{"id":628,"date":"2021-03-29T09:25:03","date_gmt":"2021-03-29T00:25:03","guid":{"rendered":"https:\/\/sirius10.dip.jp\/blog\/wordpress\/?p=628"},"modified":"2021-03-29T19:35:51","modified_gmt":"2021-03-29T10:35:51","slug":"sox-%e3%82%92%e4%bd%bf%e3%81%86","status":"publish","type":"post","link":"https:\/\/sirius10.net\/blog\/wordpress\/index.php\/2021\/03\/29\/628\/","title":{"rendered":"sox \u3092\u4f7f\u3046"},"content":{"rendered":"\n<p>\u3000rtl_fm \u3067\u30e9\u30b8\u30aa\u3092\u805e\u3044\u3066\u3044\u307e\u3059\u304c\u3001\u30a2\u30f3\u30c6\u30ca\u3092\u3064\u3051\u305f\u308a\u3001\u96fb\u6ce2\u5f37\u5ea6\u304c\u5341\u5206\u3067\u3042\u308c\u3070\u3001\u307b\u307c\u30ce\u30a4\u30ba\u306a\u3057\u3067\u53d7\u4fe1\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u305f\u3002\u3068\u3053\u308d\u304c\u3001\u30ce\u30a4\u30ba\u304c\u306a\u304f\u306a\u3063\u305f\u3089\u97f3\u304c\u91d1\u5c5e\u7684\u306a\u611f\u3058\u304c\u3057\u307e\u3059\u3002\u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\u3067\u6b21\u306e\u3088\u3046\u306b\u5b9f\u884c\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"console\">$ rtl_fm -g 10 -f 82.5M -M fm -s 200000 -r 48000 -E deemp &#8211; | aplay -q -r 48000 -f S16_LE<\/p>\n\n\n\n<p>\u3000\u3088\u304f\u898b\u308b\u3068\u30b5\u30f3\u30d7\u30ea\u30f3\u30b0\u30ec\u30fc\u30c8\u304c 200kHz \u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002GNU Radio \u306e\u30d6\u30ed\u30c3\u30af\u56f3\u3067\u306f 1.5\u301c2MHz \u306b\u306a\u3063\u3066\u3044\u308b\u3082\u306e\u3092\u3088\u304f\u898b\u304b\u3051\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3000\u8a66\u3057\u306b 2MHz \u306b\u3057\u305f\u3089\u3001\u97f3\u306f\u826f\u304f\u306a\u3063\u305f\u611f\u3058\u304c\u3057\u307e\u3059\u304c\u3001\u97f3\u91cf\u304c\u5c0f\u3055\u304f\u306a\u308a\u307e\u3057\u305f\u3002\u30df\u30ad\u30b5\u30fc\u3067\u6700\u5927\u306b\u3057\u3066\u3082\u5c0f\u3055\u3044\u3067\u3059\u3002\u305d\u3053\u3067\u3001\u97f3\u3092\u5897\u5e45\u3057\u3066\u518d\u751f\u3059\u308b\u305f\u3081\u306b\u3001sox(play) \u3092\u4f7f\u3046\u3053\u3068\u306b\u3057\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<p class=\"console\">$ sudo apt-get install -y sox<br>$ rtl_fm -g 0 -f 82.5M -M fm -s 2000000 -r 48000 -E deemp &#8211; | play -q -t raw -r 48000 -e s -b 16 -c 1 &#8211; gain 25<\/p>\n\n\n\n<p>\u300025dB \u5897\u5e45\u3055\u305b\u307e\u3057\u305f\u3002\u3053\u308c\u3067\u30de\u30b7\u306b\u306a\u308a\u307e\u3057\u305f\u3002\u30e2\u30ce\u30e9\u30eb\u306a\u306e\u3067\u9332\u97f3\u3068\u304b\u3092\u3059\u308b\u3064\u3082\u308a\u306f\u3042\u308a\u307e\u305b\u3093\u304c\u3001\u6d41\u3057\u805e\u304d\u3059\u308b\u306a\u3089\u5341\u5206\u306b\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u3000rtl_fm \u3067\u30e9\u30b8\u30aa\u3092\u805e\u3044\u3066\u3044\u307e\u3059\u304c\u3001\u30a2\u30f3\u30c6\u30ca\u3092\u3064\u3051\u305f\u308a\u3001\u96fb\u6ce2\u5f37\u5ea6\u304c\u5341\u5206\u3067\u3042\u308c\u3070\u3001\u307b\u307c\u30ce\u30a4\u30ba\u306a\u3057\u3067\u53d7\u4fe1\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u305f\u3002\u3068\u3053\u308d\u304c\u3001\u30ce\u30a4\u30ba\u304c\u306a\u304f\u306a\u3063\u305f\u3089\u97f3\u304c\u91d1\u5c5e\u7684\u306a\u611f\u3058\u304c\u3057\u307e\u3059\u3002\u30b3\u30de\u30f3\u30c9\u30e9\u30a4\u30f3\u3067\u6b21\u306e\u3088\u3046\u306b\u5b9f\u884c\u3057\u3066 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":["post-628","post","type-post","status-publish","format-standard","hentry","category-raspberry-pi"],"_links":{"self":[{"href":"https:\/\/sirius10.net\/blog\/wordpress\/index.php\/wp-json\/wp\/v2\/posts\/628","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sirius10.net\/blog\/wordpress\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sirius10.net\/blog\/wordpress\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sirius10.net\/blog\/wordpress\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/sirius10.net\/blog\/wordpress\/index.php\/wp-json\/wp\/v2\/comments?post=628"}],"version-history":[{"count":2,"href":"https:\/\/sirius10.net\/blog\/wordpress\/index.php\/wp-json\/wp\/v2\/posts\/628\/revisions"}],"predecessor-version":[{"id":649,"href":"https:\/\/sirius10.net\/blog\/wordpress\/index.php\/wp-json\/wp\/v2\/posts\/628\/revisions\/649"}],"wp:attachment":[{"href":"https:\/\/sirius10.net\/blog\/wordpress\/index.php\/wp-json\/wp\/v2\/media?parent=628"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sirius10.net\/blog\/wordpress\/index.php\/wp-json\/wp\/v2\/categories?post=628"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sirius10.net\/blog\/wordpress\/index.php\/wp-json\/wp\/v2\/tags?post=628"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}