{"id":368,"date":"2015-08-13T15:04:38","date_gmt":"2015-08-13T06:04:38","guid":{"rendered":"http:\/\/www.u2-life.net\/ss\/?p=368"},"modified":"2015-12-31T09:59:01","modified_gmt":"2015-12-31T00:59:01","slug":"raspberry-pi2%e3%81%a7%e3%83%a9%e3%83%b3%e3%83%80%e3%83%a0%e3%81%aa%e3%82%b5%e3%82%a6%e3%83%b3%e3%83%89%e5%86%8d%e7%94%9f","status":"publish","type":"post","link":"http:\/\/www.u2-life.net\/ss\/blog\/2015\/08\/13\/raspberry-pi2%e3%81%a7%e3%83%a9%e3%83%b3%e3%83%80%e3%83%a0%e3%81%aa%e3%82%b5%e3%82%a6%e3%83%b3%e3%83%89%e5%86%8d%e7%94%9f\/","title":{"rendered":"Raspberry Pi2\u3067\u30e9\u30f3\u30c0\u30e0\u306a\u30b5\u30a6\u30f3\u30c9\u518d\u751f"},"content":{"rendered":"

\u30b7\u30a7\u30eb\u3092\u4f7f\u3063\u3066\u3054\u304f\u7c21\u4fbf\u306b\u3001\u3054\u304f\u7c21\u4fbf\u306bn\u7a2e\u985e\u306e\u30b5\u30a6\u30f3\u30c9(.wav)\u3092\u30e9\u30f3\u30c0\u30e0\u306b\u518d\u751f\u3055\u305b\u308b\u65b9\u6cd5<\/p>\n

  • 0.wav \u304b\u3089 (n-1).wav\u307e\u3067\u306en\u7a2e\u306ewav\u30d5\u30a1\u30a4\u30eb\u3092\u7528\u610f\u3057\u3001\u4eee\u306b\/home\/pi\/your_local_dir\/\u914d\u4e0b\u306b\u7f6e\u304f<\/li>\n
  • \u4ee5\u4e0b\u306e\u30b7\u30a7\u30eb\u30d5\u30a1\u30a4\u30eb\u3092\u4f5c\u308b
    \n\u3000\u3000\u3000\u3000\u3000\u3000SEED=$(head -c4 \/dev\/urandom | od -t u4 | awk ‘{print $2 }’)
    \n aplay \/home\/pi\/your_local_dir\/$(($SEED % n+1)).wav <-n+1\u306b\u306f\u5b9f\u969b\u306e\u6570\u5024\u3092\u5165\u308c\u308b<\/li>\n
  • \u4ee5\u4e0b\u306e\u30b7\u30a7\u30eb\u30d5\u30a1\u30a4\u30eb\u3092\u4f5c\u308b
    \n\u3000\u3000\u3000\u3000\u3000\u3000aplay \/home\/pi\/your_local_dir\/$((RANDOM % n)).wav <-n\u306b\u306f\u5b9f\u969b\u306e\u6570\u5024\u3092\u5165\u308c\u308b<\/del><\/li>\n

    CRON\u306b\u4ed5\u8fbc\u3093\u3067\u304a\u3051\u3070\u5b9a\u6642\u306b\u30e9\u30f3\u30c0\u30e0\u306a\u30b5\u30a6\u30f3\u30c9\u3092\u697d\u3057\u3081\u307e\u3059<\/p>\n","protected":false},"excerpt":{"rendered":"

    \u30b7\u30a7\u30eb\u3092\u4f7f\u3063\u3066\u3054\u304f\u7c21\u4fbf\u306b\u3001\u3054\u304f\u7c21\u4fbf\u306bn\u7a2e\u985e\u306e\u30b5\u30a6\u30f3\u30c9(.wav)\u3092\u30e9\u30f3\u30c0\u30e0\u306b\u518d\u751f\u3055\u305b\u308b\u65b9\u6cd5 0.wav \u304b\u3089 (n-1).wav\u307e\u3067\u306en\u7a2e\u306ewav\u30d5\u30a1\u30a4\u30eb\u3092\u7528\u610f\u3057\u3001\u4eee\u306b\/home\/pi\/your_local_dir\/\u914d\u4e0b \u7d9a\u304d\u3092\u8aad\u3080 <\/i><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[21],"tags":[],"class_list":["post-368","post","type-post","status-publish","format-standard","hentry","category-rasberry-pi"],"_links":{"self":[{"href":"http:\/\/www.u2-life.net\/ss\/wp-json\/wp\/v2\/posts\/368","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.u2-life.net\/ss\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.u2-life.net\/ss\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.u2-life.net\/ss\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.u2-life.net\/ss\/wp-json\/wp\/v2\/comments?post=368"}],"version-history":[{"count":6,"href":"http:\/\/www.u2-life.net\/ss\/wp-json\/wp\/v2\/posts\/368\/revisions"}],"predecessor-version":[{"id":385,"href":"http:\/\/www.u2-life.net\/ss\/wp-json\/wp\/v2\/posts\/368\/revisions\/385"}],"wp:attachment":[{"href":"http:\/\/www.u2-life.net\/ss\/wp-json\/wp\/v2\/media?parent=368"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.u2-life.net\/ss\/wp-json\/wp\/v2\/categories?post=368"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.u2-life.net\/ss\/wp-json\/wp\/v2\/tags?post=368"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}