(Leq\u3001Lmax\u3001LCpeak\u3001Ln \u306a\u3069)<\/li>\n\n\n\n<li>\u4f1a\u793e\u30ed\u30b4\u304a\u3088\u3073\u8a66\u9a13\u62c5\u5f53\u8005\u60c5\u5831<\/li>\n<\/ul>\n\n<p>\u751f\u6ce2\u5f62\u30c7\u30fc\u30bf\u3084\u89e3\u6790\u7d50\u679c\u3082\u3001\u30a2\u30fc\u30ab\u30a4\u30d6\u3084\u3055\u3089\u306a\u308b\u51e6\u7406\u306e\u305f\u3081\u306b\u30a8\u30af\u30b9\u30dd\u30fc\u30c8\u3067\u304d\u307e\u3059.<\/p>\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/design.crysound.com\/wp-content\/uploads\/2026\/01\/image-10-1024x554.webp\" alt=\"\" class=\"wp-image-265167\"\/><\/figure>\n\n<p class=\"has-text-align-left\"><em>\u56f3 3. OpenTest \u9a12\u97f3\u30ec\u30d9\u30eb\u6e2c\u5b9a\u30ec\u30dd\u30fc\u30c8<\/em><\/p>\n\n<h2 class=\"wp-block-heading\"><strong>CRY2851 \u30cf\u30f3\u30c9\u30d8\u30eb\u30c9\u9a12\u97f3\u8a08\u3068\u306e\u6bd4\u8f03<\/strong><\/h2>\n\n<p><strong>CRY2851<\/strong> \u306f\u3001A\/C\/Z \u7279\u6027\u304a\u3088\u3073 F\/S\/I \u6642\u9593\u7279\u6027\u3001\u5404\u7a2e\u97f3\u97ff\u30d1\u30e9\u30e1\u30fc\u30bf\u306e\u30d5\u30eb\u30bb\u30c3\u30c8\u306b\u5bfe\u5fdc\u3057\u305f\u3001<strong>IEC 61672-1:2013 \u6e96\u62e0\u306e\u30af\u30e9\u30b9 1 \u9a12\u97f3\u8a08<\/strong>\u3067\u3059.<\/p>\n\n<p>\u6bd4\u8f03\u624b\u9806:<\/p>\n\n<ol class=\"wp-block-list\">\n<li><strong>\u74b0\u5883\u304a\u3088\u3073\u52d5\u4f5c\u6761\u4ef6<\/strong><br\/>\u4f4e\u9a12\u97f3\u306e\u5b9f\u9a13\u5ba4\u307e\u305f\u306f\u6e96\u7121\u97ff\u5ba4\u3067\u3001\u8907\u6570\u306e\u52d5\u4f5c\u72b6\u614b\u306b\u3064\u3044\u3066\u8a55\u4fa1\u3057\u307e\u3059.<\/li>\n\n\n\n<li><strong>\u6821\u6b63\u306e\u4e00\u8cab\u6027<\/strong><br\/>\u4e21\u30b7\u30b9\u30c6\u30e0\u3092\u540c\u4e00\u306e\u30af\u30e9\u30b9 1 \u6821\u6b63\u5668(1 kHz \u3067 94 dB \u307e\u305f\u306f 114 dB)\u3067\u6821\u6b63\u3057\u307e\u3059.<\/li>\n\n\n\n<li><strong>\u30bb\u30f3\u30b5\u30fc\u914d\u7f6e\u304a\u3088\u3073\u53ce\u96c6<\/strong><br\/>\u30de\u30a4\u30af\u30ed\u30db\u30f3\u306f\u3001\u3067\u304d\u308b\u9650\u308a\u540c\u4e00\u306e\u6e2c\u5b9a\u70b9\u306b\u8fd1\u3044\u4f4d\u7f6e\u95a2\u4fc2\u3068\u306a\u308b\u3088\u3046\u306b\u914d\u7f6e\u3057\u307e\u3059.