this post was submitted on 04 Nov 2023
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Is it possible to rip audio from youtube without loss of quality or online conversions? (lemmy.dbzer0.com)
submitted 1 year ago* (last edited 1 year ago) by FartsUnited@lemmy.dbzer0.com to c/piracy@lemmy.dbzer0.com
12 comments fedilink hide all child comments
 

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

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[–] SexualPolytope@lemmy.sdf.org 34 points 1 year ago* (last edited 1 year ago) (1 children)

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.

[–] TwinHaelix@reddthat.com 3 points 1 year ago (1 children)

Does it skip the recode completely if the format is already opus?

[–] SexualPolytope@lemmy.sdf.org 5 points 1 year ago

Yes, it does. It just repackages it from .m4a to .opus without re-encoding the actual audio stream.

[–] Dettweiler42@lemmyonline.com 22 points 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.

[–] Kissaki@feddit.de 18 points 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).

[–] pr06lefs@lemmy.ml 18 points 1 year ago (2 children)

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

[–] infinull@lemmy.dbzer0.com 14 points 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)
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[–] lea@feddit.de 7 points 1 year ago

If you want an online tool, cobalt.tools can rip the original youtube audio if you choose "best" format in settings -> 🎶. It's also FOSS with no tracker/ad garbage so I can recommend it as an alternative for yt-dlp which has been mentioned already.

[–] BMP5k@feddit.uk 4 points 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.

[–] Thorny_Insight@lemm.ee 3 points 1 year ago* (last edited 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.

[–] sho@lemmy.ml 1 points 1 year ago

Easiest way is to use an Indivious instance, if you are on desktop or use the Newpipe App if on Android.

[–] rikonium@discuss.tchncs.de 1 points 1 year ago* (last edited 1 year ago)

Not a direct answer but for a while I had iTunes Match as a companion service which could be an imperfect workaround to get your hands on 256 Kbps AAC versions. (if it matches, which can’t be manually done)

I bailed when it glitched on a couple songs and syncing broke for a while. Direct iTunes sync hasn’t let me down since but it was nice while it lasted and the Matched songs I had are still kicking.

Of course it requires using iTunes and paying for that $25 for a non-guaranteed quality boost.