{"id":16658,"date":"2017-03-29T13:37:12","date_gmt":"2017-03-29T12:37:12","guid":{"rendered":"http:\/\/www.recantha.co.uk\/blog\/?p=16658"},"modified":"2017-03-29T13:37:12","modified_gmt":"2017-03-29T12:37:12","slug":"ultrasonic-sensors-and-fluidsynth-used-together-to-create-a-raspberry-pi-powered-synthesizer","status":"publish","type":"post","link":"https:\/\/www.recantha.co.uk\/blog\/?p=16658","title":{"rendered":"Ultrasonic sensors and FluidSynth used together to create a Raspberry Pi-powered synthesizer"},"content":{"rendered":"<p><a href=\"https:\/\/i0.wp.com\/www.recantha.co.uk\/blog\/wp-content\/uploads\/2017\/03\/ultrasonic_fluidsynth.jpg?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-16659\" src=\"https:\/\/i0.wp.com\/www.recantha.co.uk\/blog\/wp-content\/uploads\/2017\/03\/ultrasonic_fluidsynth.jpg?resize=560%2C312&#038;ssl=1\" alt=\"\" width=\"560\" height=\"312\" srcset=\"https:\/\/i0.wp.com\/www.recantha.co.uk\/blog\/wp-content\/uploads\/2017\/03\/ultrasonic_fluidsynth.jpg?w=1269&amp;ssl=1 1269w, https:\/\/i0.wp.com\/www.recantha.co.uk\/blog\/wp-content\/uploads\/2017\/03\/ultrasonic_fluidsynth.jpg?resize=300%2C167&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.recantha.co.uk\/blog\/wp-content\/uploads\/2017\/03\/ultrasonic_fluidsynth.jpg?resize=768%2C428&amp;ssl=1 768w, https:\/\/i0.wp.com\/www.recantha.co.uk\/blog\/wp-content\/uploads\/2017\/03\/ultrasonic_fluidsynth.jpg?resize=1024%2C571&amp;ssl=1 1024w, https:\/\/i0.wp.com\/www.recantha.co.uk\/blog\/wp-content\/uploads\/2017\/03\/ultrasonic_fluidsynth.jpg?resize=560%2C312&amp;ssl=1 560w, https:\/\/i0.wp.com\/www.recantha.co.uk\/blog\/wp-content\/uploads\/2017\/03\/ultrasonic_fluidsynth.jpg?resize=260%2C145&amp;ssl=1 260w, https:\/\/i0.wp.com\/www.recantha.co.uk\/blog\/wp-content\/uploads\/2017\/03\/ultrasonic_fluidsynth.jpg?resize=160%2C89&amp;ssl=1 160w, https:\/\/i0.wp.com\/www.recantha.co.uk\/blog\/wp-content\/uploads\/2017\/03\/ultrasonic_fluidsynth.jpg?w=1120&amp;ssl=1 1120w\" sizes=\"auto, (max-width: 560px) 100vw, 560px\" \/><\/a><\/p>\n<p>Andy Grove has created a musical instrument by adding 8 ultrasonic distance sensors to a Raspberry Pi, via an <a href=\"https:\/\/www.tindie.com\/products\/andygrove73\/octasonic-8-x-hc-sr04-ultrasonic-breakout-board\/\" target=\"_blank\">Octasonic breakout board<\/a>. The software, <a href=\"https:\/\/github.com\/TheGizmoDojo\/SonicSounds\" target=\"_blank\">which is available on GitHub<\/a>, is written in the Rust programming language and the synthesizer is based on FluidSynth, a piece of software I used myself in <a href=\"https:\/\/www.recantha.co.uk\/blog\/?p=14818\" target=\"_blank\">my Music Box project<\/a>.<\/p>\n<p>Take a look below at two videos of it in action. The first just uses piano samples:<\/p>\n<p><span class=\"embed-youtube\" style=\"text-align:center; display: block;\"><iframe loading=\"lazy\" class=\"youtube-player\" width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/eXgCb6xm2Ug?version=3&#038;rel=1&#038;showsearch=0&#038;showinfo=1&#038;iv_load_policy=1&#038;fs=1&#038;hl=en-US&#038;autohide=2&#038;wmode=transparent\" allowfullscreen=\"true\" style=\"border:0;\" sandbox=\"allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox\"><\/iframe><\/span><\/p>\n<p>whilst the second uses a larger area of instruments:<\/p>\n<p><span class=\"embed-youtube\" style=\"text-align:center; display: block;\"><iframe loading=\"lazy\" class=\"youtube-player\" width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/3iLIQvG_j-8?version=3&#038;rel=1&#038;showsearch=0&#038;showinfo=1&#038;iv_load_policy=1&#038;fs=1&#038;hl=en-US&#038;autohide=2&#038;wmode=transparent\" allowfullscreen=\"true\" style=\"border:0;\" sandbox=\"allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox\"><\/iframe><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Andy