{"id":6807,"date":"2019-03-21T23:05:47","date_gmt":"2019-03-21T14:05:47","guid":{"rendered":"http:\/\/www.code-magagine.com\/?p=6807"},"modified":"2023-04-14T23:49:59","modified_gmt":"2023-04-14T14:49:59","slug":"%e3%80%90%e3%83%9e%e3%83%ab%e3%83%81%e3%83%a1%e3%83%87%e3%82%a3%e3%82%a2%e3%80%91pcm%e7%b3%bb%e3%82%b5%e3%82%a6%e3%83%b3%e3%83%89%e3%81%ae%e3%80%8c%e3%83%81%e3%83%a3%e3%83%b3%e3%83%8d%e3%83%ab","status":"publish","type":"post","link":"http:\/\/www.code-magagine.com\/?p=6807","title":{"rendered":"\u3010\u30de\u30eb\u30c1\u30e1\u30c7\u30a3\u30a2\u3011\u97f3\u58f0\u30c7\u30fc\u30bf\u306e\u77e5\u8b58\uff08PCM\u7cfb\u30b5\u30a6\u30f3\u30c9\u306e\u300cAD\u5909\u63db\u7cbe\u5ea6\u300d\u3001\u300c\u30c1\u30e3\u30f3\u30cd\u30eb(\u30e2\u30ce\u30e9\u30eb\u30fb\u30b9\u30c6\u30ec\u30aa)\u300d\uff09"},"content":{"rendered":"<p>\u97f3\u58f0\u30c7\u30fc\u30bf\u306f\u3001\u5927\u304d\u304f\u4e0b\u8a18\uff12\u7a2e\u985e\u306e\u30c7\u30fc\u30bf\u306b\u5206\u304b\u308c\u307e\u3059\u3002<\/p>\n<ul>\n<li>MIDI\u7cfb\u30b5\u30a6\u30f3\u30c9\u30d5\u30a1\u30a4\u30eb<\/li>\n<li>PCM\u7cfb\u30b5\u30a6\u30f3\u30c9\u30d5\u30a1\u30a4\u30eb<\/li>\n<\/ul>\n<h2>MIDI(Musical Instruments Digital Interface)\u7cfb\u30b5\u30a6\u30f3\u30c9\u30d5\u30a1\u30a4\u30eb<\/h2>\n<p>\u3082\u3068\u3082\u3068\u3001\u30b7\u30f3\u30bb\u30b5\u30a4\u30b6\u3084\u97f3\u6e90\u3092PC\u306b\u63a5\u7d9a\u3057\u3066\u30c7\u30fc\u30bf\u3092\u3084\u308a\u53d6\u308a\u3059\u308b\u305f\u3081\u306b\u8003\u3048\u51fa\u3055\u308c\u305f\u898f\u683c\u3067\u3057\u305f\u304c\u3001<span style=\"color: #ff0000;\"><strong>\u4f5c\u6210\u304c\u5bb9\u6613\u3067\u30d5\u30a1\u30a4\u30eb\u30b5\u30a4\u30ba\u304c\u5c0f\u3055\u304b\u3063\u305f\u306e\u3067\u3001\u73fe\u5728\u5e83\u304f\u666e\u53ca\u3057\u3066\u3044\u308b\u97f3\u58f0\u30c7\u30fc\u30bf\u5f62\u5f0f<\/strong><\/span>\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p><span style=\"color: #ff0000;\"><strong>\u300c\u97f3\u7a0b\u300d\u3084\u300c\u97f3\u306e\u9577\u3055\u300d\u3001\u300c\u97f3\u306e\u5927\u304d\u3055\u300d\u7b49\u306e\u300c\u97f3\u306e\u8981\u7d20\u300d\u3060\u3051<\/strong><\/span>\u304c\u542b\u307e\u308c\u3066\u304a\u308a\u300c\u97f3\u305d\u306e\u3082\u306e\u300d\u304c\u542b\u307e\u308c\u3066\u3044\u308b\u308f\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<h3>MIDI\u306e\u30e1\u30ea\u30c3\u30c8<\/h3>\n<p>PCM\u7cfb\u3068\u6bd4\u3079\u305f\u5927\u304d\u306a\u30e1\u30ea\u30c3\u30c8\u3068\u3057\u3066\u306f\u3001\u540c\u3058\u66f2\u306e\u6642\u9593\u306e\u30c7\u30fc\u30bf\u304c\u3042\u3063\u305f\u3068\u3057\u3066\u3082\u3001<span