{"id":169,"date":"2009-12-09T17:09:56","date_gmt":"2009-12-09T08:09:56","guid":{"rendered":"http:\/\/fpga.cool.coocan.jp\/wordpress\/?p=169"},"modified":"2009-12-09T17:09:56","modified_gmt":"2009-12-09T08:09:56","slug":"usb-audio%e3%80%81%e3%81%9d%e3%81%ae12","status":"publish","type":"post","link":"http:\/\/fpga.cool.coocan.jp\/wordpress\/?p=169","title":{"rendered":"USB AUDIO\u3001\u305d\u306e12"},"content":{"rendered":"<p>REC\u30e2\u30fc\u30c9\u306b\u304a\u3051\u308b\u300c\u3046\u3093\u3061\u304f\u300d\u3067\u3059\u30fb\u30fb\u30fb\u3002<\/p>\n<p>\u672cUSB\u57fa\u677f\u306eFPGA\u306b\u306f\u3001PCM4204\u304c\u51fa\u529b\u3059\u308bDSD\u3092PCM\uff0888.2kHz\uff09\u306b\u5909\u63db\u3059\u308b\u30c7\u30b7\u30e1\u30fc\u30b7\u30e7\u30f3\u30d5\u30a3\u30eb\u30bf\u3092\u7d44\u307f\u8fbc\u3093\u3067\u3044\u307e\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u3001PCM4204\u304b\u3089\u306eDSD\u9332\u97f3\u6642\uff08PCM4204\u304b\u3089\u306fDSD\u30aa\u30f3\u30ea\u30fc\u306e\u51fa\u529b\uff09\u306b\u3082\u30012ch\u5206\u306fS\/PDIF\u3092\u51fa\u529b\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u30c7\u30b7\u30e1\u30fc\u30b7\u30e7\u30f3\u30d5\u30a3\u30eb\u30bf\u81ea\u4f53\u306f4ch\u5206\u7d44\u307f\u8fbc\u3093\u3067\u3044\u307e\u3059\u306e\u3067\u30014ch\u9332\u97f3\u6642\u306b\u306fREC\u30ec\u30d9\u30eb\u30924ch\u5206LED\u30ec\u30d9\u30eb\u30e1\u30fc\u30bf\u3067\u78ba\u8a8d\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u9332\u97f3\u3057\u305fDSD\u30c7\u30fc\u30bf\uff08DSDIFF\u30d5\u30a1\u30a4\u30eb\uff09\u306f\u3001TASCAM\u3084KORG\u3068\u4e92\u63db\u6027\u304c\u3042\u308b\u3082\u306e\u3067\u3059\u304c\u3001PCM\uff08wave\u30d5\u30a1\u30a4\u30eb\uff09\u306b\u5909\u63db\u3059\u308bWindows\u30a2\u30d7\u30ea\u3092\u6dfb\u4ed8\u3057\u307e\u3059\u306e\u3067\u3001DSD\u3060\u3051\u3067\u306f\u306a\u304f\u3001WAVE\u3068\u3057\u3066\u3082\u904b\u7528\u304c\u53ef\u80fd\u3067\u3059\u3002<\/p>\n<p>\u7d04-30dB\u306e1kHz\u6b63\u5f26\u6ce2\u3092\u3001\u4e0a\u304b\u3089<\/p>\n<ol>\n<li>192kHz\u306ePCM\u3067\u53ce\u9332\u3057\u305f\u5834\u5408\u3001<\/li>\n<li>2.8MHz\u306eDSD\uff08\u5f53\u65b9\u3067\u306fDSD64\u3068\u547c\u79f0\uff09\u3067\u53ce\u9332\u3057\u305f\u5834\u5408\u3001<\/li>\n<li>5.6MHz\u306eDSD\uff08\u5f53\u65b9\u3067\u306fDSD128\u3068\u547c\u79f0\uff09\u3067\u53ce\u9332\u3057\u305f\u5834\u5408<\/li>\n<\/ol>\n<p>\u306eWaveSpectra\u306b\u3088\u308b\u753b\u50cf\u3092\u53c2\u8003\u306b\u63b2\u8f09\u3057\u307e\u3059\u3002\u3069\u308c\u3082\u4f4e\u57df\u304c\u5c11\u3057\u3046\u308b\u3055\u3044\u3067\u3059\u304c\u3001\u96fb\u6e90\u306e\u30ea\u30c3\u30d7\u30eb\u306e\u9ad8\u8abf\u6ce2\u3060\u3068\u601d\u3044\u307e\u3059\u3002\u7121\u5e30\u9084\u96fb\u6e90\u306e\u30ea\u30c3\u30d7\u30eb\u30d5\u30a3\u30eb\u30bf\u304c\u5f31\u3044\u304b\uff1f<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" style=\"vertical-align: