I read somewhere that it is possible to rip youtube videos (music only) without the need for converting it into an mp3 as such.

The online conversion process (naturally) results in loss of quality, and (apparently) it is possible to preserve the original video’s audio quality via a direct rip. If so, how would it be done and what format would it be in anyway?

thanks

  • guitars are real@sh.itjust.worksEnglish
    3·
    1 year ago

    if you use yt-dlp or youtube-dl’s -F flag you can get back a list of available formats. There are typically separately encoded audio tracks for most content on youtube, meaning you can just give it the stream id and get an m4a or webm file with no extra work.

    • XEAL@lemm.eeEnglish
      3·
      1 year ago

      The fork yt-dlp already downloads in the highest quality.

      The problem is that, that’s (sometimes?) webm format…

  • Dettweiler@lemmyonline.comEnglish
    31·
    1 year ago

    YouTube compresses the video as soon as it’s uploaded, so it’s unlikely you can obtain any sort of lossless download. You may be able to get a .wav or similar download of a video’s audio track, but there will still be compression losses from the YouTube side.

  • ѕєχυαℓ ρσℓутσρє@lemmy.sdf.orgEnglish
    31·
    1 year ago

    This is what I use for my personal archive:

    yt-dlp -f bestaudio/best --extract-audio --embed-metadata --embed-thumbnail --recode opus --audio-quality 0

    It does recode to opus but since the bestaudio is usually in that format already, you don’t need it most of the time. You can skip the --recode opus part if you want to. I keep it because I like having a “uniform” collection. You can probably change the bestaudio/best part to simply bestaudio without losing much as well.

  • Kissaki@feddit.deEnglish
    1·
    1 year ago

    yt-dlp has the -F parameter to list the available stream formats. (uppercase F to list, lowercase f to select)

    I use -f 251 to download the opus audio stream, and afterwards use ffmpeg -i file -c copy file.opus to copy the opus audio stream in an opus file format file (codec copy so without encoding losses).

  • BMP5k@feddit.ukEnglish
    1·
    1 year ago

    I believe Jdownloader 2 lets you do link grabber with YouTube links that can download audio only with a choice of format.

  • pr06lefs@lemmy.mlEnglish
    1·
    1 year ago

    I dunno about the qualilty but I do yt-dlp -x and it downloads and extracts just the audio portion.

    • infinull@lemmy.dbzer0.comEnglish
      1·
      1 year ago

      This uses ffmpeg under the hood and muxes the file into a .m4a file without transcoding. Basically keeping whatever compression youtube used for the audio (which is some sort of mpeg4 compatible audio, probably depends a little bit)

      This still recompressed, but it’s the best you can do using youtube as the source.

      • uploader (almost certainly, but theoretically you could skip this step if you encoded your video well) compresses audio
      • uploader uploads to youtube
      • youtube re-compresses the audio again (almost certainly transcoding into a different codec)
  • Thorny_Insight@lemm.eeEnglish
    0·
    1 year ago

    I use this app for it. Even adds the correct artist, title, album and such to the file aswell. I tried several similar apps but this was by far the best.