{"id":277,"date":"2011-01-11T09:39:31","date_gmt":"2011-01-11T00:39:31","guid":{"rendered":"http:\/\/fpga.cool.coocan.jp\/wordpress\/?p=277"},"modified":"2011-01-11T09:39:31","modified_gmt":"2011-01-11T00:39:31","slug":"ubuntu1010-%e3%81%a8-bit-perfect%e5%86%8d%e7%94%9f","status":"publish","type":"post","link":"http:\/\/fpga.cool.coocan.jp\/wordpress\/?p=277","title":{"rendered":"Ubuntu10.10 \u3068 bit perfect\u518d\u751f"},"content":{"rendered":"<p>\u3042\u308c\u304b\u3089\u3001USB DUAL AUDIO\u57fa\u677f\u3092Ubuntu10.10\u304c\u52d5\u4f5c\u3059\u308bThinkPad X31\u306b\u633f\u5165\u3057\u3001Audacious\u3067\u30c6\u30b9\u30c8\u4fe1\u53f7\u3092\u518d\u751f\u3057\u3066bit perfect\u306b\u306a\u3063\u3066\u3044\u308b\u304b\u3069\u3046\u304b\u78ba\u8a8d\u3057\u305f\u3068\u3053\u308d\u3001\u6b8b\u5ff5\u306a\u304c\u3089\u305d\u3046\u306f\u306a\u3063\u3066\u3044\u307e\u305b\u3093\u3067\u3057\u305f\u3002\u5ff5\u306e\u305f\u3081Audacity\u3067\u3082\u8a66\u3057\u3066\u307f\u307e\u3057\u305f\u304c\u3001\u3084\u306f\u308a\u540c\u3058\u3067\u3057\u305f\u3002<\/p>\n<p>\u3061\u306a\u307f\u306b\u3001\u78ba\u8a8d\u65b9\u6cd5\u306f\u4f8b\u306b\u3088\u3063\u3066USB DUAL AUDIO\u57fa\u677f\u306eS\/PDIF\u51fa\u529b\u3092\u3001\u5225\u306eASIO\u5bfe\u5fdcAudio\u30c7\u30d0\u30a4\u30b9\u306eS\/PDIF\u5165\u529b\u306b\u3064\u306a\u3044\u3067WaveSpectra\u3067\u30b9\u30da\u30af\u30c8\u30e9\u30e0\u3092\u30c1\u30a7\u30c3\u30af\u3059\u308b\u3068\u3044\u3046\u65b9\u6cd5\u3067\u3059\u3002<\/p>\n<p>Audacious\u3084Audacity\u306a\u3069\u306e\u666e\u901a\u306e\u30a2\u30d7\u30ea\u3067\u518d\u751f\u3057\u305f\u5834\u5408\u3001\u4f55\u3089\u304b\u306emixer\u3092\u7d4c\u7531\u3057\u3066\u3057\u307e\u3046\u3088\u3046\u3067\u3059\u3002\u3082\u3068\u3082\u3068\u6c4e\u7528\u306eOS\u306a\u306e\u3067\u4ed5\u65b9\u306e\u306a\u3044\u3053\u3068\u3067\u3059\u3002<\/p>\n<p>\u3067\u3001\u6628\u65e5\u306e\u30d6\u30ed\u30b0\u3067\u3054\u7d39\u4ecb\u3057\u305f\u300cN\u69d8\u300d\u306b\u3054\u6559\u793a\u3044\u305f\u3060\u3044\u305f\u3053\u3068\u306a\u306e\u3067\u3059\u304c\u3001\u30bf\u30fc\u30df\u30ca\u30eb\u304b\u3089\u30b3\u30de\u30f3\u30c9\u3067\u8d77\u52d5\u3059\u308b &#8220;aplay&#8221; \u3068\u3044\u3046\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u4f7f\u3063\u3066\u30aa\u30fc\u30c7\u30a3\u30aa\u30fb\u30c7\u30d0\u30a4\u30b9\u3092\u76f4\u63a5\u64cd\u4f5c\u3059\u308b\u30a4\u30e1\u30fc\u30b8\u306e\u51e6\u7406\u3092\u884c\u3046\u3053\u3068\u3067(\u3057\u304b\uff1f)\u3001bit perfect\u518d\u751f\u304c\u3067\u304d\u308b\u305d\u3046\u3067\u3059\u3002<a href=\"http:\/\/www.nakata-jp.org\/computer\/howto\/audio\/alsa.html\" target=\"_blank\">\u3053\u3061\u3089<\/a>\u306b\u89e3\u8aac\u3092\u3044\u305f\u3060\u304d\u307e\u3057\u305f\u3002<\/p>\n<p>Terminal\u3092\u8d77\u52d5\u3057\u3001\u30b3\u30de\u30f3\u30c9\u3067 aplay -l[Enter] \u3068\u6253\u3064\u3068\u3001\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u306e\u30aa\u30fc\u30c7\u30a3\u30aa\u30c7\u30d0\u30a4\u30b9\u4e00\u89a7\u304c\u8868\u793a\u3055\u308c\u307e\u3059\u3002\u4e0b\u306e\u753b\u50cf\u3067\u306fcard1, device0 \u304c EZ-USB\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u306e\u3067\u3001aplay -D hw:1,0 filename.wav[Enter] \u3068\u6253\u3064\u3053\u3068\u3067\u3001USB DUAL AUDIO\u57fa\u677f\u304b\u3089\u5b9f\u969b\u306bbit perfect\u3067\u518d\u751f\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3057\u305f\u3002<\/p>\n<p>filename.wav \u306e\u3068\u3053\u308d\u306f\u3001Terminal\u306eWindow\u4e0a\u3078wave\u30d5\u30a1\u30a4\u30eb\u3092\u30c9\u30e9\u30c3\u30b0&amp;\u30c9\u30ed\u30c3\u30d7\u3059\u308c\u3070\u7c21\u5358\u3067\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" style=\"vertical-align: text-bottom;\" src=\"http:\/\/fpga.cool.coocan.jp\/electrart\/image201101\/command.gif\" alt=\"\" width=\"480\" height=\"340\" \/><\/p>\n<p>\u9014\u4e2d\u3067\u518d\u751f\u3092\u6b62\u3081\u305f\u3044\u3068\u304d\u306b\u3069\u3046\u3059\u308c\u3070\u3088\u3044\u306e\u304b\u307e\u3060\u308f\u304b\u3063\u3066\u3044\u307e\u305b\u3093\u304c\u3001bit perfect\u306b\u306a\u3063\u3066\u3044\u308b\u3068\u8003\u3048\u3089\u308c\u307e\u3059\u3002<\/p>\n<p>\u4e0a\u306e\u518d\u751f\u4f8b\u306f24bit\/96000Hz\u3067\u3059\u304c\u300124bit\/176400Hz\u306e\u30d5\u30a1\u30a4\u30eb\u3092\u518d\u751f\u3057\u305f\u5834\u5408\u3082\u3001bit perfect\u306b\u306a\u3063\u3066\u3044\u308b\u6a21\u69d8\u3067\u3059\u3002<\/p>\n<p><a href=\"http:\/\/fpga.cool.coocan.jp\/electrart\/image201101\/bit_perfect.gif\" target=\"_self\"><img loading=\"lazy\" decoding=\"async\" style=\"vertical-align: text-bottom;\" src=\"http:\/\/fpga.cool.coocan.jp\/electrart\/image201101\/th_bit_perfect.gif\" alt=\"\" width=\"480\" height=\"234\" \/><\/a><\/p>\n<p>bit perfect\u306e\u518d\u751f\u74b0\u5883\u304c\u307e\u3060\u6574\u3063\u3066\u3044\u306a\u3044\u611f\u3058\u3067\u3059\u304c\u3001\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u3068\u3057\u3066Ubuntu10.10\u306f\u975e\u5e38\u306b\u53ef\u80fd\u6027\u304c\u3042\u3063\u3066\u9b45\u529b\u7684\u3067\u3059\u306d\u3002ThinkPad X31\u306f\u307e\u3060\u307e\u3060\u624b\u653e\u305b\u305d\u3046\u306b\u3042\u308a\u307e\u305b\u3093\u3002\u30e1\u30e2\u30ea\u30fc\u30922GB\u306b\u5897\u5f37\u3057\u3066\u304a\u3044\u3066\u3088\u304b\u3063\u305f\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u3042\u308c\u304b\u3089\u3001USB DUAL AUDIO\u57fa\u677f\u3092Ubuntu10.10\u304c\u52d5\u4f5c\u3059\u308bThinkPad X31\u306b\u633f\u5165\u3057\u3001Audacious\u3067\u30c6\u30b9\u30c8\u4fe1\u53f7\u3092\u518d\u751f\u3057\u3066bit perfect\u306b\u306a\u3063\u3066\u3044\u308b\u304b\u3069\u3046\u304b\u78ba\u8a8d\u3057\u305f\u3068\u3053\u308d\u3001\u6b8b\u5ff5\u306a\u304c\u3089\u305d &hellip; <a href=\"http:\/\/fpga.cool.coocan.jp\/wordpress\/?p=277\" class=\"more-link\"><span class=\"screen-reader-text\">&#8220;Ubuntu10.10 \u3068 bit perfect\u518d\u751f&#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":[4,11],"tags":[],"class_list":["post-277","post","type-post","status-publish","format-standard","hentry","category-usb_audio","category-hardware-debug"],"_links":{"self":[{"href":"http:\/\/fpga.cool.coocan.jp\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/277","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=277"}],"version-history":[{"count":0,"href":"http:\/\/fpga.cool.coocan.jp\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/277\/revisions"}],"wp:attachment":[{"href":"http:\/\/fpga.cool.coocan.jp\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=277"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/fpga.cool.coocan.jp\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=277"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/fpga.cool.coocan.jp\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=277"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}