<\/li>\n\n\n\n<li><strong>\u7d50\u679c\u306e\u6bd4\u8f03<\/strong><br\/>\u540c\u4e00\u306e\u7279\u6027\u3068\u6642\u9593\u7a93\u306e\u4e0b\u3067\u3001LAeq\u3001LAF\u3001LCpeak \u306a\u3069\u306e\u4e3b\u8981\u30d1\u30e9\u30e1\u30fc\u30bf\u3092\u6bd4\u8f03\u3057\u307e\u3059.<\/li>\n<\/ol>\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/design.crysound.com\/wp-content\/uploads\/2026\/01\/image-11-1024x289.webp\" alt=\"\" class=\"wp-image-265168\"\/><\/figure>\n\n<p class=\"has-text-align-left\"><em>\u56f3 4. CRY2851 \u3068 OpenTest \u306b\u3088\u308b\u30de\u30eb\u30c1\u30c1\u30e3\u30cd\u30eb\u9a12\u97f3\u30ec\u30d9\u30eb\u6e2c\u5b9a\u306e\u6bd4\u8f03<\/em><\/p>\n\n<h2 class=\"wp-block-heading\"><strong>\u9a12\u97f3\u30ec\u30d9\u30eb\u6e2c\u5b9a\u30e2\u30b8\u30e5\u30fc\u30eb\u306e\u4ee3\u8868\u7684\u306a\u9069\u7528\u5206\u91ce<\/strong><\/h2>\n\n<h3 class=\"wp-block-heading\"><strong>\u30b3\u30f3\u30b7\u30e5\u30fc\u30de\u30a8\u30ec\u30af\u30c8\u30ed\u30cb\u30af\u30b9\uff0fIT \u6a5f\u5668<\/strong><\/h3>\n\n<ul class=\"wp-block-list\">\n<li>\u51b7\u5374\u65b9\u5f0f\u304c LAeq \u304a\u3088\u3073 LAFmax \u306b\u4e0e\u3048\u308b\u5f71\u97ff\u3092\u8a55\u4fa1<\/li>\n\n\n\n<li>\u9a12\u97f3\u30ec\u30d9\u30eb\u306e\u5236\u9650\u5024\u3068\u97f3\u97ff\u30d1\u30ef\u30fc\u6e2c\u5b9a\u3092\u7d44\u307f\u5408\u308f\u305b\u3066\u8a55\u4fa1<\/li>\n\n\n\n<li>FFT\u30011\/3 \u30aa\u30af\u30bf\u30fc\u30d6\u3001\u304a\u3088\u3073\u30b5\u30a6\u30f3\u30c9\u30af\u30aa\u30ea\u30c6\u30a3\u6307\u6a19\u3092\u7d71\u5408<\/li>\n<\/ul>\n\n<h3 class=\"wp-block-heading\"><strong>\u81ea\u52d5\u8eca NVH\uff0f\u8eca\u5ba4\u5185\u97f3\u97ff<\/strong><\/h3>\n\n<ul class=\"wp-block-list\">\n<li>\u8eca\u5ba4\u5185\u306e\u30de\u30eb\u30c1\u30dd\u30b8\u30b7\u30e7\u30f3\u9a12\u97f3\u30ec\u30d9\u30eb\u6e2c\u5b9a<\/li>\n\n\n\n<li>\u8d70\u884c\u6761\u4ef6\u9593\u306e\u6bd4\u8f03<\/li>\n\n\n\n<li>\u30aa\u30fc\u30c0\u89e3\u6790\u3084\u30b5\u30a6\u30f3\u30c9\u30af\u30aa\u30ea\u30c6\u30a3\u30e2\u30b8\u30e5\u30fc\u30eb\u3068\u306e\u9023\u6210<\/li>\n<\/ul>\n\n<h3 class=\"wp-block-heading\"><strong>\u5bb6\u5ead\u7528\u96fb\u5316\u88fd\u54c1\u304a\u3088\u3073\u7523\u696d\u6a5f\u68b0<\/strong><\/h3>\n\n<ul class=\"wp-block-list\">\n<li>\u97f3\u97ff\u30d1\u30ef\u30fc\u8a66\u9a13\u306b\u30de\u30eb\u30c1\u30dd\u30a4\u30f3\u30c8\u9a12\u97f3\u30ec\u30d9\u30eb\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u3092\u8ffd\u52a0<\/li>\n\n\n\n<li>\u30b7\u30fc\u30b1\u30f3\u30b9\u30e2\u30fc\u30c9\u3092\u5229\u7528\u3057\u3066\u751f\u7523\u30e9\u30a4\u30f3\u306b\u7d71\u5408<\/li>\n\n\n\n<li>1\/3 \u30aa\u30af\u30bf\u30fc\u30d6\u89e3\u6790\u306b\u3088\u308a\u3001\u554f\u984c\u306e\u3042\u308b\u5468\u6ce2\u6570\u5e2f\u57df\u3092\u7279\u5b9a<\/li>\n<\/ul>\n\n<h3 class=\"wp-block-heading\"><strong>\u74b0\u5883\u304a\u3088\u3073\u9577\u671f\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0<\/strong><\/h3>\n\n<ul class=\"wp-block-list\">\n<li>\u30de\u30eb\u30c1\u30dd\u30a4\u30f3\u30c8\u7d71\u8a08\u9a12\u97f3\u30ec\u30d9\u30eb\u8a55\u4fa1(L10\u3001L50\u3001L90)<\/li>\n\n\n\n<li>\u9577\u671f\u30c7\u30fc\u30bf\u30ed\u30ae\u30f3\u30b0\u304a\u3088\u3073\u30ea\u30e2\u30fc\u30c8\u30a2\u30af\u30bb\u30b9<\/li>\n<\/ul>\n\n<p><\/p>\n\n<p><\/p>\n\n<p>\u3059\u3067\u306b\u30cf\u30f3\u30c9\u30d8\u30eb\u30c9\u9a12\u97f3\u8a08\u306b\u6163\u308c\u89aa\u3057\u3093\u3067\u3044\u308b\u65b9\u306b\u3068\u3063\u3066\u3001<strong>OpenTest \u9a12\u97f3\u30ec\u30d9\u30eb\u6e2c\u5b9a\u30e2\u30b8\u30e5\u30fc\u30eb<\/strong>\u306f\u3001\u305d\u308c\u3089\u3092\u6b21\u306e\u7279\u9577\u3092\u6301\u3064\u30b7\u30b9\u30c6\u30e0\u3078\u3068\u5b9f\u8cea\u7684\u306b\u30a2\u30c3\u30d7\u30b0\u30ec\u30fc\u30c9\u3059\u308b\u5b58\u5728\u3067\u3059:<\/p>\n\n<ul class=\"wp-block-list\">\n<li><strong>\u30de\u30eb\u30c1\u30c1\u30e3\u30cd\u30eb<\/strong><\/li>\n\n\n\n<li><strong>\u30c8\u30ec\u30fc\u30b5\u30d6\u30eb<\/strong>(\u751f\u30c7\u30fc\u30bf\uff0b\u89e3\u6790\uff0b\u30ec\u30dd\u30fc\u30c8)<\/li>\n\n\n\n<li><strong>\u62e1\u5f35\u53ef\u80fd<\/strong>\u3067\u3001\u97f3\u97ff\u30d1\u30ef\u30fc\u3001\u30b5\u30a6\u30f3\u30c9\u30af\u30aa\u30ea\u30c6\u30a3\u3001FFT\u3001\u30aa\u30af\u30bf\u30fc\u30d6\u30d0\u30f3\u30c9\u89e3\u6790\u30e2\u30b8\u30e5\u30fc\u30eb\u3068\u30b7\u30fc\u30e0\u30ec\u30b9\u306b\u9023\u643a\u3057\u3001\u81ea\u52d5\u5316\u3055\u308c\u305f\u8a66\u9a13\u30ef\u30fc\u30af\u30d5\u30ed\u30fc\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u307e\u3059.<\/li>\n<\/ul>\n\n<p><\/p>\n\n<p><\/p>\n\n<p>\u4e0b\u8a18\u306e<strong>\u30d5\u30a9\u30fc\u30e0\u306b\u3054\u8a18\u5165<\/strong>\u3044\u305f\u3060\u304f\u3053\u3068\u3067\u3001OpenTest 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