{"id":46,"date":"2015-12-09T00:00:53","date_gmt":"2015-12-08T15:00:53","guid":{"rendered":"http:\/\/www.cmpd.jp\/sy\/?p=46"},"modified":"2022-10-21T15:19:35","modified_gmt":"2022-10-21T06:19:35","slug":"asio_wasapi","status":"publish","type":"post","link":"https:\/\/www.cmpd.jp\/sy\/asio_wasapi\/","title":{"rendered":"PC\u30aa\u30fc\u30c7\u30a3\u30aa\u306e\u30cf\u30a4\u30ec\u30be\u518d\u751f\u65b9\u5f0f\uff08ASIO\u3068WASAPI\uff09\u3092\u6bd4\u8f03\u3059\u308b"},"content":{"rendered":"

\"img20\"<\/p>\n

PC\u30aa\u30fc\u30c7\u30a3\u30aa\u3067\u5229\u7528\u3059\u308bDAC\uff08\u30c7\u30b8\u30bf\u30eb\u3092\u30a2\u30ca\u30ed\u30b0\u306b\u5909\u63db\u3059\u308b\u88c5\u7f6e\uff09\u304c\u63d0\u4f9b\u3059\u308b\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\u306b\u306f\u3001ASIO\u3068WASAPI\u306e2\u7a2e\u985e\u304c\u5b58\u5728\u3057\u307e\u3059\u3002
\n2\u7a2e\u985e\u3068\u3082Windows PC\u304b\u3089DAC\uff08\u6b63\u78ba\u306b\u306fDAC\u30c9\u30e9\u30a4\u30d0\uff09\u3092\u64cd\u4f5c\u3059\u308b\u305f\u3081\u306eAPI\u4ed5\u69d8\uff08\u3042\u308b\u3044\u306f\u30aa\u30fc\u30c7\u30a3\u30aa\u30c9\u30e9\u30a4\u30d0\u306e\u898f\u683c\uff09\u3067\u3059\u3002\u518d\u751f\u30d7\u30ed\u30b0\u30e9\u30e0\u304cDAC\u3092\u64cd\u4f5c\u3059\u308b\u305f\u3081\u306e\u300c\u547c\u3073\u51fa\u3057\u624b\u9806\u306a\u3069\u306e\u898f\u7d04\u300d\u3068\u8868\u73fe\u3059\u308b\u3068\u308f\u304b\u308a\u3084\u3059\u3044\u304b\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n