style=\"color: #ff0000;\"><strong>\u97f3\u305d\u306e\u3082\u306e\u3092\u542b\u307e\u306a\u3044\u305f\u3081\u6975\u7aef\u306b\u30d5\u30a1\u30a4\u30eb\u30b5\u30a4\u30ba\u3092\u5c0f\u3055\u304f\u3067\u304d\u308b\u70b9<\/strong><\/span>\u306b\u306a\u308a\u307e\u3059\u3002\uff08WAVE\u306750MB\u304b\u304b\u308b\u3088\u3046\u306a\u30d5\u30a1\u30a4\u30eb\u304c\u3001MIDI\u3067\u3042\u308c\u3070<span style=\"color: #ff0000;\"><strong>\u6570KB\u7a0b\u5ea6<\/strong><\/span>\u306b\u53ce\u307e\u308a\u307e\u3059\u3002\uff09<\/p>\n<h3>MIDI\u97f3\u6e90<\/h3>\n<p>\u300cMIDI\u97f3\u6e90\u300d\u3068\u3044\u3046\u6a5f\u5668\u304c\u3001MIDI\u306e\u60c5\u5831\u306b\u6cbf\u3063\u3066\u6f14\u594f\u3059\u308b\u3053\u3068\u306b\u306a\u308b\u306e\u3067\u3059\u304c\u3001MIDI\u97f3\u6e90\u306b\u3088\u3063\u3066\u3001\u66f2\u306e\u30cb\u30e5\u30a2\u30f3\u30b9\u304c\u5927\u304d\u304f\u5909\u308f\u3063\u305f\u308a\u3057\u307e\u3059\u3002<\/p>\n<h2>PCM\u7cfb\u30b5\u30a6\u30f3\u30c9\u30d5\u30a1\u30a4\u30eb<\/h2>\n<p>MIDI\u3068\u9055\u3044<span style=\"color: #ff0000;\"><strong>\u300c\u97f3\u305d\u306e\u3082\u306e\u300d<\/strong><\/span>\u306e\u60c5\u5831\u3092\u542b\u307f\u307e\u3059\u3002<\/p>\n<h3>PCM\u3068\u306f\uff1f<\/h3>\n<p>\u97f3\u58f0\u306e<span style=\"color: #ff0000;\"><strong>AD\u5909\u63db<\/strong><\/span>\u3059\u308b\uff08\u30a2\u30ca\u30ed\u30b0\u304b\u3089\u30c7\u30b8\u30bf\u30eb\u5316\u3059\u308b\uff09\u65b9\u5f0f\u306e\u4e00\u3064\u3067\u3059\u3002<\/p>\n<p>\u672c\u6765\u30a2\u30ca\u30ed\u30b0\u30c7\u30fc\u30bf\u3067\u3042\u308b\u300c\u97f3\u300d\u3092\u3001\u4e00\u5b9a\u6642\u9593\u3054\u3068\u306b<span style=\"color: #ff0000;\"><strong>\u6570\u5024\u5316\uff08\u30b5\u30f3\u30d7\u30ea\u30f3\u30b0\uff09<\/strong><\/span>\u3059\u308b\u65b9\u6cd5\u3067\u3059\u3002<\/p>\n<h3>PCM\u7cfb\u30b5\u30a6\u30f3\u30c9\u30d5\u30a1\u30a4\u30eb\u306e\u5f62\u5f0f\u306e\u7a2e\u985e<\/h3>\n<p>PCM\u7cfb\u306b\u306f\u3001WAVE\u3084MP3\u7b49\u306e\u5f62\u5f0f\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<h4>WAVE<\/h4>\n<ul>\n<li>Windows\u6a19\u6e96\u30b5\u30a6\u30f3\u30c9\u30d5\u30a1\u30a4\u30eb\u5f62\u5f0f\u306b\u306a\u308a\u307e\u3059\u3002<\/li>\n<li><span style=\"color: #ff0000;\"><strong>\u7121\u5727\u7e2e<\/strong><\/span>\u306e\u305f\u3081\u30c7\u30fc\u30bf\u30b5\u30a4\u30ba\u304c\u5927\u304d\u3044\u3067\u3059\u3002\uff085\u5206\u7a0b\u5ea6\u306e\u697d\u66f2\u3067\u3042\u308c\u3070\u300150MB\u7a0b\u5ea6\u5fc5\u8981\u3068\u306a\u308a\u307e\u3059\u3002\uff09<\/li>\n<\/ul>\n<p>PCM\u7cfb\u30b5\u30a6\u30f3\u30c9\u30d5\u30a1\u30a4\u30eb\u306b\u304a\u3044\u3066\u3001AD\u5909\u63db\u3092\u73fe\u3059\u969b\u306b\u7528\u3044\u3089\u308c\u305f\u6307\u6a19\u3068\u3057\u3066\u306f\u4e0b\u8a18\u306e\uff12\u3064\u3067\u3057\u305f\u3002<\/p>\n<ul>\n<li>\u30b5\u30f3\u30d7\u30ea\u30f3\u30b0\u30ec\u30fc\u30c8<\/li>\n<li>\u91cf\u5b50\u5316\u30d3\u30c3\u30c8<\/li>\n<\/ul>\n<h2>\u30b5\u30f3\u30d7\u30ea\u30f3\u30b0\u5468\u6ce2\u6570\uff08\u30b5\u30f3\u30d7\u30ea\u30f3\u30b0\u30ec\u30fc\u30c8\uff09<\/h2>\n<p>\u30b5\u30f3\u30d7\u30ea\u30f3\u30b0\u5468\u6ce2\u6570\u306f\u3001<span style=\"color: #ff0000;\"><strong>\u300c\u6642\u9593\u7684\u306a\u7cbe\u5ea6\u300d<\/strong><\/span>\u3092\u793a\u3057\u3066\u304a\u308a\u3001<span style=\"color: #ff0000;\"><strong>\u300c1\u79d2\u9593\u306b\u4f55\u56de\u3001\u30a2\u30ca\u30ed\u30b0\u30c7\u30fc\u30bf\u306e\u6570\u5024\u3092\u5909\u63db\u3059\u308b\u304b\u300d<\/strong><\/span>\u3068\u3044\u3046\u6307\u6a19\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<h3>\u30b5\u30f3\u30d7\u30ea\u30f3\u30b0\u30ec\u30fc\u30c8\u306e\u5358\u4f4d<\/h3>\n<p><span style=\"color: #ff0000;\"><strong>\u300cHz\uff08\u30d8\u30eb\u30c4\uff09\u300d<\/strong><\/span>\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>1\u79d2\u9593\u306b10\u56de\u5909\u63db\u3059\u308b\u306e\u3067\u3042\u308c\u307010Hz\u3067\u3059\u3057\u30011\u79d2\u9593\u306b100\u56de\u5909\u63db\u3059\u308b\u306e\u3067\u3042\u308c\u3070100Hz\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<h3>CD\u306e\u5834\u5408<\/h3>\n<p><span style=\"color: #ff0000;\"><strong>\u300c44.1kHz\u300d<\/strong><\/span>\u3068\u3044\u3046\u30b5\u30f3\u30d7\u30ea\u30f3\u30b0\u30ec\u30fc\u30c8\u304c\u4f7f\u308f\u308c\u3066\u304a\u308a\u30011\u79d2\u9593\u306b44100\u56de\u3001\u30a2\u30ca\u30ed\u30b0\u30c7\u30fc\u30bf\u3092\u30c7\u30b8\u30bf\u30eb\u5909\u63db\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<h3>DVD\u306e\u5834\u5408<\/h3>\n<p>46kHz\u3084\u300196kHz\u7b49\u304c\u4f7f\u308f\u308c\u3066\u8ca0\u3044\u307e\u3059\u30021\u79d2\u9593\u306b46000\u56de\u300196000\u56de\u5909\u63db\u304c\u884c\u308f\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<h3>\u4e3b\u306a\u7528\u9014\u306e\u307e\u3068\u3081<\/h3>\n<table>\n<tbody>\n<tr>\n<th>\u30b5\u30f3\u30d7\u30ea\u30f3\u30b0\u30ec\u30fc\u30c8<\/th>\n<th>\u97f3\u8cea