text-bottom;\" src=\"http:\/\/fpga.cool.coocan.jp\/electrart\/image200912\/192.jpg\" alt=\"\" width=\"480\" height=\"226\" \/><\/p>\n<p>PCM4204\u306e\u30c7\u30b7\u30e1\u30fc\u30b7\u30e7\u30f3\u30d5\u30a3\u30eb\u30bf\u306e\u7279\u6027\u304c\u51fa\u3066\u3044\u307e\u3059\u3002-80dB\u4f4d\u307e\u3067DSD\uff08\u30c7\u30eb\u30bf\u30b7\u30b0\u30de\uff09\u306e\u30ce\u30a4\u30ba\u3092\u6b8b\u3057\u3066\u3044\u307e\u3059\u3002192kHz\u30b5\u30f3\u30d7\u30ea\u30f3\u30b0\u3068\u3044\u3063\u3066\u3082\u300140kHz\u304b\u3089\u4e0a\u306f\u30ce\u30a4\u30ba\u304c\u652f\u914d\u7684\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" style=\"vertical-align: text-bottom;\" src=\"http:\/\/fpga.cool.coocan.jp\/electrart\/image200912\/64.jpg\" alt=\"\" width=\"480\" height=\"226\" 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src=\"http:\/\/fpga.cool.coocan.jp\/electrart\/image200912\/128.jpg\" alt=\"\" width=\"480\" height=\"226\" 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\u672cUSB\u57fa\u677f\u306eFPGA\u306b\u306f\u3001PCM4204\u304c\u51fa\u529b\u3059\u308bDSD\u3092PCM\uff0888.2kHz\uff09\u306b\u5909\u63db\u3059\u308b\u30c7\u30b7\u30e1\u30fc\u30b7\u30e7\u30f3\u30d5\u30a3\u30eb\u30bf\u3092\u7d44\u307f\u8fbc\u3093\u3067\u3044\u307e\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u3001PCM4204\u304b\u3089\u306eDSD &hellip; <a href=\"http:\/\/fpga.cool.coocan.jp\/wordpress\/?p=169\" class=\"more-link\"><span class=\"screen-reader-text\">&#8220;USB AUDIO\u3001\u305d\u306e12&#8221; \u306e<\/span>\u7d9a\u304d\u3092\u8aad\u3080<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11],"tags":[],"class_list":["post-169","post","type-post","status-publish","format-standard","hentry","category-hardware-debug"],"_links":{"self":[{"href":"http:\/\/fpga.cool.coocan.jp\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/169","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/fpga.cool.coocan.jp\/wordpress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/fpga.cool.coocan.jp\/wordpress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/fpga.cool.coocan.jp\/wordpress\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/fpga.cool.coocan.jp\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=169"}],"version-history":[{"count":0,"href":"http:\/\/fpga.cool.coocan.jp\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/169\/revisions"}],"wp:attachment":[{"href":"http:\/\/fpga.cool.coocan.jp\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=169"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/fpga.cool.coocan.jp\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=169"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/fpga.cool.coocan.jp\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=169"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}