WASAPI\u3068ASIO\u306e\u6982\u8981<\/h2>\n

WASAPI\uff08\u30ef\u30b5\u30d4\u3068\u547c\u3073\u307e\u3059\uff09\u306fMicrosoft\u793e\u3001ASIO\uff08\u6b63\u5f0f\u306a\u767a\u97f3\u306f\u805e\u3044\u305f\u3053\u3068\u304c\u306a\u3044\u306e\u3067\u3059\u304c\u3001\u79c1\u306f\u30a2\u30b8\u30aa\u3068\u547c\u3093\u3067\u3044\u307e\u3059\uff09\u306f\u30b9\u30bf\u30a4\u30f3\u30d0\u30fc\u30b0\u793e\u306eAPI\u4ed5\u69d8\u3067\u3059\u3002
\nWASAPI\u306fOS\u3092\u63d0\u4f9b\u3057\u3066\u3044\u308bMicrosoft\u793e\u3089\u3057\u304f\u4e2d\u7acb\u3067\u3042\u308a\u3001DAC\u306e\u6a5f\u80fd\u3092\u30d7\u30ed\u30b0\u30e9\u30e0\u306b\u63d0\u4f9b\u3059\u308b\u4f4d\u7f6e\u3065\u3051\u3067\u8a2d\u8a08\u3055\u308c\u3066\u3044\u308b\u3068\u611f\u3058\u307e\u3059\u3002\u518d\u751f\u30d7\u30ed\u30b0\u30e9\u30e0\u306f\u81ea\u5206\u3067\u30eb\u30fc\u30d7\u3057\u306a\u304c\u3089DAC\u3078\u306e\u30c7\u30fc\u30bf\u51fa\u529b\u3092\u7e70\u308a\u8fd4\u3057\u307e\u3059\u3002
\n\u5bfe\u3057\u3066ASIO\u306f\u3001\u30aa\u30fc\u30c7\u30a3\u30aa\u306e\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u3068\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u3092\u4e21\u65b9\u4f5c\u3063\u3066\u3044\u308b\u30b9\u30bf\u30a4\u30f3\u30d0\u30fc\u30b0\u793e\u306a\u3089\u3067\u306f\u306e\u8a2d\u8a08\u3067\u3001\u79c1\u306e\u611f\u899a\u3067\u306f\u30c7\u30d0\u30a4\u30b9\u5074\uff08DAC\u5074\uff09\u306e\u7acb\u3061\u4f4d\u7f6e\u3067\u518d\u751f\u30d7\u30ed\u30b0\u30e9\u30e0\u306b\u6a5f\u80fd\u3092\u63d0\u4f9b\u3057\u3066\u3044\u308b\u3088\u3046\u306b\u601d\u3048\u307e\u3059\u3002ASIO\u306e\u518d\u751f\u306f\u3001\u6700\u521d\u306bAPI\u5074\u3067\u9ad8\u3044\u512a\u5148\u9806\u4f4d\u306e\u30b9\u30ec\u30c3\u30c9\u304c\u8d77\u52d5\u3055\u308c\u3001\u305d\u306e\u30b9\u30ec\u30c3\u30c9\u4e0a\u3067\u518d\u751f\u30d7\u30ed\u30b0\u30e9\u30e0\u304c\u7e70\u308a\u8fd4\u3057\u547c\u3073\u51fa\u3055\u308c\u308b\uff08\u30b3\u30fc\u30eb\u30d0\u30c3\u30af\uff09\u65b9\u5f0f\u3067\u3059\u3002<\/p>\n

\u30d3\u30c3\u30c8\u6df1\u5ea6\u306e\u53d6\u308a\u6271\u3044<\/h2>\n

\u518d\u751f\u30d7\u30ed\u30b0\u30e9\u30e0\u304cWASAPI\u3092\u4f7f\u3046\u5834\u5408\u3001\u518d\u751f\u958b\u59cb\u6642\u306bDAC\u306e\u4ed5\u69d8\u3092\u53d6\u5f97\u3057\u3001\u3069\u306e\u4ed5\u69d8\u3092\u9069\u7528\u3059\u308b\u304b\u3092\u9078\u629e\u3057\u307e\u3059\u3002\u3053\u306e\u4ed5\u69d8\u306b\u306f\u30b5\u30f3\u30d7\u30ea\u30f3\u30b0\u5468\u6ce2\u6570\uff0844.1kHz\u3068\u304b96kHz\u7b49\u30011\u79d2\u9593\u306b\u30b5\u30f3\u30d7\u30ea\u30f3\u30b0\u3059\u308b\u56de\u6570\u306e\u3053\u3068\u3067\u3059\uff09\u3068\u30d3\u30c3\u30c8\u6df1\u5ea6\uff0816bit\u308424bit\u306a\u3069\u306e\uff11\u56de\u306e\u30b5\u30f3\u30d7\u30ea\u30f3\u30b0\u3092\u3069\u306e\u7a0b\u5ea6\u306e\u7cbe\u5ea6\u3067\u8a18\u9332\u3059\u308b\u304b\uff09\u306e\u6307\u5b9a\u304c\u542b\u307e\u308c\u307e\u3059\u3002
\n\u3053\u306e\u30d3\u30c3\u30c8\u6df1\u5ea6\u306fDAC\u306b\u3088\u308a\u7570\u306a\u308a\u300116,24,32bit\u306e3\u7a2e\u985e\u306b\u5bfe\u5fdc\u3059\u308b\u6a5f\u7a2e\u3082\u3042\u308c\u3070\u300116bit\u308432bit\u306a\u30691\u7a2e\u306e\u307f\u306b\u5bfe\u5fdc\u3059\u308b\u6a5f\u7a2e\u3082\u5b58\u5728\u3057\u307e\u3059\u3002
\n\u5bfe\u3057\u3066ASIO\u306f\u30b5\u30f3\u30d7\u30ea\u30f3\u30b0\u5468\u6ce2\u6570\u306f\u518d\u751f\u30d7\u30ed\u30b0\u30e9\u30e0\u304c\u6307\u5b9a\u3057\u307e\u3059\u304c\u3001\u30d3\u30c3\u30c8\u6df1\u5ea6\u306fDAC\u306e\u6307\u5b9a\u306b\u5f93\u3046\u65b9\u5f0f\u3067\u3059\u3002\u3064\u307e\u308a\u97f3\u6e90\u306e\u30d3\u30c3\u30c8\u6df1\u5ea6\u306b\u5408\u308f\u305b\u3066\u30d3\u30c3\u30c8\u6df1\u5ea6\u3092\u6307\u5b9a\u3059\u308b\u3053\u3068\u306f\u884c\u3044\u307e\u305b\u3093\u3002\u4e00\u822c\u7684\u306aDAC\u306f32bit\u3092\u6307\u5b9a\u3057\u3066\u304f\u308b\u3053\u3068\u304c\u591a\u3044\u3088\u3046\u3067\u3059\u3002
\n\u203b\u53c2\u8003\uff1aPioneer\u793e\u306eU-05\u306fASIO\u306e\u8a2d\u5b9a\u753b\u9762\u3067\u30e6\u30fc\u30b6\u30fc\u304c\u30d3\u30c3\u30c8\u6df1\u5ea6\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002<\/p>\n