<\/th>\n<\/tr>\n<tr>\n<td>11kHz<\/td>\n<td>\u96fb\u8a71\u306e\u97f3\u8cea<\/td>\n<\/tr>\n<tr>\n<td>22kHz<\/td>\n<td>AM\u30e9\u30b8\u30aa\u306e\u97f3\u8cea<\/td>\n<\/tr>\n<tr>\n<td>33kHz<\/td>\n<td>FM\u30e9\u30b8\u30aa\u3001\u30c6\u30ec\u30d3\u306e\u97f3\u8cea<\/td>\n<\/tr>\n<tr>\n<td>44.1kHz<\/td>\n<td>CD\u306e\u97f3\u8cea<\/td>\n<\/tr>\n<tr>\n<td>48kHz<\/td>\n<td>DAT(CD\u306e\u539f\u76e4)\u306e\u97f3\u8cea<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>\u91cf\u5b50\u5316\u30d3\u30c3\u30c8\uff08\u30b5\u30f3\u30d7\u30ea\u30f3\u30b0\u30fb\u30d3\u30c3\u30c8\uff09<\/h2>\n<p>\u91cf\u5b50\u5316\u30d3\u30c3\u30c8\u3068\u306f\u3001<span style=\"color: #ff0000;\"><strong>\u300c\u6e2c\u5b9a\u6642\u306e\u6e2c\u5b9a\u7cbe\u5ea6\u300d<\/strong><\/span>\u3092\u73fe\u3057\u307e\u3059\u3002<\/p>\n<p>1\u30d3\u30c3\u30c8\u306a\u30892\u6bb5\u968e\u30013\u30d3\u30c3\u30c8\u306a\u30898\u6bb5\u968e\u30015\u30d3\u30c3\u30c8\u306a\u308932\u6bb5\u968e\u3068\u968e\u4e0a\u3067\u5897\u3048\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n<p><span style=\"color: #ff0000;\"><strong>\u30d3\u30c3\u30c8\u6570\u304c\u591a\u3051\u308c\u3070\u591a\u3044\u307b\u3069\u539f\u97f3\u3092\u5fe0\u5b9f\u306b\u30c8\u30ec\u30fc\u30b9\u3059\u308b<\/strong><\/span>\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u305f\u3060\u3001\u30ea\u30a2\u30eb\u306a\u97f3\u3092\u4f5c\u308a\u51fa\u3059\u305f\u3081\u306b\u306f\u305d\u308c\u3060\u3051\u3067\u306f\u305f\u308a\u307e\u305b\u3093\u3002<\/p>\n<p>\u97f3\u306b\u7acb\u4f53\u611f\u3092\u51fa\u3059\u305f\u3081\u306b\u7528\u3044\u3089\u308c\u308b\u306e\u304c<span style=\"color: #ff0000;\"><strong>\u300c\u30c1\u30e3\u30f3\u30cd\u30eb\u51e6\u7406\u300d<\/strong><\/span>\u3067\u3059\u3002<\/p>\n<h2>\u30c1\u30e3\u30f3\u30cd\u30eb\u51e6\u7406\u3068\u306f\uff1f<\/h2>\n<p>\u7c21\u5358\u306b\u8a00\u3048\u3070\u3001<span style=\"color: #ff0000;\"><strong>\u300c\u30b9\u30c6\u30ec\u30aa\u300d\u3084\u300c\u30e2\u30ce\u30e9\u30eb\u300d\u306e\u3053\u3068<\/strong><\/span>\u3067\u3059\u3002<\/p>\n<h3>\u30e2\u30ce\u30e9\u30eb<\/h3>\n<p>\u30b9\u30d4\u30fc\u30ab\u30fc\u304c1\u3064\u3057\u304b\u306a\u304f\u3001<span style=\"color: #ff0000;\"><strong>\u97f3\u304c\u4e00\u304b\u6240\u304b\u3089\u3057\u304b\u805e\u3053\u3048\u3066\u3053\u306a\u3044\u3053\u3068<\/strong><\/span>\u3067\u3059\u3002<\/p>\n<p>\u30c1\u30e3\u30f3\u30cd\u30eb\u6570\u306f<span style=\"color: #ff0000;\"><strong>\u300c1\u300d<\/strong><\/span>\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<h3>\u30b9\u30c6\u30ec\u30aa<\/h3>\n<p>\u30b9\u30d4\u30fc\u30ab\u30fc\u304c2\u3064\u3042\u308a\u3001\u97f3\u304c\u4e8c\u304b\u6240\u304b\u3089\u805e\u3053\u3048\u3066\u304d\u307e\u3059\u3002<\/p>\n<p>\u30c1\u30e3\u30f3\u30cd\u30eb\u6570\u306f<span style=\"color: #ff0000;\"><strong>\u300c2\u300d<\/strong><\/span>\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u5f53\u305f\u308a\u524d\u3067\u3059\u304c\u3001<span style=\"color: #ff0000;\"><strong>\u30e2\u30ce\u30e9\u30eb\u306b\u6bd4\u3079\u305f\u3089\u5727\u5012\u7684\u306b\u30b9\u30c6\u30ec\u30aa\u306e\u65b9\u304c\u30ea\u30a2\u30eb\u306b\u805e\u3053\u3048\u307e\u3059\u3002<\/strong><\/span><\/p>\n<p>\u305f\u3060\u3001\u30c7\u30e1\u30ea\u30c3\u30c8\u3068\u3057\u3066\u306f\u3001\u30e2\u30ce\u30e9\u30eb\u306b\u6bd4\u3079\u305f\u3089\u30c7\u30fc\u30bf\u5bb9\u91cf\u304c\u500d\u306b\u5897\u3048\u307e\u3059\u3002<\/p>\n<h2>\u6700\u8fd1\u306f\u3002\u3002<\/h2>\n<p>\u6700\u8fd1\u306f\u3001\u30b9\u30c6\u30ec\u30aa\u306e\uff12\u30c1\u30e3\u30f3\u30cd\u30eb\u4ee5\u4e0a\u306b\u7acb\u4f53\u611f\u306e\u3042\u308b<span style=\"color: #ff0000;\"><strong>\u300c4ch\u30b5\u30e9\u30a6\u30f3\u30c9\u300d<\/strong><\/span>\u3084<span style=\"color: #ff0000;\"><strong>\u300c\u30c9\u30eb\u30d3\u30fc\u30c7\u30b8\u30bf\u30eb5.1\u30c1\u30e3\u30f3\u30cd\u30eb\u300d<\/strong><\/span>\u306a\u3093\u304b\u3067\u97f3\u58f0\u53ce\u9332\u3055\u308c\u308b\u30b1\u30fc\u30b9\u3082\u3042\u308a\u307e\u3059\u3002\uff08DVD\u3068\u304b\u3067\u4fdd\u5b58\u3055\u308c\u307e\u3059\u306d\u3002\uff09<\/p>\n<p>\u305f\u3060\u3001\u30c7\u30fc\u30bf\u5bb9\u91cf\u7b49\u306e\u517c\u306d\u5408\u3044\u3082\u542b\u3081\u3066\u3001\u4e00\u756a\u4e3b\u6d41\u306e\u97f3\u58f0\u30c7\u30fc\u30bf\u65b9\u5f0f\u3068\u3057\u3066\u306f<span style=\"color: #ff0000;\"><strong>\u300c2ch\u30b9\u30c6\u30ec\u30aa\u300d<\/strong><\/span>\u3068\u3057\u3066\u4fdd\u5b58\u3055\u308c\u308b\u3053\u3068\u304c\u591a\u3044\u3067\u3057\u3087\u3046\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u97f3\u58f0\u30c7\u30fc\u30bf\u306f\u3001\u5927\u304d\u304f\u4e0b\u8a18\uff12\u7a2e\u985e\u306e\u30c7\u30fc\u30bf\u306b\u5206\u304b\u308c\u307e\u3059\u3002 MIDI\u7cfb\u30b5\u30a6\u30f3\u30c9\u30d5\u30a1\u30a4\u30eb PCM\u7cfb\u30b5\u30a6\u30f3\u30c9\u30d5\u30a1\u30a4\u30eb MIDI(Musical Instruments Digital Interface)\u7cfb\u30b5\u30a6\u30f3\u30c9\u30d5\u30a1\u30a4\u30eb \u3082\u3068\u3082 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