{"id":8387,"date":"2013-12-04T23:37:56","date_gmt":"2013-12-04T23:37:56","guid":{"rendered":"http:\/\/zerokidz.com\/ideas\/?p=8387"},"modified":"2014-06-13T23:33:18","modified_gmt":"2014-06-14T03:33:18","slug":"ep-4xx13-dsp-%e2%80%93-week-13","status":"publish","type":"post","link":"https:\/\/reactivemusic.net\/?p=8387","title":{"rendered":"ep-4xx13 DSP \u2013 week 13"},"content":{"rendered":"<h3>Signal processing with radio<\/h3>\n<ul>\n<li>unintended interactions<\/li>\n<li>using the wrong tools<\/li>\n<li>measuring the invisible<\/li>\n<li>antennas<\/li>\n<li>propagation is frequency dependent<\/li>\n<li>Extreme frequencies, negative frequencies?<\/li>\n<\/ul>\n<h3>links<\/h3>\n<ul>\n<li>A simple arduino AM transmitter\u00a0<a href=\"https:\/\/reactivemusic.net\/?p=4450\">https:\/\/reactivemusic.net\/?p=4450<\/a><\/li>\n<li>Software defined radio in Max\u00a0<a href=\"http:\/\/zerokidz.com\/radio\/Home.html\">http:\/\/zerokidz.com\/radio<\/a>\u00a0(The user guide <a href=\"gen-fm-detector2.maxpat pid-mrmapes2.maxpat phaselockedloop-skrasms.maxpat pid.js modem.maxpat\">http:\/\/zerokidz.com\/radio\/docs\/maxsdr5.pdf<\/a>\u00a0and Max tutorials provide a basic introduction to working with radio signals in the audio domain.<\/li>\n<li>rtl-sdr &#8211; inexpensive software defined radio\n<ul>\n<li>information\u00a0<a href=\"http:\/\/sdr.osmocom.org\/trac\/wiki\/rtl-sdr\">http:\/\/sdr.osmocom.org\/trac\/wiki\/rtl-sdr<\/a><\/li>\n<li>installation\u00a0<a href=\"https:\/\/reactivemusic.net\/?p=8360\">https:\/\/reactivemusic.net\/?p=8360<\/a><\/li>\n<li>sub-reddit\u00a0<a href=\"http:\/\/sl.reddit.com\/r\/RTLSDR\/\">http:\/\/sl.reddit.com\/r\/RTLSDR\/<\/a><\/li>\n<\/ul>\n<\/li>\n<li>the noise floor:\u00a0Noise Floor: Exploring the world of unintentional radio emissions by Melissa Elliott:\u00a0<a href=\"http:\/\/www.youtube.com\/watch?v=5N1C3WB8c0o\">http:\/\/www.youtube.com\/watch?v=5N1C3WB8c0o<\/a><\/li>\n<\/ul>\n<h3>Demodulation of signals in Max<\/h3>\n<p>These patches are works in progress. Please contact me if you have questions about how they work.<\/p>\n<ul>\n<li>Modem.maxpat &#8211; modulation\/demodulation<\/li>\n<li>gen-fm-detector2.maxpat &#8211; a phase locked loop in gen~. Use with modem.maxpat &#8211; but turn FM modulation level down to about 250.<\/li>\n<li>pid-mrmapes2.maxpat &#8211; Using a PID controller to control oscillators<\/li>\n<\/ul>\n<div>[wpdm_file id=15]<\/div>\n<div><\/div>\n<div><\/div>\n<h4>Frequencies and modes<\/h4>\n<ul>\n<li>Arduino transmitter: AM 1330 kHz.<\/li>\n<li>Wireless micorophone: Wide FM 676 mHz.<\/li>\n<li>Cordless phone: Narrow FM 926 mHz.<\/li>\n<li>Cell phone: Digitally encrypted trunking FM 836 mHz.<\/li>\n<li>Macbook trackpad: Noise 5 mHz.<\/li>\n<li>Macbook AC adapter: Noise 600-1400 kHz.<\/li>\n<li>Wifi: Digitally encoded PCM 2.4 gHz.<\/li>\n<li>FM broadcast band: Wide FM 89.7 mHz<\/li>\n<li>TV audio\u00a0600 mhz\/660 mhz FMW<\/li>\n<\/ul>\n<div><\/div>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Signal processing with radio unintended interactions using the wrong tools measuring the invisible antennas propagation is frequency dependent Extreme frequencies, negative frequencies? links A simple arduino AM transmitter\u00a0https:\/\/reactivemusic.net\/?p=4450 Software defined radio in Max\u00a0http:\/\/zerokidz.com\/radio\u00a0(The user guide http:\/\/zerokidz.com\/radio\/docs\/maxsdr5.pdf\u00a0and Max tutorials provide a basic introduction to working with radio signals in the audio domain. rtl-sdr &#8211; inexpensive software &hellip; <\/p>\n<p class=\"link-more\"><a