{"id":226,"date":"2023-03-01T18:12:22","date_gmt":"2023-03-01T18:12:22","guid":{"rendered":"https:\/\/oe9sau.msauter.at\/?p=226"},"modified":"2024-02-15T07:59:07","modified_gmt":"2024-02-15T07:59:07","slug":"teensy4-dsp-filter-for-my-ft-817","status":"publish","type":"page","link":"https:\/\/oe9sau.msauter.at\/?page_id=226","title":{"rendered":"Teensy4 DSP Filter for my FT-817"},"content":{"rendered":"<p>A 30\u20ac DSP Audio Filter by GI1MIC<br \/>\nVisit <a href=\"https:\/\/gi1mic.github.io\/\" target=\"_blank\" rel=\"noopener\">https:\/\/gi1mic.github.io\/<\/a> for information on how to use his code.<\/p>\n<p>This project is for installing into a Yaesu FT-817 but easily be adapted\u00a0 for many other radios or applications.<\/p>\n<p>What does it do?<br \/>\n&#8211; Act as multiple DSP filters based on hi pass, lo pass, band pass or band stop (filter points can be defined in Hz within the code)<br \/>\n&#8211; It uses voice messages to describe which filter has been selected<br \/>\n&#8211; It is a USB to CAT interface<br \/>\n&#8211; It emulates a USB sound card for receiving rig audio on a computer<br \/>\n&#8211; Performs Morse to voice decode and Morse to USB serial decode<br \/>\n&#8211; It can speak the radio config to assist the visually<br \/>\nimpaired (FT817 only)<\/p>\n<pre>Attached you can see the DSP inside my FT817 including the optional audio board.\r\n<a href=\"https:\/\/oe9sau.msauter.at\/wp-content\/uploads\/2023\/04\/FT_817_DSP-1.jpeg\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-230 size-medium\" src=\"https:\/\/oe9sau.msauter.at\/wp-content\/uploads\/2023\/04\/FT_817_DSP-1-225x300.jpeg\" alt=\"\" width=\"225\" height=\"300\" srcset=\"https:\/\/oe9sau.msauter.at\/wp-content\/uploads\/2023\/04\/FT_817_DSP-1-225x300.jpeg 225w, https:\/\/oe9sau.msauter.at\/wp-content\/uploads\/2023\/04\/FT_817_DSP-1-768x1024.jpeg 768w, https:\/\/oe9sau.msauter.at\/wp-content\/uploads\/2023\/04\/FT_817_DSP-1-1152x1536.jpeg 1152w, https:\/\/oe9sau.msauter.at\/wp-content\/uploads\/2023\/04\/FT_817_DSP-1.jpeg 1536w\" sizes=\"auto, (max-width: 225px) 100vw, 225px\" \/><\/a> <a href=\"https:\/\/oe9sau.msauter.at\/wp-content\/uploads\/2023\/04\/FT_817_DSP-5.jpeg\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-234 size-medium\" src=\"https:\/\/oe9sau.msauter.at\/wp-content\/uploads\/2023\/04\/FT_817_DSP-5-300x225.jpeg\" alt=\"\" width=\"300\" height=\"225\" srcset=\"https:\/\/oe9sau.msauter.at\/wp-content\/uploads\/2023\/04\/FT_817_DSP-5-300x225.jpeg 300w, https:\/\/oe9sau.msauter.at\/wp-content\/uploads\/2023\/04\/FT_817_DSP-5-1024x768.jpeg 1024w, https:\/\/oe9sau.msauter.at\/wp-content\/uploads\/2023\/04\/FT_817_DSP-5-768x576.jpeg 768w, https:\/\/oe9sau.msauter.at\/wp-content\/uploads\/2023\/04\/FT_817_DSP-5-1536x1152.jpeg 1536w, https:\/\/oe9sau.msauter.at\/wp-content\/uploads\/2023\/04\/FT_817_DSP-5.jpeg 2048w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a>\r\n\r\n<a href=\"https:\/\/www.pjrc.com\/store\/teensy3_audio.html\" target=\"_blank\" rel=\"noopener\">Teensy boards and stuff by PJRC Store<\/a>\r\n<a href=\"https:\/\/www.pjrc.com\/teensy\/gui\/\" target=\"_blank\" rel=\"noopener\">Audio Filter Design Tool by PJRC Store<\/a>\r\n<a href=\"https:\/\/www.va3hdl.com\/projects\/digital-mic-preamp\" target=\"_blank\" rel=\"noopener\">Some other nice DSP project,a digital mic preamp<\/a>\r\n<a href=\"https:\/\/www.sotabeams.co.uk\/variable-bandwidth-filter-modules-ssb-cw\/\" target=\"_blank\" rel=\"noopener\">DSP-Filter by Sotabeams<\/a><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>A 30\u20ac DSP Audio Filter by GI1MIC Visit https:\/\/gi1mic.github.io\/ for information on how to use his code. This project is for installing into a Yaesu FT-817 but easily be adapted\u00a0 for many other radios or applications. What does it do? &#8211; Act as multiple DSP filters based on hi pass, lo pass, band pass or &hellip; <a href=\"https:\/\/oe9sau.msauter.at\/?page_id=226\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">Teensy4 DSP Filter for my FT-817<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":239,"parent":0,"menu_order":0,"comment_status":"open","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-226","page","type-page","status-publish","has-post-thumbnail","hentry"],"_links":{"self":[{"href":"https:\/\/oe9sau.msauter.at\/index.php?rest_route=\/wp\/v2\/pages\/226","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/oe9sau.msauter.at\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/oe9sau.msauter.at\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/oe9sau.msauter.at\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/oe9sau.msauter.at\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=226"}],"version-history":[{"count":7,"href":"https:\/\/oe9sau.msauter.at\/index.php?rest_route=\/wp\/v2\/pages\/226\/revisions"}],"predecessor-version":[{"id":238,"href":"https:\/\/oe9sau.msauter.at\/index.php?rest_route=\/wp\/v2\/pages\/226\/revisions\/238"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oe9sau.msauter.at\/index.php?rest_route=\/wp\/v2\/media\/239"}],"wp:attachment":[{"href":"https:\/\/oe9sau.msauter.at\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=226"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}