Grove has created a musical instrument by adding 8 ultrasonic distance sensors to a Raspberry Pi, via an Octasonic breakout board. The software, which is available on GitHub, is written in the Rust programming language and the synthesizer is&hellip;<\/p>\n<p class=\"more-link-p\"><a class=\"more-link\" href=\"https:\/\/www.recantha.co.uk\/blog\/?p=16658\">Read more &rarr;<\/a><\/p>\n","protected":false},"author":1,"featured_media":16659,"comment_status":"open","ping_status":"closed","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":[54,31,62],"tags":[148,299,300],"class_list":["post-16658","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-accessories","category-music","category-sensors","tag-musical-instrument","tag-synthesizer","tag-ultrasonic"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Ultrasonic sensors and FluidSynth used together to create a Raspberry Pi-powered synthesizer - Raspberry Pi Pod<\/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:\/\/www.recantha.co.uk\/blog\/?p=16658\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Ultrasonic sensors and FluidSynth used together to create a Raspberry Pi-powered synthesizer - Raspberry Pi Pod\" \/>\n<meta property=\"og:description\" content=\"Andy Grove has created a musical instrument by adding 8 ultrasonic distance sensors to a Raspberry Pi, via an Octasonic breakout board. The software, which is available on GitHub, is written in the Rust programming language and the synthesizer is&hellip;Read more &rarr;\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.recantha.co.uk\/blog\/?p=16658\" \/>\n<meta property=\"og:site_name\" content=\"Raspberry Pi Pod\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/recantha\/\" \/>\n<meta property=\"article:published_time\" content=\"2017-03-29T12:37:12+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/i1.wp.com\/www.recantha.co.uk\/blog\/wp-content\/uploads\/2017\/03\/ultrasonic_fluidsynth.jpg?fit=1269%2C708&ssl=1\" \/>\n\t<meta property=\"og:image:width\" content=\"1269\" \/>\n\t<meta property=\"og:image:height\" content=\"708\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Michael Horne\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@recantha\" \/>\n<meta name=\"twitter:site\" content=\"@recantha\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Michael Horne\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.recantha.co.uk\/blog\/?p=16658#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.recantha.co.uk\/blog\/?p=16658\"},\"author\":{\"name\":\"Michael Horne\",\"@id\":\"https:\/\/www.recantha.co.uk\/blog\/#\/schema\/person\/c27c4ef2ee1c18b130f1fcd5dcdbb263\"},\"headline\":\"Ultrasonic sensors and FluidSynth used together to create a Raspberry Pi-powered synthesizer\",\"datePublished\":\"2017-03-29T12:37:12+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.recantha.co.uk\/blog\/?p=16658\"},\"wordCount\":109,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/www.recantha.co.uk\/blog\/#organization\"},\"image\":{\"@id\":\"https:\/\/www.recantha.co.uk\/blog\/?p=16658#primaryimage\"},\"thumbnailUrl\":\"https:\/\/i0.wp.com\/www.recantha.co.uk\/blog\/wp-content\/uploads\/2017\/03\/ultrasonic_fluidsynth.jpg?fit=1269%2C708&ssl=1\",\"keywords\":[\"musical instrument\",\"synthesizer\",\"ultrasonic\"],\"articleSection\":[\"Accessories\",\"Music\",\"Sensors\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/www.recantha.co.uk\/blog\/?p=16658#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.recantha.co.uk\/blog\/?p=16658\",\"url\":\"https:\/\/www.recantha.co.uk\/blog\/?p=16658\",\"name\":\"Ultrasonic sensors and FluidSynth used together to create a Raspberry