{"id":1556,"date":"2021-08-04T20:59:36","date_gmt":"2021-08-04T10:59:36","guid":{"rendered":"https:\/\/blog.hegars.com\/?p=1556"},"modified":"2021-08-13T23:48:13","modified_gmt":"2021-08-13T13:48:13","slug":"ffmpeg-generate-dialtone","status":"publish","type":"post","link":"https:\/\/blog.hegars.com\/?p=1556","title":{"rendered":"FFMPEG Generate Dialtone"},"content":{"rendered":"<div class=\"wp-block-syntaxhighlighter-code \"><pre class=\"brush: plain; title: ; notranslate\" title=\"\">\nffmpeg -f lavfi -i &quot;sine=frequency=440:duration=5:sample_rate=8000&quot; -f lavfi -i &quot;sine=frequency=350:duration=5:sample_rate=8000&quot; -ab 8k -ac 1 -filter_complex &quot;&#x5B;0]&#x5B;1]amerge&quot; -codec:a pcm_mulaw dialtone.wav\n<\/pre><\/div>\n\n\n<figure class=\"wp-block-audio\"><audio controls src=\"https:\/\/blog.hegars.com\/wp-content\/uploads\/2021\/08\/dialtone.wav\"><\/audio><\/figure>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-container-style":"default","site-container-layout":"default","site-sidebar-layout":"default","disable-article-header":"default","disable-site-header":"default","disable-site-footer":"default","disable-content-area-spacing":"default","footnotes":""},"categories":[3],"tags":[],"_links":{"self":[{"href":"https:\/\/blog.hegars.com\/index.php?rest_route=\/wp\/v2\/posts\/1556"}],"collection":[{"href":"https:\/\/blog.hegars.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.hegars.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.hegars.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.hegars.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1556"}],"version-history":[{"count":5,"href":"https:\/\/blog.hegars.com\/index.php?rest_route=\/wp\/v2\/posts\/1556\/revisions"}],"predecessor-version":[{"id":1580,"href":"https:\/\/blog.hegars.com\/index.php?rest_route=\/wp\/v2\/posts\/1556\/revisions\/1580"}],"wp:attachment":[{"href":"https:\/\/blog.hegars.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1556"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.hegars.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1556"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.hegars.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1556"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}