{"id":120,"date":"2011-01-27T11:12:00","date_gmt":"2011-01-27T09:12:00","guid":{"rendered":"http:\/\/www.joanillo.org\/?p=120"},"modified":"2020-09-14T11:13:58","modified_gmt":"2020-09-14T09:13:58","slug":"el-sintetitzador-mes-simple-controlat-amb-un-sensor-linial","status":"publish","type":"post","link":"https:\/\/www.joanillo.org\/?p=120","title":{"rendered":"El sintetitzador m\u00e9s simple, controlat amb un sensor linial"},"content":{"rendered":"<p><img src=\"http:\/\/www.joanillo.org\/wp-content\/uploads\/2011\/01\/simplest_synth.png\" alt=\"simplest_synth\" title=\"simplest_synth\" width=\"200\" class=\"alignright size-full wp-image-351\"><br \/>\nDespr\u00e9s de bastant de temps, una nova entrega del projecte <strong>50 maneres de tocar Una Plata d&#8217;Enciam<\/strong>. Aquest cop vull ensenyar-vos els principis m\u00e9s b\u00e0sics de la s\u00edntesi d&#8217;audio. \u00c9s un projecte molt senzill, b\u00e0sic i barato, amb grans possibilitats d&#8217;\u00e8xit fins i tot per la gent sense experi\u00e8ncia en electr\u00f2nica.<\/p>\n<p>Recordo de les \u00e8poques de la universitat en qu\u00e8 estudiava els circuits RC, les equacions diferencials associades, i com la corba de c\u00e0rrega i desc\u00e0rrega d&#8217;un condensador \u00e9s una funci\u00f3 exponencial. En aquest circuit aconseguim carregar i descarregar el condensador de forma c\u00edclica, gr\u00e0cies a dos transistors que s&#8217;obren quan el condensador est\u00e0 carregat, i es tanquen quan el condensador es descarrega. Escollint els valors de resist\u00e8ncia i condensador adequats la freq\u00fcencia de resson\u00e0ncia est\u00e0 dins l&#8217;espectre audible, que podem escoltar amb un petit altaveu. Amb una resist\u00e8ncia variable podem aconseguir variar la freq\u00fc\u00e8ncia, aconseguint un petit theremin o tannerin.<\/p>\n<p>i aqu\u00ed va el video mostrant com es construeix aquest petit sintetitzador, i com es pot tocar una can\u00e7\u00f3 com <strong>Una Plata d&#8217;Enciam<\/strong>.<br \/>\nm\u00e9s informaci\u00f3 a la <a href=\"http:\/\/wiki.joanillo.org\/index.php\/50_ways..._The_simplest_synthesizer%2C_ribbon_controlled\">wiki<\/a><br \/>\n<object width=\"308\" height=\"250\"><param name=\"movie\" value=\"http:\/\/www.youtube.com\/v\/C6X5L7zj1bI?hl=es&amp;fs=1\"><param name=\"allowFullScreen\" value=\"true\"><param name=\"allowscriptaccess\" value=\"always\"><embed src=\"http:\/\/www.youtube.com\/v\/C6X5L7zj1bI?hl=es&amp;fs=1\" type=\"application\/x-shockwave-flash\" allowscriptaccess=\"always\" allowfullscreen=\"true\" width=\"308\" height=\"250\"><\/object><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Despr\u00e9s de bastant de temps, una nova entrega del projecte 50 maneres de tocar Una Plata d&#8217;Enciam. Aquest cop vull ensenyar-vos els principis m\u00e9s b\u00e0sics de la s\u00edntesi d&#8217;audio. \u00c9s un projecte molt senzill, b\u00e0sic i barato, amb grans possibilitats d&#8217;\u00e8xit fins i tot per la gent sense experi\u00e8ncia en electr\u00f2nica. Recordo de les \u00e8poques [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[13,14,16,12,5],"tags":[],"_links":{"self":[{"href":"https:\/\/www.joanillo.org\/index.php?rest_route=\/wp\/v2\/posts\/120"}],"collection":[{"href":"https:\/\/www.joanillo.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.joanillo.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.joanillo.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.joanillo.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=120"}],"version-history":[{"count":1,"href":"https:\/\/www.joanillo.org\/index.php?rest_route=\/wp\/v2\/posts\/120\/revisions"}],"predecessor-version":[{"id":121,"href":"https:\/\/www.joanillo.org\/index.php?rest_route=\/wp\/v2\/posts\/120\/revisions\/121"}],"wp:attachment":[{"href":"https:\/\/www.joanillo.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=120"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.joanillo.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=120"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.joanillo.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=120"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}