{"id":509,"date":"2018-08-13T21:14:13","date_gmt":"2018-08-13T13:14:13","guid":{"rendered":"http:\/\/www.tastestars.com\/?p=509"},"modified":"2018-08-13T21:15:38","modified_gmt":"2018-08-13T13:15:38","slug":"01-4","status":"publish","type":"post","link":"https:\/\/tastestars.com\/index.php\/2018\/08\/13\/01-4\/","title":{"rendered":"\u3010MIDI\u3011\u518d\u63a2\u0b87w\u0b87"},"content":{"rendered":"<p>\u770bmidi\u5185\u5bb9\u8ddf\u7f51\u7edc\u6293\u5305\u540e\u5206\u6790\u4e00\u6837\uff0c\u5934\u5f88\u660f\uff0c\u968f\u4fbf\u5199\u4e1c\u897f\u3002<\/p>\n<pre class=\"lang:default decode:true \" title=\"MIDI format\" >0x4D , 0x54 , 0x68 , 0x64 ,  \/\/ \"MThd\"\n 0x00 , 0x00 , 0x00 , 0x06 ,  \/\/ \u5934\u5757\u957f\u5ea6\uff1a\u4e0d\u5305\u62ec\u524d4\u5b57\u8282\u548c\u672c4\u5b57\u8282\n 0x00 , 0x01 , \/\/ \u683c\u5f0f\uff1b1-\u591a\u8f68\uff0c\u540c\u6b65\n 0x00 , 0x03 , \/\/ \u8f68\u9053\u6570 = 3\n 0x01 , 0xE0 , \/\/ \u57fa\u672c\u65f6\u95f4\u683c\u5f0f 0x01E0 = 480;\n \n 0x4D , 0x54 , 0x72 , 0x6B ,  \/\/ \"MTrk\"\n 0x00 , 0x00 , 0x00 , 0x15 ,  \/\/ 21 \u8be5\u89c4\u957f\u5ea6\uff1a\u4e0d\u5305\u62ec\u524d4\u5b57\u8282\u548c\u672c4\u5b57\u8282\n 0x00 , \/\/ \u65f6\u95f4\u5dee\n 0xFF , 0x58 , 0x04 , 0x04 , 0x02 , 0x18 , 0x08 , \/\/ \u5176\u4ed6\u529f\u80fd\u3001\u8282\u62cd\u3001\u957f\u5ea64\u3001\u5206\u5b504\u3001\u5206\u6bcd4\u3001\u8282\u62cd\u5668\u65f6\u949f24\u3001\u4e00\u4e2a\u56db\u5206\u97f3\u7b26\u5305\u542b\u768432\u5206\u97f3\u7b26\u7684\u4e2a\u65708\n 0x00 , \/\/ \u65f6\u95f4\u5dee\n 0xFF , 0x51 , 0x03 , 0x0C , 0x35 , 0x00 , \/\/ \u5176\u4ed6\u529f\u80fd\u3001\u901f\u5ea6\u3001\u957f\u5ea63\uff1a1\u4e2a\u56db\u5206\u97f3\u7b26\u7684\u5fae\u79d2\u6570800,000\n 0x84 , 0xE7 , 0x00 , \/\/ \u65f6\u95f4\u5dee\uff1a128^2*4+128*103+0 = 78720\n 0xFF , 0x2F , 0x00 ,  \/\/ \u97f3\u8f68\u7ed3\u675f\u6807\u5fd7\u3002\n \n 0x4D , 0x54 , 0x72 , 0x6B , \/\/ \"MTrk\"\n 0x00 , 0x00 , 0x09 , 0xC9 , \/\/ 2505 \u8be5\u89c4\u957f\u5ea6\uff1a\n 0x00 , \/\/ \u65f6\u95f4\u5dee\n 0xFF , 0x03 , 0x07 , \/\/ \u6b4c\u66f2\u6807\u9898\uff0c\u97f3\u8f68\u540d\u79f0\uff0c\u957f\u5ea67\n 0x54 , 0x72 , 0x61 , 0x63 , 0x6B , 0x20 , 0x31 , \/\/ \"Track 1\"\n 0x00 , \/\/ \u65f6\u95f4\u5dee\n 0xFF , 0x04 , 0x1F , \/\/ \u4e50\u5668\u540d\u79f0\uff0c\u957f\u5ea631,--\"Microsoft GS Wavetable SW Synth\"\n 0x4D , 0x69 , 0x63 , 0x72 , 0x6F , 0x73 , 0x6F , 0x66 , 0x74 , 0x20 , 0x47 , 0x53 , 0x20 , 0x57            \n , 0x61 , 0x76 , 0x65 , 0x74 , 0x61 , 0x62 , 0x6C , 0x65 , 0x20 , 0x53 , 0x57 , 0x20 , 0x53 , 0x79 , 0x6E , 0x74            \n , 0x68 , \n \n 0x00 , \/\/ \u65f6\u95f4\u5dee\n 0xB0 , 0x0A , 0x40 , \/\/ \u8c03\u6362\u63a7\u5236\uff0c\u63a7\u5236\u53f710(\u58f0\u50cf\u63a7\u5236\u5668)\uff0c(CAKEWALK\u9ed8\u8ba4\u503c\u662f64)\u65b0\u503c64\n \n 0x89 , 0x30 , \/\/ \u65f6\u95f4\u5dee=128*9+48=1200us\n 0x90 , 0x40 , 0x50 , \/\/ \u97f3\u7b26\u6253\u5f00\uff0c\u97f3\u7b26\u53f764\uff0c\u901f\u5ea680  (E5 : MI)\n \n 0x81 , 0x58 , \/\/ \u65f6\u95f4\u5dee=128*1+88=216us\n 0x80 , 0x40 , 0x40 , \/\/ \u97f3\u7b26\u5173\u95ed\uff0c\u97f3\u7b26\u53f764\uff0c\u901f\u5ea664  (E5 : MI)\n \n 0x18 , \/\/ \u65f6\u95f4\u5dee=24us\n 0x90 , 0x45 , 0x50 , \/\/ \u97f3\u7b26\u6253\u5f00\uff0c\u97f3\u7b26\u53f769\uff0c\u901f\u5ea680  (A5 : La)\n \n 0x81 , 0x58 , \/\/ \u65f6\u95f4\u5dee=128*1+88=216us\n 0x80 , 0x45 , 0x40 , \/\/ \u97f3\u7b26\u5173\u95ed\uff0c\u97f3\u7b26\u53f769\uff0c\u901f\u5ea664  (A5 : La)\n \n 0x18 , \n 0x90 , 0x47 , 0x50 , \/\/ \u97f3\u7b26\u6253\u5f00\uff0c\u97f3\u7b26\u53f771\uff0c\u901f\u5ea680  (B5 : Si)\n \n 0x81 , 0x58 , \/\/ \u65f6\u95f4\u5dee=128*1+88=216us\n 0x80 , 0x47 , 0x40 , \/\/ \u97f3\u7b26\u5173\u95ed\uff0c\u97f3\u7b26\u53f771\uff0c\u901f\u5ea664  (B5 : Si)\n \n 0x18 , \n 0xB0 , 0x40 , 0x7F , \/\/ \u8c03\u6362\u63a7\u5236\uff0c\u63a7\u5236\u53f764(\u5ef6\u97f3\u63a7\u5236\u5668)\uff0c\u65b0\u503c117\n \n 0x00 , \/\/ \u65f6\u95f4\u5dee\n 0x90 , 0x48 , 0x64 , \/\/ \u97f3\u7b26\u6253\u5f00\uff0c\u97f3\u7b26\u53f772\uff0c\u901f\u5ea6100 (C6 : Do)\n \n 0x00 , \/\/ \u65f6\u95f4\u5dee\n 0x90 , 0x45 , 0x50 , \/\/ \u97f3\u7b26\u6253\u5f00\uff0c\u97f3\u7b26\u53f769\uff0c\u901f\u5ea680 (A5 : La)\n \n 0x83 , 0x60 , \/\/ \u65f6\u95f4\u5dee=128*3+96=480us\n 0x80 , 0x48 , 0x40 , \/\/ \u97f3\u7b26\u5173\u95ed\uff0c\u97f3\u7b26\u53f772\uff0c\u901f\u5ea664 (C6 : Do)\n \n 0x00 , \/\/ \u65f6\u95f4\u5dee\n 0x80 , 0x45 , 0x40 , \/\/ \u97f3\u7b26\u5173\u95ed\uff0c\u97f3\u7b26\u53f769\uff0c\u901f\u5ea664  (A5 : La)\n \n 0x00 , \/\/ \u65f6\u95f4\u5dee\n 0x90 , 0x4A , 0x64 , \/\/ \u97f3\u7b26\u6253\u5f00\uff0c\u97f3\u7b26\u53f774\uff0c\u901f\u5ea6100  (D6 : RE)\n \n 0x81 , 0x70 , \/\/ \u65f6\u95f4\u5dee=128*1+102=230us\n 0x80 , 0x4A , 