{"id":2033,"date":"2024-03-21T16:53:01","date_gmt":"2024-03-21T07:53:01","guid":{"rendered":"https:\/\/www.rocher.kyoto.jp\/arbr\/?p=2033"},"modified":"2024-03-21T16:53:01","modified_gmt":"2024-03-21T07:53:01","slug":"m5unified_stackchan%e3%82%92%e5%8f%82%e8%80%83%e3%81%ab%e3%81%97%e3%81%9f%e9%9a%9b%e3%81%ae%e3%83%a1%e3%83%a2","status":"publish","type":"post","link":"https:\/\/www.rocher.kyoto.jp\/arbr\/?p=2033","title":{"rendered":"M5Unified_StackChan\u3092\u53c2\u8003\u306b\u3057\u305f\u969b\u306e\u30e1\u30e2"},"content":{"rendered":"\n<p><a href=\"https:\/\/www.rocher.kyoto.jp\/arbr\/?p=1958\">MP3_with_ESP8266Audio.ino<\/a>\u3092\u53c2\u8003\u306b\u97f3\u58f0\u51fa\u529b\u3092\u3057\u3066\u3044\u305f\u304c\u97f3\u304c\u3068\u3093\u3060\u308a\u753b\u9762\u306b\u30ce\u30a4\u30ba\uff1f\u304c\u5165\u3063\u305f\u308a\u3068\u3057\u3066\u3044\u305f\u3002\u30c4\u30a4\u30c3\u30bf\u30fc\u3067\u545f\u3044\u305f\u3089\u30bf\u30ab\u30f2\u3055\u3093\uff08@mongonta555\uff09\u304b\u3089\u53c2\u8003\u60c5\u5831\u3092\u6559\u3048\u3066\u3082\u3089\u3063\u305f\u3002<\/p>\n\n\n\n<p>\u3053\u3061\u3089\u3067\u97f3\u304c\u51fa\u308b\u3088\u3046\u306b\u306a\u3063\u305f\u3002\u30ea\u30f3\u30af\u5148\u30ec\u30dd\u30b8\u30c8\u30ea\u306e\u30e1\u30e2\u66f8\u304d\u3092\u6b8b\u3059\u3002\u306a\u304a\u3001M5Unified_StackChan\u306b\u306f\u3042\u308b\u304c\u8a66\u3057\u3066\u3044\u306a\u3044\u3082\u306e\u3082\u3042\u308b\u3002<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-rich is-provider-twitter wp-block-embed-twitter\"><div class=\"wp-block-embed__wrapper\">\n<blockquote class=\"twitter-tweet\" data-width=\"550\" data-dnt=\"true\"><p lang=\"ja\" dir=\"ltr\"><a href=\"https:\/\/twitter.com\/hashtag\/%EF%BD%BD%EF%BE%80%EF%BD%AF%EF%BD%B8%EF%BE%81%EF%BD%AC%EF%BE%9D?src=hash&amp;ref_src=twsrc%5Etfw\">#\uff7d\uff80\uff6f\uff78\uff81\uff6c\uff9d<\/a> \u3067MP3\u30d5\u30a1\u30a4\u30eb\u518d\u751f<br>\u3053\u3061\u3089\u3092\u53c2\u8003\u306b\u3057\u3066\u3084\u3063\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<br>\uff0a README\u76f4\u3063\u3066\u307e\u305b\u3093\u304cmp3\u7528\u3067\u3059\u3002<a href=\"https:\/\/twitter.com\/hashtag\/M5Stack?src=hash&amp;ref_src=twsrc%5Etfw\">#M5Stack<\/a> <a href=\"https:\/\/t.co\/MOGRp4h7c9\">https:\/\/t.co\/MOGRp4h7c9<\/a><\/p>&mdash; \u30bf\u30ab\u30f2(Takawo) (@mongonta555) <a href=\"https:\/\/twitter.com\/mongonta555\/status\/1768974850977394995?ref_src=twsrc%5Etfw\">March 16, 2024<\/a><\/blockquote><script async src=\"https:\/\/platform.twitter.com\/widgets.js\" charset=\"utf-8\"><\/script>\n<\/div><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">\u5bfe\u8c61\u97f3\u58f0\u30d5\u30a9\u30fc\u30de\u30c3\u30c8<\/h2>\n\n\n\n<p>readme\u306b\u306fwav\u3068\u306a\u3063\u3066\u3044\u308b\u3051\u3069mp3\u7528<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u30d0\u30c3\u30d5\u30a1\u51e6\u7406<\/h2>\n\n\n\n<p>MP3_with_ESP8266Audio\u306b\u306f\u306a\u304b\u3063\u305fbuffer\u51e6\u7406\u304c\u5165\u3063\u3066\u3044\u308b\u3002\u4e0b\u306e\u3042\u305f\u308a<\/p>\n\n\n\n<pre class=\"wp-block-code has-white-color has-dark-gray-background-color has-text-color has-background has-link-color wp-elements-e394e4af31574d9e7918a5b087a95101\"><code>#include &lt;AudioFileSourceBuffer.h>\n\nstatic AudioFileSourceBuffer *buff = nullptr;\r\nconst int preallocateBufferSize = 