\u30d3\u30c3\u30c8\u6df1\u5ea6\u306b\u3064\u3044\u3066\u306e\u8a73\u3057\u3044\u89e3\u8aac<\/h2>\n

\u30d3\u30c3\u30c8\u6df1\u5ea6\u3068\u306f\uff11\u56de\u306e\u30b5\u30f3\u30d7\u30ea\u30f3\u30b0\u5024\u3092\u3069\u306e\u30b5\u30a4\u30ba\u306e\u6574\u6570\u3067\u6271\u3046\u304b\u3092\u793a\u3059\u3082\u306e\u3067\u3059\u300224bit\u306f24\u6841\u306e2\u9032\u6570\u3067\u300132bit\u306f32\u6841\u306e2\u9032\u6570\u306e\u3053\u3068\u3092\u6307\u3057\u307e\u3059\u3002
\n24bit\u3067\u6271\u3048\u308b\u6570\u5024\u306f\u300110\u9032\u6570\u306b\u63db\u7b97\u3059\u308b\u3068-8,388,608 \uff5e 8,388,607\u306e16,777,216\u6bb5\u968e\u3067\u300132bit\u306e\u5834\u5408\u306f-2,147,483,648 \uff5e 2,147,483,647\u306e4,294,967,296\u6bb5\u968e\u3067\u3059\u300232bit\u306f24bit\u306e\u3061\u3087\u3046\u30698bit\u5206\u3001\u3064\u307e\u308a256\u500d\u306e\u7d30\u304b\u3055\u3092\u6301\u3061\u307e\u3059\u3002
\nCD\u30af\u30aa\u30ea\u30c6\u30a3\u306e\u30d3\u30c3\u30c8\u6df1\u5ea6\u306f16bit\u3067\u3059\u306e\u3067\u3001-32,768 \uff5e 32,767\u306e65,536\u6bb5\u968e\u3067\u3042\u308a\u3001\u30cf\u30a4\u30ec\u30be\u97f3\u6e90(PCM\u65b9\u5f0f)\u306e\u30d3\u30c3\u30c8\u6df1\u5ea6\u306f\u5927\u6982\u304c24bit\u3067\u3059\u3002\u3053\u308c\u306fCD\u306e256\u500d\u306e\u7d30\u304b\u3055\u3067\u3042\u308b24bit\u3067\u5341\u5206\u3068\u8003\u3048\u3089\u308c\u3066\u3044\u308b\u306e\u3060\u3068\u601d\u3044\u307e\u3059\u3002
\n\u5c1a\u3001\u97f3\u6e90\u304c24bit\u306e\u30c7\u30fc\u30bf\u309232bit\u30c7\u30fc\u30bf\u3068\u3057\u3066\u9001\u51fa\u3059\u308b\u6642\u306f\u3001\u5358\u306b\u30c7\u30fc\u30bf\u3092256\u500d\u3057\u307e\u3059\uff08\u4e0b\u4f4d8bit\u30920\u306b\u3057\u3066\u3001\u4e0a\u4f4d24bit\u306b\u97f3\u6e90\u30c7\u30fc\u30bf\u3092\u30b3\u30d4\u30fc\u3057\u307e\u3059\uff09\u3002<\/p>\n