0x40 , \/\/ \u97f3\u7b26\u5173\u95ed\uff0c\u97f3\u7b26\u53f774\uff0c\u901f\u5ea664  (D6 : RE)\n \n 0x00 , \/\/ \u65f6\u95f4\u5dee\n 0x90 , 0x4C , 0x64 , \/\/ \u97f3\u7b26\u6253\u5f00\uff0c\u97f3\u7b26\u53f776\uff0c\u901f\u5ea6100  (E6 : MI)\n \n 0x81 , 0x70 , \/\/ \u65f6\u95f4\u5dee=128*1+102=230us\n 0x80 , 0x4C , 0x40 , \/\/ \u97f3\u7b26\u5173\u95ed\uff0c\u97f3\u7b26\u53f776\uff0c\u901f\u5ea6100  (E6 : MI)\n \n 0x00 ,  \n 0xB0 , 0x40 , 0x7F , \/\/ \u8c03\u6362\u63a7\u5236\uff0c\u63a7\u5236\u53f764(\u5ef6\u97f3\u63a7\u5236\u5668)\uff0c\u65b0\u503c117\n \n 0x00 , \n 0x90 , 0x4A , 0x64 , \/\/ \u97f3\u7b26\u6253\u5f00\uff0c\u97f3\u7b26\u53f774\uff0c\u901f\u5ea6100  (D6 : RE)<\/pre>\n<p>MIDI\u770b\u8d77\u6765\u662f\u8fd9\u6837\u7684\u4e1c\u897f\uff0c\u5b83\u672c\u8eab\u5c31\u662f\u7b80\u5355\u7684\u4e8c\u8fdb\u5236\u534f\u8bae\uff0c\u53ef\u4ee5\u65b9\u4fbf\u7684\u4e0e\u5408\u6210\u5668\u6216\u8005\u5176\u4ed6\u7535\u5b50\u97f3\u4e50\u8bbe\u5907\u8fdb\u884c\u901a\u4fe1\u3002\u6700\u5f00\u59cb\u662f\u9488\u5bf98\u4f4d\u5fae\u578b\u63a7\u5236\u5668\u6d89\u53ca\u7684\uff0c\u6bcf\u4e00\u4e2a\u97f3\u7b26\u90fd\u7531\u4e09\u4e2a\u5b57\u8282\u8868\u793a\uff0c\u4f8b\u5982<\/p>\n<p>92 3C 64<\/p>\n<p>92 &#8212; 9 == \u97f3\u7b26\u4fe1\u606f\u79cd\u7c7b<br \/>\n      2 == 2\u4e2a\u901a\u9053<\/p>\n<p>3C &#8212; \u97f3\u7b26 60 (\u4e2d\u592e C)<\/p>\n<p>64 &#8212; \u901f\u5ea6<\/p>\n<p>\u8fd9\u4e48\u770b\u8d77\u6765\u592a\u9ebb\u70e6\u4e86\uff0c\u4e0a\u6b21\u8bf4\u8fc7\u4e00\u4e9b\u5e93\u76f4\u63a5\u5c31\u53ef\u4ee5\u8f6c\u6362\u6210\u4eba\u5bb9\u6613\u7406\u89e3\u7684\u65b9\u5f0f\uff08mido\uff09<\/p>\n<pre class=\"lang:python decode:true \" title=\"mido-demo\" >import mido\nmsg = mido.Message('note_on', note=60)\nmid = mido.MidiFile('jesu.mid')\nfor i, track in enumerate(mid.tracks):\n    print('Track {}: {}'.format(i, track.name))\n    for msg in track:\n        print(msg)<\/pre>\n<p><img loading=\"lazy\" decoding=\"async\" data-attachment-id=\"510\" data-permalink=\"https:\/\/tastestars.com\/index.php\/2018\/08\/13\/01-4\/%e6%8d%95%e8%8e%b7-8\/\" data-orig-file=\"https:\/\/tastestars.com\/wp-content\/uploads\/2018\/08\/\u6355\u83b7.png\" data-orig-size=\"429,394\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"\u6355\u83b7\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/tastestars.com\/wp-content\/uploads\/2018\/08\/\u6355\u83b7-300x276.png\" data-large-file=\"https:\/\/tastestars.com\/wp-content\/uploads\/2018\/08\/\u6355\u83b7.png\" src=\"http:\/\/www.tastestars.com\/wp-content\/uploads\/2018\/08\/\u6355\u83b7.png\" alt=\"\" width=\"429\" height=\"394\" class=\"aligncenter