50*1024;\n\nwav.begin(buff, &amp;out);\n\npreallocateBuffer = (uint8_t *)malloc(preallocateBufferSize);<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">\u97f3\u58f0\u30d5\u30a1\u30a4\u30eb\u306e\u30b5\u30f3\u30d7\u30ea\u30f3\u30b0\u30ec\u30fc\u30c8<\/h2>\n\n\n\n<p>readme\u306b\u306f\u201dwav\u30d5\u30a1\u30a4\u30eb\u306e\u30b5\u30f3\u30d7\u30ea\u30f3\u30b0\u5468\u6ce2\u6570\u306f16khz\u304b24khz\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u201d\u3068\u3042\u308b\u3002ffmpeg\u306716khz\u304b24khz\u306b\u5909\u63db\u3057\u305f\u304b\u3063\u305f\u304c\u3001<strong><s>26khz\u304c\u751f\u6210\u3055\u308c\u3066\u76f4\u3057\u65b9\u304c\u308f\u304b\u3089\u306a\u304b\u3063\u305f\u306e\u306726khz\u3092\u53d7\u3051\u5165\u308c\u3066\u8a66\u9a13<\/s>\u3002\u30b5\u30f3\u30d7\u30ea\u30f3\u30b0\u30ec\u30fc\u30c8\u3058\u3083\u306a\u304f\u3066\u30d3\u30c3\u30c8\u30ec\u30fc\u30c8\u304c26kbps\u3060\u3063\u305f\u3002<\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u30b9\u30d4\u30fc\u30ab\u30fc\u306e\u30b3\u30f3\u30d5\u30a3\u30b0\u6307\u5b9a<\/h2>\n\n\n\n<p>\u4e0b\u306e\u3088\u3046\u306b\u3044\u304f\u3064\u304b\u6307\u5b9a\u304c\u5165\u3063\u3066\u3044\u308b\u3002<\/p>\n\n\n\n<p>sample_rate \u306f\u51fa\u6765\u4e0a\u304c\u3063\u305f\u30d5\u30a1\u30a4\u30eb\u306b\u5408\u308f\u305b\u3066\u307f\u305f\u3002<\/p>\n\n\n\n<p>task_priority\u306f\u540c\u3058\u30b3\u30a2\u3067\u306e\u51e6\u7406\u512a\u5148\u9806\u4f4d\u3002\u6570\u6642\u5927\u304d\u3044\u6570\u304c\u512a\u5148\u9806\u4f4d\u9ad8\u304f\u305f\u3057\u304b23\u304c\u6700\u5927\u5024\u3002m5avater\u306e\u4e2d\u30672\u304c\u4f7f\u308f\u308c\u3066\u3044\u308b\u306f\u305a\u306a\u306e\u3067\u4f7f\u3063\u3066\u3044\u308b\u30e9\u30a4\u30d6\u30e9\u30ea\u306e\u7bc4\u56f2\u3067\u306f3\u306b\u3057\u3068\u3051\u3070\u6700\u512a\u5148\u306e\u306f\u305a\u3002<\/p>\n\n\n\n<p>dma_buf_count \/dma_buf_len \u306f\u3088\u304f\u308f\u304b\u3063\u3066\u3044\u306a\u3044\u3002<\/p>\n\n\n\n<p>task_pinned_core \u306f\u51e6\u7406\u3092\u3055\u305b\u308bCPU\u30b3\u30a2\u306e\u6307\u5b9a\uff08PRO_APP_NUM\u30c7\u30d5\u30a9\u30eb\u30c8\u3067\u3001\u3082\u3046\u4e00\u500b\u304cPRO_APP_NUM\uff09\u3002M5Unified_StackChan\u3067\u306fPRO_CPU_NUM\u3092\u4f7f\u3063\u3066\u3044\u305f\u304c\u30c7\u30d5\u30a9\u30eb\u30c8\u3067\u3082\u97f3\u8cea\u9055\u3044\u304c\u5206\u304b\u3089\u306a\u304b\u3063\u305f\u306e\u3067\u30c7\u30d5\u30a9\u30eb\u30c8\u306b\u623b\u3057\u3066\u3042\u308b\u3002<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">  auto spk_cfg = M5.Speaker.config();\r\n  spk_cfg.sample_rate = 26000;\r\n  spk_cfg.task_priority = 23;\r\n  spk_cfg.dma_buf_count = 20;\r\n  spk_cfg.dma_buf_len = 128;\r\n  \/\/spk_cfg.task_pinned_core = PRO_CPU_NUM;\r\n  M5.Speaker.config(spk_cfg);<\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">\u30d5\u30a1\u30a4\u30eb\u30af\u30ed\u30fc\u30ba\u51e6\u7406<\/h2>\n\n\n\n<p>mp3.stop()\u306e\u4e2d\u3067\u3082out\u3084file\u306e\u30af\u30ed\u30fc\u30ba\u304c\u547c\u3070\u308c\u3066\u3044\u308b\u306e\u3067\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u7684\u306b\u306ffile\u3084out\u306e\u30af\u30ed\u30fc\u30ba\u51e6\u7406\u306f\u3044\u3089\u306a\u3044\u306f\u305a\u3002\u305f\u3060\u3057\u3001\u3069\u3053\u304b\u306e\u30b5\u30a4\u30c8\uff08\u30e1\u30e2\u3063\u3066\u306a\u304b\u3063\u305f\u3089\u51fa\u5178\u63a2\u305b\u306a\u304f\u306a\u3063\u305f\uff09\u3067\u4