{"id":23674,"date":"2018-05-21T08:00:42","date_gmt":"2018-05-21T08:00:42","guid":{"rendered":"https:\/\/fedoramagazine.org\/?p=20599"},"modified":"2018-05-21T08:00:42","modified_gmt":"2018-05-21T08:00:42","slug":"audacity-quick-tip-quickly-remove-background-noise","status":"publish","type":"post","link":"https:\/\/sickgaming.net\/blog\/2018\/05\/21\/audacity-quick-tip-quickly-remove-background-noise\/","title":{"rendered":"Audacity quick tip: quickly remove background noise"},"content":{"rendered":"

When recording sounds on a laptop — say for a simple first screencast — many users typically use the built-in microphone. However, these small microphones also capture a lot of background noise. In this quick tip, learn how to use Audacity<\/a> in Fedora to quickly remove the background noise from audio files.<\/p>\n

<\/span><\/p>\n

Installing Audacity<\/h3>\n

Audacity is an application in Fedora for mixing, cutting, and editing audio files. It supports a wide range of formats out of the box on Fedora — including MP3 and OGG. Install Audacity from the Software application.<\/p>\n

\"\"<\/p>\n

If the terminal is more your speed, use the command:<\/p>\n

sudo dnf install audacity<\/pre>\n
Import your Audio, sample background noise<\/h3>\n
After installing Audacity, open the application, and import your sound using the File > Import<\/strong> menu item. This example uses a sound bite from freesound.org<\/a>\u00a0to which noise was added:<\/p>\n

\nhttps:\/\/ryanlerch.fedorapeople.org\/noise.ogg<\/a><\/audio><\/p>\n
Next, take a sample of the background noise to be filtered out. With the tracks imported, select an area of the track that contains only the background noise. Then choose Effect >\u00a0 Noise Reduction<\/strong> from the menu, and press the Get Noise Profile<\/strong> button.<\/p>\n
\"\"<\/p>\n
Filter the Noise<\/h3>\n
Next, select the area of the track you want to filter the noise from. Do this either by selecting with the mouse, or Ctrl + a<\/strong> to select the entire track. Finally, open the Effect > Noise Reduction<\/strong> dialog again, and click OK to apply the filter.<\/p>\n
\"\"<\/p>\n
Additionally, play around with the settings until your tracks sound better. Here is the original file again, followed by the noise reduced track for comparison (using the default settings):<\/p>\n
https:\/\/ryanlerch.fedorapeople.org\/sidebyside.ogg<\/a><\/audio> <\/p>\n","protected":false},"excerpt":{"rendered":"
When recording sounds on a laptop — say for a simple first screencast — many users typically use the built-in microphone. However, these small microphones also capture a lot of background noise. In this quick tip, learn how to use Audacity in Fedora to quickly remove the background noise from audio files. Installing Audacity Audacity […]<\/p>\n","protected":false},"author":2,"featured_media":23675,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[48],"tags":[101,45,46,47,44],"class_list":["post-23674","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-fedora-os","tag-audacity","tag-fedora","tag-magazine","tag-news","tag-using-software"],"_links":{"self":[{"href":"https:\/\/sickgaming.net\/blog\/wp-json\/wp\/v2\/posts\/23674","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sickgaming.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sickgaming.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sickgaming.net\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/sickgaming.net\/blog\/wp-json\/wp\/v2\/comments?post=23674"}],"version-history":[{"count":0,"href":"https:\/\/sickgaming.net\/blog\/wp-json\/wp\/v2\/posts\/23674\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/sickgaming.net\/blog\/wp-json\/wp\/v2\/media\/23675"}],"wp:attachment":[{"href":"https:\/\/sickgaming.net\/blog\/wp-json\/wp\/v2\/media?parent=23674"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sickgaming.net\/blog\/wp-json\/wp\/v2\/categories?post=23674"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sickgaming.net\/blog\/wp-json\/wp\/v2\/tags?post=23674"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}