size-full wp-image-510\" srcset=\"https:\/\/tastestars.com\/wp-content\/uploads\/2018\/08\/\u6355\u83b7.png 429w, https:\/\/tastestars.com\/wp-content\/uploads\/2018\/08\/\u6355\u83b7-300x276.png 300w\" sizes=\"auto, (max-width: 429px) 100vw, 429px\" \/><\/p>\n<p>\u662f\u4e0d\u662f\u5f88\u5bb9\u6613\u7406\u89e3\u4e86\u5462\uff0cnote\uff1a\u97f3\u9ad8\uff08MIDI\u683c\u5f0f\u91cc\u9762\u7684\uff09\uff0cvelocity:\u901f\u5ea6\uff0ctime:\u65f6\u503c\u3002<br \/>\n\u8fd8\u6709\u4e00\u4e9b\u5f00\u5934\u7ed3\u5c3e\u7684\u6807\u8bc6\u4e5f\u80fd\u65b9\u4fbf\u5730\u770b\u51fa\u6765\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u770bmidi\u5185\u5bb9\u8ddf\u7f51\u7edc\u6293\u5305\u540e\u5206\u6790\u4e00\u6837\uff0c\u5934\u5f88\u660f\uff0c\u968f\u4fbf\u5199\u4e1c\u897f\u3002 0x4D , 0x54 , 0x68 , 0x64  [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[1],"tags":[],"class_list":["post-509","post","type-post","status-publish","format-standard","hentry","category-python"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p9Hs6X-8d","_links":{"self":[{"href":"https:\/\/tastestars.com\/index.php\/wp-json\/wp\/v2\/posts\/509","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/tastestars.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/tastestars.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/tastestars.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/tastestars.com\/index.php\/wp-json\/wp\/v2\/comments?post=509"}],"version-history":[{"count":3,"href":"https:\/\/tastestars.com\/index.php\/wp-json\/wp\/v2\/posts\/509\/revisions"}],"predecessor-version":[{"id":513,"href":"https:\/\/tastestars.com\/index.php\/wp-json\/wp\/v2\/posts\/509\/revisions\/513"}],"wp:attachment":[{"href":"https:\/\/tastestars.com\/index.php\/wp-json\/wp\/v2\/media?parent=509"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tastestars.com\/index.php\/wp-json\/wp\/v2\/categories?post=509"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tastestars.com\/index.php\/wp-json\/wp\/v2\/tags?post=509"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}