Convert VOB to AAC
Convert any video file to AAC format online for free. Fast, secure, and easy-to-use video to AAC converter with no software installation required.
Drag & Drop Video File
or click below to browse
Max file size: 50 MBMax duration: 30 min
Sign up for increased limitsA free account gets you up to 50 MB and 30 min.
Why Choose Scriptivox VOB to AAC Converter?
Fast Conversion
Our powerful servers process your files quickly, delivering converted files in seconds.
100% Free
Convert your files completely free with no hidden costs or subscription fees.
Secure & Private
Your files are encrypted and automatically deleted after conversion. We never store or share your data.
No Installation
Works directly in your web browser. No software download or installation required.
How to Use VOB → AAC
Upload File
Drag and drop your VOB file or click to browse. Supports files up to 1GB.
Convert
Select AAC as your output format and click convert. Our servers will process your file instantly.
Download
Download your converted file instantly. The download link expires in 1 hour for security.
VOB vs AAC: format comparison
How the two formats differ on the things that change your result.
| Specification | VOB (source) | AAC (result) |
|---|---|---|
| Container | DVD-Video (MPEG-2 PS) | ADTS / raw AAC |
| Developed by | DVD Forum | MPEG / Fraunhofer IIS |
| Introduced | 1996 | 1997 |
| Audio codecs | AC-3, DTS, LPCM, MP2 | AAC-LC, HE-AAC |
| Compression | Lossy | Lossy |
| Typical bitrate | 128–384 kbps | 96–256 kbps |
| Approx. file size | 30–68 MB per minute | 0.72–1.92 MB per minute |
| Metadata / tags | Container tags | ID3v2 (limited in ADTS) |
| Licensing | Patents expired | Patent-licensed |
| Plays natively on | Needs a player: macOS, Android, Windows | Native: Web browsers, Windows, macOS, iOS, Android, Smart TVs |
| Best for | DVD archives, home theatre, legacy archives | streaming services, mobile playback, broadcast |
What changes when you convert VOB to AAC
Only the soundtrack survives: the video stream is dropped, and the AC-3 audio inside the VOB file is re-encoded as AAC-LC.
The size drop is dramatic because the video stream is where nearly all the data lives. A minute of VOB runs around 49 MB; the extracted AAC is roughly 1.3 MB per minute.
Any subtitle tracks in the source are not part of an audio file and are dropped during extraction.
The source can carry more than one audio track, for example alternate languages or a commentary. Extraction takes the primary track.
About VOB to AAC Conversion
This tool takes the audio track from inside a VOB file, a DVD-Video (MPEG-2 PS) container from 1996, and saves it on its own as AAC. Everything visual is left behind.
VOB comes from DVD Forum and dates to 1996. It carries MPEG-2, which is what determines the quality ceiling of anything you convert out of it.
AAC was introduced by MPEG / Fraunhofer IIS in 1997. It carries AAC-LC, HE-AAC and has native playback on 6 of six platform categories, which is the practical reason to choose it as a target.
After converting your file, you can use Scriptivox transcription services to convert your audio to text. Perfect for meetings, interviews, podcasts, and more.
VOB to AAC: common questions
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