I downloaded a “Linux ISO” which came as a series of *.opus files. My iPhone doesn’t recognize them, so I was wondering if you guys might recommend a program to convert them to *.mp3 files.

Ideally a mac or linux based program with a gui. Any suggestions?

  • @db2@sopuli.xyz
    link
    fedilink
    English
    396 months ago

    I downloaded a “Linux ISO” which came as a series of *.opus files. My iPhone

    Trololol

  • @DolphinMath@slrpnk.net
    link
    fedilink
    English
    14
    edit-2
    6 months ago

    Installing VLC on your iPhone is probably the easiest solution. It should play the Opus files without any transcoding needed.

        • @DolphinMath@slrpnk.net
          link
          fedilink
          English
          7
          edit-2
          6 months ago

          AAC is higher quality for the same compression level and generally preferred by Apple. MP3 should be fine too though.

          EDIT: To be clear though, the programs I listed can handle all kinds of codecs including AAC and MP3. fre:ac is also good for ripping CDs if you’re into that sort of thing.

      • m-p{3}
        link
        fedilink
        English
        2
        edit-2
        6 months ago

        FYI MKVtoolNix doesn’t do transcoding, it simply allows you inspect/modify metadata and demux/remux data streams into an MKV container.it’s indeed useful and I use it often, but it wouldn’t be for OP’s use-case.

        • @DolphinMath@slrpnk.net
          link
          fedilink
          English
          16 months ago

          Oh dang, you’re right. I used to use StaxRip back when I was doing more encoding and then finish with MKVToolNix, but I think the gui is Windows only.

          Probably should have recommended Handbrake.

      • @DolphinMath@slrpnk.net
        link
        fedilink
        English
        1
        edit-2
        6 months ago

        I’ll have to check it out. If you want to listen to Audiobooks specifically, I will say that the Open Source app BookPlayer has been fantastic for me.

  • ѕєχυαℓ ρσℓутσρє
    link
    fedilink
    English
    12
    edit-2
    6 months ago

    If I’m not wrong, the best way to have best possible quality would be:

    ffmpeg -i file.opus -c:a libmp3lame -q:a 0 -map_metadata 0 file.mp3

    I know you asked for GUI, but CLI tools are better at this job since it’s very easy to batch process the files using a combination of find and parallel.

    Also, it’s probably a better idea to keep the files as they are and use a different audio player on your device. I don’t use iOS, so can’t suggest an app. VLC or mpv should work, but I personally prefer music apps with album, artist etc. support. For android, the app Gramophone is great. Another way would be to serve your files via a music server like navidrome and using a client like Tempo (again, it’s the android client I like, but surely there will be iOS alternatives).

    • @s38b35M5@lemmy.world
      link
      fedilink
      English
      4
      edit-2
      6 months ago

      Here’s a version that will do a batch (in the current folder/directory)

      for i in *.opus; do ffmpeg -i "$i" -c:a libmp3lame -q:a 0 -map_metadata 0 "${i%.*}.mp3"; done

      • ѕєχυαℓ ρσℓутσρє
        link
        fedilink
        English
        3
        edit-2
        6 months ago

        Tip: You can add an & just before the last ; to run these conversions concurrently. For more sophisticated control on the concurrency, I’d use parallel.

  • @neoA
    link
    English
    116 months ago

    Please don’t.

  • m-p{3}
    link
    fedilink
    English
    4
    edit-2
    6 months ago

    Install Audacity, and follow the instruction to add ffmpeg.

    From there you’ll be able to open most audio files out there and then export it to another format like mp3.

  • @mateomaui@reddthat.com
    link
    fedilink
    English
    2
    edit-2
    6 months ago

    Can probably use Audacity. May need to install a ffmpeg plugin first to read the opus files, then:

    goto Tools > Apply Macro > Palette…

    select “MP3 Conversion”

    then click “Files…” to choose your files and it should start a batch process.

    Before that, probably go to Edit > Preferences > Directories and change the entry for “Macro output” to a custom folder so it’s easy to find. (note: the instructions on that settings page says to leave a field blank to use the last directory, but that’s not the case for macro output, definitely set a custom location for that.)

    edit: also a good method for converting FLAC if there’s a need for it