{"id":8535,"date":"2013-12-13T03:08:55","date_gmt":"2013-12-13T03:08:55","guid":{"rendered":"http:\/\/zerokidz.com\/ideas\/?p=8535"},"modified":"2014-06-24T20:47:37","modified_gmt":"2014-06-25T00:47:37","slug":"rtty-encoding-and-decoding-in-max","status":"publish","type":"post","link":"https:\/\/reactivemusic.net\/?p=8535","title":{"rendered":"RTTY encoding and decoding in Max"},"content":{"rendered":"<h5>notes<\/h5>\n<p>Today I was able to get an AFSK (audio frequency shift keying) system running in Max &#8211; sort of &#8211; It encodes text into ASCII bits and decodes the signal back into text &#8211; with a clock set at around 30ms (32 bits\/second) &#8211; but there is no clock synchronization yet. Or stop bits, etc., The patch just uses the transmitter clock to sync the receiver (cheating)<\/p>\n<p>Listen to an example of the word &#8216;hello&#8217; at 32 bits\/sec<\/p>\n\t<audio id=\"wp_mep_1\"      controls=\"controls\" preload=\"none\"  >\r\n\t\t\r\n\t\t<source src=\"https:\/\/reactivemusic.net\/wp-content\/uploads\/2013\/12\/fskhello.mp3\" type=\"audio\/mp3\" \/>\r\n\t\t\r\n\t\t\r\n\t\t\r\n\t\t\r\n\t\t\r\n\t<\/audio>\r\n<script type=\"text\/javascript\">\r\njQuery(document).ready(function($) {\r\n\t$('#wp_mep_1').mediaelementplayer({\r\n\t\tm:1\r\n\t\t\r\n\t\t,features: ['playpause','current','progress','duration','volume','tracks','fullscreen']\r\n\t\t,audioWidth:400,audioHeight:30\r\n\t});\r\n});\r\n<\/script>\r\n\n<p>local file is in max teaching examples\/rtty-sim5.maxpat<\/p>\n<p>Next step will be to get receiver sync happening &#8211; then make it conform to RTTY standard &#8211; probably a few days effort for this, but at least this is a proof of concept.<\/p>\n<p>The synchronization may need to happen at the sample level (gen~) because it requires finding the beginning and end of bits &#8211; in order to set the clock pulses accurately.<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>notes Today I was able to get an AFSK (audio frequency shift keying) system running in Max &#8211; sort of &#8211; It encodes text into ASCII bits and decodes the signal back into text &#8211; with a clock set at around 30ms (32 bits\/second) &#8211; but there is no clock synchronization yet. Or stop bits, &hellip; <\/p>\n<p class=\"link-more\"><a href=\"https:\/\/reactivemusic.net\/?p=8535\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;RTTY encoding and decoding in Max&#8221;<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_coblocks_attr":"","_coblocks_dimensions":"","_coblocks_responsive_height":"","_coblocks_accordion_ie_support":"","footnotes":""},"categories":[230,28],"tags":[296,190,57],"class_list":["post-8535","post","type-post","status-publish","format-standard","hentry","category-development","category-maxmsp","tag-notebook","tag-portfolio","tag-radio"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>RTTY encoding and decoding in Max - reactive music<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/reactivemusic.net\/?p=8535\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"RTTY encoding and decoding in Max - reactive music\" \/>\n<meta property=\"og:description\" content=\"notes Today I was able to get an AFSK (audio frequency shift keying) system running in Max &#8211; sort of &#8211; It encodes text into ASCII bits and decodes the signal back into text &#8211; with a clock set at around 30ms (32 bits\/second) &#8211; but there is no clock synchronization yet. Or stop bits, &hellip; Continue reading &quot;RTTY encoding and decoding in Max&quot;\" \/>\n<meta property=\"og:url\" content=\"https:\/\/reactivemusic.net\/?p=8535\" \/>\n<meta property=\"og:site_name\" content=\"reactive music\" \/>\n<meta property=\"article:published_time\" content=\"2013-12-13T03:08:55+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2014-06-25T00:47:37+00:00\" \/>\n<meta name=\"author\" content=\"Tom Zicarelli\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Tom Zicarelli\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/reactivemusic.net\\\/?p=8535#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/reactivemusic.net\\\/?p=8535\"},\"author\":{\"name\":\"Tom Zicarelli\",\"@id\":\"https:\\\/\\\/reactivemusic.net\\\/#\\\/schema\\\/person\\\/56224d281582df7e5518e037ca63e571\"},\"headline\":\"RTTY encoding and decoding in Max\",\"datePublished\":\"2013-12-13T03:08:55+00:00\",\"dateModified\":\"2014-06-25T00:47:37+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/reactivemusic.net\\\/?p=8535\"},\"wordCount\":169,\"keywords\":[\"notebook\",\"portfolio\",\"radio\"],\"articleSection\":[\"development\",\"Max\\\/MSP\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/reactivemusic.net\\\/?p=8535\",\"url\":\"https:\\\/\\\/reactivemusic.net\\\/?p=8535\",\"name\":\"RTTY encoding and decoding in Max - reactive music\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/reactivemusic.net\\\/#website\"},\"datePublished\":\"2013-12-13T03:08:55+00:00\",\"dateModified\":\"2014-06-25T00:47:37+00:00\",\"author\":{\"@id\":\"https:\\\/\\\/reactivemusic.net\\\/#\\\/schema\\\/person\\\/56224d281582df7e5518e037ca63e571\"},\"breadcrumb\":{\"@id\":\"https:\\\/\\\/reactivemusic.net\\\/?p=8535#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/reactivemusic.net\\\/?p=8535\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/reactivemusic.net\\\/?p=8535#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/reactivemusic.net\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"RTTY encoding and decoding in Max\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/reactivemusic.net\\\/#website\",\"url\":\"https:\\\/\\\/reactivemusic.net\\\/\",\"name\":\"reactive music\",\"description\":\"\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/reactivemusic.net\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/reactivemusic.net\\\/#\\\/schema\\\/person\\\/56224d281582df7e5518e037ca63e571\",\"name\":\"Tom Zicarelli\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/0da58cf21a2707dd335b204b8ed3cd9194dcbf9d9814ac5d71195a65c76c8a72?s=96&d=mm&r=g\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/0da58cf21a2707dd335b204b8ed3cd9194dcbf9d9814ac5d71195a65c76c8a72?s=96&d=mm&r=g\",\"contentUrl\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/0da58cf21a2707dd335b204b8ed3cd9194dcbf9d9814ac5d71195a65c76c8a72?s=96&d=mm&r=g\",\"caption\":\"Tom Zicarelli\"},\"sameAs\":[\"http:\\\/\\\/tomzicarelli.com\"],\"url\":\"https:\\\/\\\/reactivemusic.net\\\/?author=2\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"RTTY encoding and decoding in Max - reactive music","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/reactivemusic.net\/?p=8535","og_locale":"en_US","og_type":"article","og_title":"RTTY encoding and decoding in Max - reactive music","og_description":"notes Today I was able to get an AFSK (audio frequency shift keying) system running in Max &#8211; sort of &#8211; It encodes text into ASCII bits and decodes the signal back into text &#8211; with a clock set at around 30ms (32 bits\/second) &#8211; but there is no clock synchronization yet. 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