{"id":19827,"date":"2016-06-22T21:05:13","date_gmt":"2016-06-22T12:05:13","guid":{"rendered":"http:\/\/audiosharing.com\/blog\/?p=19827"},"modified":"2016-06-22T21:05:56","modified_gmt":"2016-06-22T12:05:56","slug":"hi-res%e3%81%ab%e3%81%a4%e3%81%84%e3%81%a6%ef%bc%88%e3%81%9d%e3%81%ae%ef%bc%95%ef%bc%89","status":"publish","type":"post","link":"http:\/\/audiosharing.com\/blog\/?p=19827","title":{"rendered":"Hi-Res\u306b\u3064\u3044\u3066\uff08\u305d\u306e\uff15\uff09"},"content":{"rendered":"<div class=\"theContentWrap-ccc\"><p>\u30a2\u30f3\u30d7\u306bNFB\u3092\u304b\u3051\u308b\u3053\u3068\u3067\u3001\u7279\u6027\u306f\u6539\u5584\u3055\u308c\u308b\u3002<br \/>\n\u5468\u6ce2\u6570\u7279\u6027\u306f\u306e\u3073\u3001\u5404\u7a2e\u306e\u6b6a\u3082\u6e1b\u308b\u3002\u30b2\u30a4\u30f3\u3082\u5b89\u5b9a\u5316\u3055\u308c\u308b\u3002<\/p>\n<p>\u30e1\u30ea\u30c3\u30c8\u306f\u304b\u306a\u308a\u3042\u308b\u3002<br 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\/>\n\u30d5\u30a3\u30f3\u30e9\u30f3\u30c9\u306e\u7269\u7406\u5b66\u8005\u30de\u30c3\u30c6\u30a3\u30fb\u30aa\u30bf\u30e9\uff08Matti Otala\uff09\u304c\u30011963\u5e74\u306b\u767a\u898b\u3057\u305f\u6b6a\u3067\u3042\u308b\u3002<br \/>\n1968\u5e74\u304b\u3089TIM\u6b6a\u306e\u7406\u8ad6\u3065\u3051\u3092\u306f\u3058\u3081\u30011970\u5e74\u306b\u307b\u307c\u7d42\u4e86\u3002<br \/>\n1972\u5e74\u306bTIM\u6b6a\u62bd\u51fa\u306e\u8ad6\u6587\u3092\u767a\u8868\u30011974\u5e74\u30a2\u30f3\u30d7\u306eTIM\u6b6a\u6e2c\u5b9a\u6cd5\u3092\u767a\u8868\u3002<br \/>\n1975\u5e74\u306b\u3001TIM\u7406\u8ad6\u3092\u767a\u8868\u3002<\/p>\n<p>\u305d\u306e\u5f8c\u30011976\u5e74\u306bIIM (Interface Intermodulation)\u3092\u3001<br \/>\n1979\u5e74\u306b\u306fPIM (Phase Intermodulation)\u3092\u767a\u898b\u3057\u3066\u3044\u308b\u3002<\/p>\n<p>\u3053\u306e\u3053\u308d\u30de\u30c3\u30c6\u30a3\u30fb\u30aa\u30bf\u30e9\u306e\u6642\u306e\u4eba\u3060\u3063\u305f\u3002<br 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\/>\n\u30de\u30c3\u30c6\u30a3\u30fb\u30aa\u30bf\u30e9\u306f1939\u5e74\u751f\u308c\u30012015\u5e74\u306b\u4ea1\u304f\u306a\u3063\u3066\u3044\u308b\u3002<\/p>\n<p>57\u53f7\u306e\u30a4\u30f3\u30bf\u30f4\u30e5\u30fc\u8a18\u4e8b\u306b\u306f\u3001TIM\u767a\u898b\u306e\u304d\u3063\u304b\u3051\u306e\u30a8\u30d4\u30bd\u30fc\u30c9\u304c\u8f09\u3063\u3066\u3044\u308b\u3002<br \/>\n\u653e\u9001\u5c40\u306b\u52e4\u3081\u308b\u30de\u30c3\u30c6\u30a3\u30fb\u30aa\u30bf\u30e9\u306e\u53cb\u4eba\u304c80dB\u3082\u306eNFB\u3092\u304b\u3051\u305f\u30d1\u30ef\u30fc\u30a2\u30f3\u30d7\u3092\u4f5c\u3063\u3066\u3001<br \/>\n\u5f7c\u306e\u5bb6\u306b\u6301\u3061\u8fbc\u3093\u3060\u3002<\/p>\n<p>\u305d\u308c\u306f\u975e\u5e38\u306b\u786c\u3044\u97f3\u306e\u3059\u308b\u30a2\u30f3\u30d7\u3060\u3063\u305f\u305d\u3046\u3060\u3002<br \/>\n\u53cb\u4eba\u306f\u3001\u97f3\u304c\u786c\u3044\u306e\u306fNFB\u306b\u539f\u56e0\u304c\u3042\u308b\u306e\u3067\u306f\u306a\u304f\u3001\u4ed6\u306e\u3068\u3053\u308d\u306b\u3042\u308b\u306f\u305a\u3060\u304b\u3089\u3001<br \/>\n\u4e00\u7dd2\u306b\u63a2\u3057\u3066\u307b\u3057\u3044\u3001\u3068\u3044\u3046\u3053\u3068\u3060\u3063\u305f\u304c\u3001\u4f55\u306e\u554f\u984c\u3082\u767a\u898b\u3067\u304d\u306a\u304b\u3063\u305f\u3002<\/p>\n<p>\u6570\u65e5\u5f8c\u3001\u4eca\u5ea6\u306f\u53cb\u4eba\u5b85\u306b\u884c\u3063\u3066\u3001\u3075\u305f\u305f\u3073\u305d\u306e\u30a2\u30f3\u30d7\u306e\u97f3\u3092\u8074\u3044\u3066\u3044\u308b\u3002<br \/>\n\u306f\u308b\u304b\u306b\u3044\u3044\u97f3\u306b\u306a\u3063\u3066\u3044\u305f\u305d\u3046\u3060\u3002<\/p>\n<p>\u305f\u3060\u3057\u3001\u53cb\u4eba\u306f50W\u51fa\u529b\u306e\u30a2\u30f3\u30d7\u3068\u3057\u3066\u8a2d\u8a08\u3057\u305f\u306e\u306b\u300130W\u306e\u51fa\u529b\u3057\u304b\u3068\u308c\u3066\u3044\u306a\u3044\u3001\u3068\u3002<br \/>\n\u53cb\u4eba\u306f\u3001\u30c8\u30e9\u30f3\u30b8\u30b9\u30bf\u30fc\u306e\u30a8\u30df\u30c3\u30bf\u30fc\u3068\u30b3\u30ec\u30af\u30bf\u30fc\u3092\u9006\u306b\u63a5\u7d9a\u3057\u3066\u3044\u305f\u305f\u3081\u3001<br \/>\n\u51fa\u529b\u304c\u8a2d\u8a08\u3088\u308a\u3082\u5c0f\u3055\u306a\u5024\u306b\u306a\u3063\u3066\u3044\u305f\u308f\u3051\u3060\u3002<\/p>\n<p>\u3064\u307e\u308a\u30a2\u30f3\u30d7\u306eNFB\u3092\u304b\u3051\u308b\u524d\u306e\u30b2\u30a4\u30f3\u306f\u8a2d\u8a08\u5024\u3088\u308a\u3082\u4f4e\u304f\u3001<br \/>\n\u5f53\u7136\u305d\u306e\u5206NFB\u91cf\u3082\u6e1b\u3063\u3066\u3044\u305f\u308f\u3051\u3060\u3002<\/p>\n<p>\u305d\u3053\u3067\u30a8\u30df\u30c3\u30bf\u30fc\u3068\u30b3\u30ec\u30af\u30bf\u30fc\u3092\u6b63\u3057\u304f\u63a5\u7d9a\u3057\u306a\u304a\u3057\u305f\u3089\u3001\u307e\u305f\u97f3\u306f\u786c\u304f\u306a\u3063\u305f\u3001\u3068\u3042\u308b\u3002<br \/>\n1963\u5e74\u306e\u3053\u308d\u306e\u8a71\u3060\u304b\u3089\u3001\u30de\u30c3\u30c6\u30a3\u30f3\u30fb\u30aa\u30bf\u30e9\u304c<br \/>\n\u300c80dB\u3082NFB\u3082\u304b\u3051\u305f\u3089\u97f3\u306f\u826f\u304f\u306a\u3089\u306a\u3044\u3088\u300d\u3068\u8a00\u3063\u3066\u3082\u3001\u53cb\u4eba\u306f\u4fe1\u3058\u306a\u304b\u3063\u305f\u305d\u3046\u3060\u3002<\/p>\n<p>\u3053\u306e\u6642\u70b9\u3067\u306f\u3001\u306a\u305cNFB\u3092\u304b\u3051\u3059\u304e\u308b\u3068\u97f3\u306b\u3068\u3063\u3066\u6709\u5bb3\u306a\u306e\u304b\u3001<br \/>\n\u305d\u306e\u30b7\u30b9\u30c6\u30e0\u3092\u89e3\u660e\u3057\u3066\u3044\u305f\u308f\u3051\u3067\u306f\u306a\u304b\u3063\u305f\u3051\u308c\u3069\u3001\u7d4c\u9a13\u4e0a\u611f\u3058\u3066\u3044\u305f\u3088\u3046\u3060\u3002<\/p>\n<p>\u30de\u30c3\u30c6\u30a3\u30f3\u30fb\u30aa\u30bf\u30e9\u306eTIM\u306b\u3064\u3044\u3066\u306e\u8ad6\u6587\u306f\u3001\u691c\u7d22\u3059\u308c\u3070\u898b\u3064\u304b\u308b\u3068\u601d\u3046\u3002<br \/>\n\u82f1\u6587\u3067\u898b\u3064\u304b\u308b\u306f\u305a\u3060\u3002<\/p>\n<p>TIM\u6b6a\u3068\u5f93\u6765\u306e\u6b6a\u3068\u306e\u5927\u304d\u306a\u9055\u3044\u306f\u3001<br \/>\nTIM\u6b6a\u306f\u3044\u308f\u306f\u52d5\u7684\u6b6a\u3067\u3042\u308a\u3001\u5f93\u6765\u306e\u6df7\u5909\u8abf\u6b6a\u3001\u9ad8\u8abf\u6ce2\u6b6a\u306f\u9759\u7684\u6b6a\u3068\u3044\u3048\u3001<br \/>\nNFB\u306f\u9759\u7684\u6b6a\u306b\u5bfe\u3057\u3066\u306f\u975e\u5e38\u306b\u6709\u52b9\u3067\u3042\u3063\u3066\u3082\u3001<br \/>\n\u9069\u5207\u306b\u6271\u308f\u306a\u3051\u308c\u3070\u52d5\u7684\u6b6a\u306e\u767a\u751f\u539f\u56e0\u3068\u306a\u308b\u3002<\/p>\n<p>\u30de\u30c3\u30c6\u30a3\u30fb\u30aa\u30bf\u30e9\u306fNFB\u3092\u30a2\u30b9\u30d4\u30ea\u30f3\u306b\u3082\u4f8b\u3048\u3066\u3044\u308b\u3002<br \/>\n\u8efd\u3044\u982d\u75db\u3067\u3042\u308c\u3070\u308f\u305a\u304b\u306a\u30a2\u30b9\u30d4\u30ea\u30f3\u3067\u304a\u3055\u307e\u308b\u3002<br \/>\n\u3051\u308c\u306910kg\u306e\u3082\u306e\u3082\u30a2\u30b9\u30d4\u30ea\u30f3\u3092\u6442\u53d6\u3057\u305f\u3089\u975e\u3068\u306f\u6b7b\u3093\u3067\u3057\u307e\u3046\u3001\u3068\u3002<\/p>\n<p>\u3061\u306a\u307f\u306b57\u53f7\uff081980\u5e74\u6642\u70b9\uff09\u3067\u3001\u6700\u9069\u306aNFB\u91cf\u306f\u3001<br \/>\n\u30a2\u30f3\u30d7\u306e\u56de\u8def\u3001\u4f7f\u7528\u3059\u308b\u30d1\u30fc\u30c4\u306b\u3088\u3063\u3066\u5909\u3063\u3066\u304f\u308b\u305f\u3081\u4e00\u6982\u306b\u3044\u3048\u306a\u3044\u3068\u3053\u3068\u308f\u3063\u305f\u3046\u3048\u3067\u3001<br \/>\n1970\u5e74\u306e\u6642\u70b9\u3067\u306f22dB\u30011980\u5e74\u3067\u306f12dB\u7a0b\u5ea6\u3060\u3068\u3044\u3063\u3066\u3044\u308b\u3002<\/p>\n<p>57\u53f7\u306e\u8868\u7d19\u306f\u30cf\u30fc\u30de\u30f3\u30ab\u30fc\u30c9\u30f3\u306e\u30d1\u30ef\u30fc\u30a2\u30f3\u30d7\u3001<br \/>\nCitation XX\uff08\u30b5\u30a4\u30c6\u30fc\u30b7\u30e7\u30f3\u30fb\u30c0\u30d6\u30eb\u30a8\u30c3\u30af\u30b9\uff09\u3067\u3042\u308a\u3001<br \/>\n\u3053\u306e\u30a2\u30f3\u30d7\u306e\u56de\u8def\u8a2d\u8a08\u306f\u30de\u30c3\u30c6\u30a3\u30fb\u30aa\u30bf\u30e9\u3067\u3042\u308a\u3001NFB\u91cf\u306f9dB\u3068\u304b\u306a\u308a\u4f4e\u304f\u6291\u3048\u3089\u308c\u3066\u3044\u305f\u3002<\/p>\n<p>57\u53f7\u306e\u8a18\u4e8b\u3067\u3001\u8208\u5473\u6df1\u3044\u306e\u306f\u30a6\u30a3\u30ea\u30a2\u30e0\u30bd\u30f3\u30fb\u30a2\u30f3\u30d7\u306b\u3064\u3044\u3066\u3067\u3042\u308b\u3002<br \/>\n\u7ba1\u7403\u5f0f\u30a2\u30f3\u30d7\u3068\u3057\u3066\u306f\u3001\u591a\u91cf\u306eNFB\u3092\u304b\u3051\u3066\u8a71\u984c\u306b\u306a\u3063\u305f\u304c\u3001NFB\u306f20dB\u3067\u3042\u308b\u3002<\/p>\n<p>\u30de\u30c3\u30c6\u30a3\u30fb\u30aa\u30bf\u30e9\u306b\u3088\u308b\u3068\u3001\u30a6\u30a3\u30ea\u30a2\u30e0\u30bd\u30f3\u306e1933\u5e74\u306e\u8ad6\u6587\u306b\u306f\u3001<br 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