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115 lines
4.5 KiB
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[#]: subject: "How to Download Audio Only Using youtube-dl"
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[#]: via: "https://itsfoss.com/youtube-dl-audio-only/"
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[#]: author: "Abhishek Prakash https://itsfoss.com/author/abhishek/"
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[#]: collector: "lujun9972"
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[#]: translator: " "
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[#]: reviewer: " "
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[#]: publisher: " "
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[#]: url: " "
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How to Download Audio Only Using youtube-dl
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======
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[youtube-dl][1] is a versatile command line tool for downloading videos from YouTube and many other websites. I use it for making back up of my own YouTube videos.
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By default, you [use youtube-dl for downloading videos][2]. How about extracting only the audio with youtubde-dl? That’s very simple actually. Let me show you the steps.
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Attention
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Downloading videos from websites could be against their policies. It’s up to you if you choose to download videos or audio.
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### Download only audio with youtube-dl
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Please make sure that you have installed youtube-dl on your Linux distribution first.
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```
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sudo snap install youtube-dl
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```
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If you only want to download audio from a YouTube video, you can use the -x option with youtube-dl. This extract-audio option converts the video files to audio-only files.
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```
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youtube-dl -x video_URL
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```
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The file is saved in the same directory from where you ran the youtube-dl command.
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Here’s an example where I downloaded the voice-over of our Zorin OS 16 review video.
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```
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youtube-dl -x https://www.youtube.com/watch?v=m_PmLG7HqbQ
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[youtube] m_PmLG7HqbQ: Downloading webpage
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[download] Destination: Zorin OS 16 Review - It's a Visual Masterpiece-m_PmLG7HqbQ.m4a
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[download] 100% of 4.26MiB in 00:03
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[ffmpeg] Correcting container in "Zorin OS 16 Review - It's a Visual Masterpiece-m_PmLG7HqbQ.m4a"
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[ffmpeg] Post-process file Zorin OS 16 Review - It's a Visual Masterpiece-m_PmLG7HqbQ.m4a exists, skipping
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```
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Did you notice the audio format? It is in .m4a format. You may specify the audio format to something of your choice.
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Say you want to extract the audio in MP3 format. You can use it like this:
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```
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youtube-dl -x --audio-format mp3 video_URL
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```
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Here’s the same example I showed previously. You can see that it [uses ffmpeg to convert][3] the m4a file into mp3.
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```
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youtube-dl -x --audio-format mp3 https://www.youtube.com/watch?v=m_PmLG7HqbQ
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[youtube] m_PmLG7HqbQ: Downloading webpage
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[download] Zorin OS 16 Review - It's a Visual Masterpiece-m_PmLG7HqbQ.m4a has already been downloaded
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[download] 100% of 4.26MiB
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[ffmpeg] Correcting container in "Zorin OS 16 Review - It's a Visual Masterpiece-m_PmLG7HqbQ.m4a"
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[ffmpeg] Destination: Zorin OS 16 Review - It's a Visual Masterpiece-m_PmLG7HqbQ.mp3
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Deleting original file Zorin OS 16 Review - It's a Visual Masterpiece-m_PmLG7HqbQ.m4a (pass -k to keep)
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```
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### Download entire YouTube playlist in MP3 format
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Yes, you can totally do that. The main thing is to get the URL of the playlist here. It is typically in the following format:
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```
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https://www.youtube.com/playlist?list=XXXXXXXXXXXXXXXXXXX
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```
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To get the URL of a playlist, click on its name when the playlist is being displayed in the right sidebar.
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![Click on the playlist title][4]
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It will take you to the playlist page and you can copy the URL here.
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![Grab the playlist URL][5]
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Now that you have the playlist URL, you can use it to download the audio files in MP3 format in the following fashion:
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```
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youtube-dl --extract-audio --audio-format mp3 -o "%(title)s.%(ext)s" playlist_URL
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```
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That scary looking `-o "%(title)s.%(ext)s"` specifies the output file (with option -o) and instructs it to use the title of the video and the extension (mp3 in this case) for naming the audio files.
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![][6]
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I hope you find this quick tip helpful. Enjoy the audio files :)
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--------------------------------------------------------------------------------
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via: https://itsfoss.com/youtube-dl-audio-only/
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作者：[Abhishek Prakash][a]
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选题：[lujun9972][b]
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译者：[译者ID](https://github.com/译者ID)
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校对：[校对者ID](https://github.com/校对者ID)
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本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
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[a]: https://itsfoss.com/author/abhishek/
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[b]: https://github.com/lujun9972
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[1]: https://github.com/ytdl-org/youtube-dl
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[2]: https://itsfoss.com/download-youtube-linux/
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[3]: https://itsfoss.com/ffmpeg/
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[4]: https://i1.wp.com/itsfoss.com/wp-content/uploads/2021/08/getting-youtube-playlist-url.png?resize=797%2C366&ssl=1
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[5]: https://i1.wp.com/itsfoss.com/wp-content/uploads/2021/08/youtube-playlist-url.png?resize=800%2C388&ssl=1
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[6]: https://i0.wp.com/itsfoss.com/wp-content/uploads/2021/08/downloading-youtube-playlist-audio.png?resize=800%2C559&ssl=1
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