DSD\u306e\u518d\u751f\u65b9\u5f0f<\/h2>\n

DSD\u306e\u518d\u751f\u306b\u3064\u3044\u3066\u306f\u3001ASIO\u306b\u306fDSD\u30c7\u30fc\u30bf\u5c02\u7528\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\u4ed5\u69d8\u304c\u3042\u308a\u307e\u3059\u3002\u4e00\u65b9\u3001WASAPI\u306b\u306fDSD\u5c02\u7528\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\u4ed5\u69d8\u306f\u7528\u610f\u3055\u308c\u3066\u3044\u307e\u305b\u3093\u3002
\nWASAPI\u3067\u306f\u300124bit\u306ePCM\u30c7\u30fc\u30bf\u306bDSD\u30c7\u30fc\u30bf\u3092\u8f09\u305b\u308bDoP\u3068\u3044\u3046\u65b9\u5f0f\u304c\u4f7f\u308f\u308c\u307e\u3059\u3002\u3053\u308c\u306f\u3001DSD\u30c7\u30fc\u30bf\u3060\u3068\u3044\u3046\u3053\u3068\u3092DAC\u306b\u793a\u30598bit\u306e\u30de\u30fc\u30ab\u30fc\u306816bit\u5206\u306e\u5b9f\u30c7\u30fc\u30bf\u3092\u3001\u666e\u901a\u306ePCM\u306e24bit\u30c7\u30fc\u30bf\u306e\u3088\u3046\u306bDAC\u306b\u9001\u51fa\u3059\u308b\u65b9\u5f0f\u3067\u3059\u3002\u4e00\u90e8\u306b\u306fASIO\u306eDoP\u3092\u63a1\u7528\u3057\u3066\u3044\u308bDAC\u3082\u5b58\u5728\u3057\u307e\u3059\u3002<\/p>\n

WASAPI\u306e\u5171\u6709\u30e2\u30fc\u30c9\u3068\u6392\u4ed6\u30e2\u30fc\u30c9<\/h2>\n

WASAPI\u306f\u5171\u6709\u30e2\u30fc\u30c9\u3068\u6392\u4ed6\u30e2\u30fc\u30c9\u3068\u3044\u30462\u7a2e\u985e\u306e\u30e2\u30fc\u30c9\u304c\u5b58\u5728\u3057\u307e\u3059\u3002\u5171\u6709\u30e2\u30fc\u30c9\u306fWindows\u306e\u30df\u30ad\u30b5\u30fc\u3092\u4f7f\u3046\u5b9f\u88c5\u3067\u3001\u6392\u4ed6\u30e2\u30fc\u30c9\u306f\uff11\u3064\u306e\u518d\u751f\u30bd\u30d5\u30c8\u304cDAC\u3092\u6392\u4ed6\u7684\u306b\u4f7f\u7528\u3059\u308b\u5b9f\u88c5\u3067\u3059\u3002Windows\u306f\u97f3\u697d\u518d\u751f\u4e2d\u306b\u8b66\u544a\u97f3\u3092\u9cf4\u3089\u3059\u306a\u3069\u3001\u8907\u6570\u306e\u97f3\u3092\u6df7\u305c\u308b\u30df\u30ad\u30b5\u30fc\u6a5f\u80fd\u304c\u3042\u308a\u3001\u3053\u308c\u304c\u5171\u6709\u30e2\u30fc\u30c9\u306e\u6b63\u4f53\u3067\u3059\u3002PCM\u3067\u97f3\u3092\u6df7\u305c\u308b\u306b\u306f\u3001\u30b5\u30f3\u30d7\u30ea\u30f3\u30b0\u30ec\u30fc\u30c8\u3084\u30d3\u30c3\u30c8\u6df1\u5ea6\u3092\u63c3\u3048\u3066\u304b\u3089\u6f14\u7b97\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u306e\u3067\u3001\u3053\u306e\u3068\u304d\u306b\u30d3\u30c3\u30c8\u30ed\u30b9\u304c\u751f\u3058\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u3064\u307e\u308a\u97f3\u8cea\u306f\u60aa\u304f\u306a\u308b\u65b9\u5411\u3067\u3059\u3002
\n\u826f\u3044\u97f3\u3092\u8ffd\u6c42\u3059\u308b\u305f\u3081\u306b\u306f\u3001WASAPI\u306f\u6392\u4ed6\u30e2\u30fc\u30c9\u3067\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n