Pi-powered synthesizer - 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Caught a particularly nasty chest infection and flu on the flight back from Belfast, hence the lack of updates. I'm about 60% at the moment, but wanted to try and keep the bloggage going as best I can! Robin Newman, who is an expert with Sonic Pi, has\u2026","rel":"","context":"In &quot;Audio&quot;","block_context":{"text":"Audio","link":"https:\/\/www.recantha.co.uk\/blog\/?cat=4"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.recantha.co.uk\/blog\/wp-content\/uploads\/2018\/05\/theremin.jpg?fit=1200%2C1200&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.recantha.co.uk\/blog\/wp-content\/uploads\/2018\/05\/theremin.jpg?fit=1200%2C1200&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.recantha.co.uk\/blog\/wp-content\/uploads\/2018\/05\/theremin.jpg?fit=1200%2C1200&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.recantha.co.uk\/blog\/wp-content\/uploads\/2018\/05\/theremin.jpg?fit=1200%2C1200&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/www.recantha.co.uk\/blog\/wp-content\/uploads\/2018\/05\/theremin.jpg?fit=1200%2C1200&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":13127,"url":"https:\/\/www.recantha.co.uk\/blog\/?p=13127","url_meta":{"origin":16658,"position":1},"title":"Oxford Flood Network uses Raspberry Pis to detect rising water","author":"Michael Horne","date":"10 August 2015","format":false,"excerpt":"The Oxford Flood Network uses a network of ultrasonic sensors in a flood-prone area to detect water levels and broadcast their data over short distances to Raspberry Pi-based gateways; these aggregate the data and pass it to an open online database. The detection devices are Arduino-based. They then communicate to\u2026","rel":"","context":"In &quot;Arduino&quot;","block_context":{"text":"Arduino","link":"https:\/\/www.recantha.co.uk\/blog\/?cat=55"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/40.media.tumblr.com\/ccc7fbb285047270bae081c4553b6276\/tumblr_inline_nnjga7Yb431qz9jsi_500.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":15882,"url":"https:\/\/www.recantha.co.uk\/blog\/?p=15882","url_meta":{"origin":16658,"position":2},"title":"Mexican bacteriological experiment produces biology-driven music via a Raspberry Pi","author":"Michael Horne","date":"18 November 2016","format":false,"excerpt":"A Mexican team of Paloma L\u00f3pez, Leslie Garc\u00eda, and Emmanuel Anguiano (together, they are known as Interspecifics) have created a nature-driven musical instrument. Micro-ritmos\u00a0is an art installation in which 'music' is generated by patterns formed by bacterial cells. The material is called\u00a0Geobacter, which is an anaerobic bacteria found in sediment.\u2026","rel":"","context":"In &quot;Arduino&quot;","block_context":{"text":"Arduino","link":"https:\/\/www.recantha.co.uk\/blog\/?cat=55"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":17376,"url":"https:\/\/www.recantha.co.uk\/blog\/?p=17376","url_meta":{"origin":16658,"position":3},"title":"Touch-sensitive musical instrument synthesizer uses a Raspberry Pi","author":"Michael Horne","date":"28 July 2017","format":false,"excerpt":"https:\/\/www.youtube.com\/watch?v=Gf4wISY6VHs Music artist\u00a0otem rellik\u00a0(Toby Hendricks) previously created a live performance music looper. This time, he's focused on creating a touch-sensitive musical instrument and beneath the hood is a Raspberry Pi. You can see it in action above and hopefully he'll do a tear-down of it at some future date. Thanks\u2026","rel":"","context":"In &quot;Audio&quot;","block_context":{"text":"Audio","link":"https:\/\/www.recantha.co.uk\/blog\/?cat=4"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/img.youtube.com\/vi\/Gf4wISY6VHs\/0.