e0b\u307f\u305f\u3044\u306a\u66f8\u304d\u65b9\u306e\u65b9\u304c\u30b9\u30d4\u30fc\u30ab\u30fc\u306e\u6700\u521d\u306e\u97f3\u304c\u5c0f\u3055\u304f\u306a\u308b\u307f\u305f\u3044\u306a\u3053\u3068\u304c\u66f8\u304b\u308c\u3066\u3044\u305f\u306e\u3067\u305d\u3061\u3089\u306b\u5408\u308f\u305b\u305f\u3002\u3061\u306a\u307f\u306b\u3001\u30b9\u30d4\u30fc\u30ab\u30fc\u306e\u6700\u521d\u306e\u97f3\u3068\u306f\u30b9\u30d4\u30fc\u30ab\u30fc\u306b\u96fb\u6e90\u304c\u5165\u308b\u6642\u306e\u30dc\u30c3\u307f\u305f\u3044\u306a\u97f3\u3002\u305d\u306e\u9055\u3044\u304c\u5206\u304b\u3089\u306a\u304b\u3063\u305f\u304c\u3001\u3053\u3060\u308f\u308b\u3068\u3053\u308d\u3067\u3082\u306a\u3044\u306e\u3067\u5408\u308f\u305b\u3066\u304a\u304f\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code has-white-color has-dark-gray-background-color has-text-color has-background has-link-color wp-elements-ba510b6a00ecd9b75c0286b12c2057f6\"><code>  out.stop();\r\n  mp3.stop();\r\n  file->close();\r\n  delete file;\r\n  file = nullptr;<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">\u88dc\u8db3<\/h2>\n\n\n\n<p>\u6bd4\u8f03\u3092\u3057\u3066\u3044\u306a\u3044\u3051\u3069\u3082\u3068\u3082\u3068\u4f7f\u3063\u3066\u3044\u305f\u306e\u304c160kbps\u306e3\u5206\u3068\u3044\u3046\u30d5\u30a1\u30a4\u30eb\u3060\u3063\u305f\u306e\u3067\u305d\u3044\u3064\u306e\u5f71\u97ff\u304c\u5927\u304d\u3044\u6c17\u304c\u3057\u306a\u304f\u3082\u306a\u3044\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>MP3_with_ESP8266Audio.ino\u3092\u53c2\u8003\u306b\u97f3\u58f0\u51fa\u529b\u3092\u3057\u3066\u3044\u305f\u304c\u97f3\u304c\u3068\u3093\u3060\u308a\u753b\u9762\u306b\u30ce\u30a4\u30ba\uff1f\u304c\u5165\u3063\u305f\u308a\u3068\u3057\u3066\u3044\u305f\u3002\u30c4\u30a4\u30c3\u30bf\u30fc\u3067\u545f\u3044\u305f\u3089\u30bf\u30ab\u30f2\u3055\u3093\uff08@mongonta555\uff09\u304b\u3089\u53c2\u8003\u60c5\u5831\u3092\u6559\u3048\u3066\u3082\u3089\u3063\u305f\u3002 \u3053\u3061 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[117],"tags":[135,134],"class_list":["post-2033","post","type-post","status-publish","format-standard","hentry","category-117","tag-m5stack","tag-m5unified"],"_links":{"self":[{"href":"https:\/\/www.rocher.kyoto.jp\/arbr\/index.php?rest_route=\/wp\/v2\/posts\/2033","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.rocher.kyoto.jp\/arbr\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.rocher.kyoto.jp\/arbr\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.rocher.kyoto.jp\/arbr\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.rocher.kyoto.jp\/arbr\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2033"}],"version-history":[{"count":1,"href":"https:\/\/www.rocher.kyoto.jp\/arbr\/index.php?rest_route=\/wp\/v2\/posts\/2033\/revisions"}],"predecessor-version":[{"id":2034,"href":"https:\/\/www.rocher.kyoto.jp\/arbr\/index.php?rest_route=\/wp\/v2\/posts\/2033\/revisions\/2034"}],"wp:attachment":[{"href":"https:\/\/www.rocher.kyoto.jp\/arbr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2033"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.rocher.kyoto.jp\/arbr\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2033"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.rocher.kyoto.jp\/arbr\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2033"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}