\u7d50\u5c40\u3069\u3061\u3089\u304c\u512a\u308c\u3066\u3044\u308b\u306e\u304b<\/h2>\n

\u4f7f\u7528\u3059\u308bDAC\u304cASIO\u3068WASAPI\u306e\u4e21\u65b9\u306b\u5bfe\u5fdc\u3057\u3066\u3044\u308b\u5834\u5408\u3001\u3069\u3061\u3089\u304c\u597d\u307e\u3057\u3044\u304b\u306f\u3001\u30e1\u30fc\u30ab\u30fc\u306e\u63a8\u5968\u3092\u78ba\u8a8d\u3059\u308b\u304b\u3001\u5b9f\u969b\u306b\u8996\u8074\u3059\u308b\u3053\u3068\u3067\u5224\u65ad\u3057\u307e\u3059\u3002
\nDSD\u3092\u518d\u751f\u3059\u308b\u3068\u304d\u306bWASAPI\u306fDoP\u3060\u304b\u30891.5\u500d\u306e\u30c7\u30fc\u30bf\u8ee2\u9001\u304c\u5fc5\u8981\u3067\u97f3\u8cea\u7684\u306b\u4e0d\u5229\u3067\u3042\u308a\u3001ASIO\u304c\u512a\u79c0\u3067\u3042\u308b\u3068\u306e\u8a71\u3092\u805e\u304f\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u3057\u304b\u3057\u3001\u30c7\u30fc\u30bf\u8ee2\u9001\u91cf\u304c\u97f3\u8cea\u306b\u4e0e\u3048\u308b\u5f71\u97ff\u306f\u7d76\u5bfe\u7684\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u3061\u306a\u307f\u306bPCM\u306fASIO\u306f\u307b\u3068\u3093\u3069\u306eDAC\u306732bit\u56fa\u5b9a\u3067\u3042\u308a\u300124bit\u3060\u3051\u3092\u8ee2\u9001\u3059\u308b\u5834\u5408\u306b\u6bd4\u3079\u30661.33\u500d\u306e\u30c7\u30fc\u30bf\u8ee2\u9001\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n

\n

PR<\/h3>\n

\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u30c7\u30b6\u30a4\u30f3\u3067\u306f\u9ad8\u96e3\u6613\u5ea6\u3068\u3055\u308c\u308b\u30d7\u30ed\u30b0\u30e9\u30e0\u958b\u767a\u3082\u53d7\u8a17\u3057\u3066\u304a\u308a\u307e\u3059\u3002\u3069\u3046\u305e\u304a\u6c17\u8efd\u306b\u304a\u554f\u3044\u5408\u308f\u305b\u304f\u3060\u3055\u3044\u3002<\/p>\n

\u898b\u7a4d\u4f9d\u983c\u30fb\u304a\u554f\u3044\u5408\u308f\u305b<\/a><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

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