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":12782,"url":"https:\/\/www.recantha.co.uk\/blog\/?p=12782","url_meta":{"origin":16658,"position":4},"title":"Raspberry Pi motion sensor with realtime alerts","author":"Michael Horne","date":"17 June 2015","format":false,"excerpt":"Eric Grossman over at PubNub has written an interesting tutorial which uses an ultrasonic distance sensor. The sensor detects motion by taking constant readings and then uses the PubNub service to 'subscribe' to any alerts generated. Read more here.","rel":"","context":"In &quot;Programming&quot;","block_context":{"text":"Programming","link":"https:\/\/www.recantha.co.uk\/blog\/?cat=39"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.pubnub.com\/blog\/wp-content\/uploads\/2015\/06\/Rangefinder.Full-View-1024x712.jpg?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.pubnub.com\/blog\/wp-content\/uploads\/2015\/06\/Rangefinder.Full-View-1024x712.jpg?resize=350%2C200 1x, https:\/\/i0.wp.com\/www.pubnub.com\/blog\/wp-content\/uploads\/2015\/06\/Rangefinder.Full-View-1024x712.jpg?resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.pubnub.com\/blog\/wp-content\/uploads\/2015\/06\/Rangefinder.Full-View-1024x712.jpg?resize=700%2C400 2x"},"classes":[]},{"id":14196,"url":"https:\/\/www.recantha.co.uk\/blog\/?p=14196","url_meta":{"origin":16658,"position":5},"title":"Girl Scout cookies protected by a Raspberry Pi","author":"Michael Horne","date":"22 February 2016","format":false,"excerpt":"Jamie over at Initial State has posted a great new tutorial which uses an ultrasonic sensor with a GrovePi board to keep an eye on a stash of Girl Scout cookies. When an intruder is detected, the IS service is called and an SMS generated to a named recipient. Great\u2026","rel":"","context":"In &quot;Internet of things&quot;","block_context":{"text":"Internet of things","link":"https:\/\/www.recantha.co.uk\/blog\/?cat=26"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/blog.initialstate.com\/wp-content\/uploads\/2016\/02\/cookie_protector-1024x1024.jpg?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/blog.initialstate.com\/wp-content\/uploads\/2016\/02\/cookie_protector-1024x1024.jpg?resize=350%2C200 1x, https:\/\/i0.wp.com\/blog.initialstate.com\/wp-content\/uploads\/2016\/02\/cookie_protector-1024x1024.jpg?resize=525%2C300 1.5x, https:\/\/i0.wp.com\/blog.initialstate.com\/wp-content\/uploads\/2016\/02\/cookie_protector-1024x1024.jpg?resize=700%2C400 2x"},"classes":[]}],"_links":{"self":[{"href":"https:\/\/www.recantha.co.uk\/blog\/index.php?rest_route=\/wp\/v2\/posts\/16658","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.recantha.co.uk\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.recantha.co.uk\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.recantha.co.uk\/blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.recantha.co.uk\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=16658"}],"version-history":[{"count":1,"href":"https:\/\/www.recantha.co.uk\/blog\/index.php?rest_route=\/wp\/v2\/posts\/16658\/revisions"}],"predecessor-version":[{"id":16660,"href":"https:\/\/www.recantha.co.uk\/blog\/index.php?rest_route=\/wp\/v2\/posts\/16658\/revisions\/16660"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.recantha.co.uk\/blog\/index.php?rest_route=\/wp\/v2\/media\/16659"}],"wp:attachment":[{"href":"https:\/\/www.recantha.co.uk\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=16658"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.recantha.co.uk\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=16658"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.recantha.co.uk\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=16658"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}