href=\"https:\/\/reactivemusic.net\/?p=8387\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;ep-4xx13 DSP \u2013 week 13&#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":[21,28],"tags":[190,57,13],"class_list":["post-8387","post","type-post","status-publish","format-standard","hentry","category-dsp","category-maxmsp","tag-portfolio","tag-radio","tag-teaching"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>ep-4xx13 DSP \u2013 week 13 - 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=8387\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"ep-4xx13 DSP \u2013 week 13 - reactive music\" \/>\n<meta property=\"og:description\" content=\"Signal processing with radio unintended interactions using the wrong tools measuring the invisible antennas propagation is frequency dependent Extreme frequencies, negative frequencies? links A simple arduino AM transmitter\u00a0https:\/\/reactivemusic.net\/?p=4450 Software defined radio in Max\u00a0http:\/\/zerokidz.com\/radio\u00a0(The user guide http:\/\/zerokidz.com\/radio\/docs\/maxsdr5.pdf\u00a0and Max tutorials provide a basic introduction to working with radio signals in the audio domain. rtl-sdr &#8211; inexpensive software &hellip; Continue reading &quot;ep-4xx13 DSP \u2013 week 13&quot;\" \/>\n<meta property=\"og:url\" content=\"https:\/\/reactivemusic.net\/?p=8387\" \/>\n<meta property=\"og:site_name\" content=\"reactive music\" \/>\n<meta property=\"article:published_time\" content=\"2013-12-04T23:37:56+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2014-06-14T03:33:18+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=8387#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/reactivemusic.net\\\/?p=8387\"},\"author\":{\"name\":\"Tom Zicarelli\",\"@id\":\"https:\\\/\\\/reactivemusic.net\\\/#\\\/schema\\\/person\\\/56224d281582df7e5518e037ca63e571\"},\"headline\":\"ep-4xx13 DSP \u2013 week 13\",\"datePublished\":\"2013-12-04T23:37:56+00:00\",\"dateModified\":\"2014-06-14T03:33:18+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/reactivemusic.net\\\/?p=8387\"},\"wordCount\":236,\"keywords\":[\"portfolio\",\"radio\",\"teaching\"],\"articleSection\":[\"DSP\",\"Max\\\/MSP\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/reactivemusic.net\\\/?p=8387\",\"url\":\"https:\\\/\\\/reactivemusic.net\\\/?p=8387\",\"name\":\"ep-4xx13 DSP \u2013 week 13 - reactive music\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/reactivemusic.net\\\/#website\"},\"datePublished\":\"2013-12-04T23:37:56+00:00\",\"dateModified\":\"2014-06-14T03:33:18+00:00\",\"author\":{\"@id\":\"https:\\\/\\\/reactivemusic.net\\\/#\\\/schema\\\/person\\\/56224d281582df7e5518e037ca63e571\"},\"breadcrumb\":{\"@id\":\"https:\\\/\\\/reactivemusic.net\\\/?p=8387#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/reactivemusic.net\\\/?p=8387\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/reactivemusic.net\\\/?p=8387#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/reactivemusic.net\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"ep-4xx13 DSP \u2013 week 13\"}]},{\"@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":"ep-4xx13 DSP \u2013 week 13 - 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=8387","og_locale":"en_US","og_type":"article","og_title":"ep-4xx13 DSP \u2013 week 13 - reactive music","og_description":"Signal processing with radio unintended interactions using the wrong tools measuring the invisible antennas propagation is frequency dependent Extreme frequencies, negative frequencies? 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