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Convert VOB to AC3

Extract the audio from VOB videos and save it as AC3 — ideal for home theatre and surround sound.

  • No upload — 100% private
  • Fast, lossless when possible
  • Free & unlimited
  • Works on iPhone & Android

    Quality
    Advanced options
    Trim (optional)
    Use minutes:seconds, e.g. 1:05.5

    How to convert VOB to AC3

    1. 1

      Tap Choose files and select one or more VOB files (or drag them in).

    2. 2

      Check that AC3 is selected. Use Advanced options for bitrate, channels or trimming.

    3. 3

      Press Convert. Everything happens on your device — no upload, no waiting in a queue.

    4. 4

      Your AC3 downloads automatically. Converting several files? Grab them all as a ZIP.

    VOB vs AC3

    Only the sound is kept — the picture is dropped, so the AC3 file is far smaller than the VOB video.

    VOBAC3
    Full nameDVD Video ObjectDolby Digital (AC-3)
    TypeVideoAudio
    CompressionLossyLossy
    Developed byDVD ForumDolby Laboratories
    Introduced19961991
    Plays on iPhone✕ No◐ Partly / with an app
    Plays on Android✕ No◐ Partly / with an app
    Plays on Windows✓ Yes✓ Yes
    Plays on Mac◐ Partly / with an app✓ Yes

    About VOB and AC3

    VOB: VOB files are the video files on a DVD disc (inside the VIDEO_TS folder).

    AC3: AC3 is Dolby Digital surround sound, used on DVDs, Blu-rays and TV broadcasts. It supports up to 5.1 channels.

    Frequently asked questions

    How do I convert VOB to AC3 on my phone?
    Open this page in your phone's browser (Safari, Chrome, Samsung Internet), tap Choose files, pick your VOB, make sure AC3 is selected and tap Convert. The AC3 file is saved to your Downloads.
    Will converting VOB to AC3 reduce quality?
    Only the sound is kept — the picture is dropped, so the AC3 file is far smaller than the VOB video.
    Can I convert only part of the VOB?
    Yes. Open Advanced options → Trim and enter a start and end time.
    Is this VOB to AC3 converter free?
    Yes — completely free with no limits on the number of files, no watermark and no account. The site is supported by ads.
    Are my files uploaded to a server?
    No. The converter runs inside your browser using WebAssembly, so your files never leave your device. That's also why it works for private and confidential recordings.

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    Convert VOB to other formats

    VOB to MP4VOB to MOVVOB to MKVVOB to WEBMVOB to AVIVOB to FLVVOB to WMVVOB to 3GPVOB to M4VVOB to MPGVOB to TSVOB to GIFVOB to MP3VOB to M4AVOB to M4RVOB to AACVOB to ALACVOB to WAVVOB to FLACVOB to OGGVOB to OPUSVOB to WEBAVOB to WMAVOB to AIFFVOB to CAF

    Convert other formats to AC3

    MP3 to AC3M4A to AC3M4R to AC3AAC to AC3ALAC to AC3WAV to AC3FLAC to AC3OGG to AC3OPUS to AC3WEBA to AC3WMA to AC3AIFF to AC3CAF to AC3AMR to AC33GA to AC3APE to AC3MP4 to AC3MOV to AC3MKV to AC3WEBM to AC3AVI to AC3FLV to AC3WMV to AC33GP to AC3M4V to AC3MPG to AC3TS to AC3GIF to AC3MTS to AC3HEVC to AC3RMVB to AC3

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