Convert DVD Video Object (.vob) to Apple Lossless Audio Codec (.alac) online for free. Fast, secure video conversion with no watermarks or registration.
Conversion settings — add a file to adjust
Upload your .vob file by dragging it into the upload area or clicking to browse.
Choose your output settings. The default settings work great for most files.
Click Convert and download your .m4a file when it's ready.
DVD VOB files contain audio in AC3 (Dolby Digital), DTS, or LPCM formats — often at quality levels well above consumer listening standards. ALAC (Apple Lossless Audio Codec) compresses audio to 50-60% of PCM size with zero data loss. Open-sourced by Apple in 2011, ALAC is natively supported across the entire Apple ecosystem — iPhone, iPad, Mac, Apple TV, and Apple Music.
Extracting DVD audio to ALAC creates lossless, compressed audio files that integrate perfectly with Apple devices and services. ALAC is smaller than uncompressed AIFF/WAV while maintaining identical decoded quality. For building Apple Music libraries from DVD concert recordings or film soundtracks, ALAC is the ideal format.
ALAC also serves as an archival master from which any lossy format (AAC, MP3) can be derived without cascading quality loss.
FFmpeg reads the VOB program stream, decodes AC3/DTS/LPCM audio to raw PCM, and encodes using the ALAC encoder into an M4A container. The output supports 16-bit to 32-bit depth and sample rates up to 384 kHz. DVD audio at 48 kHz maps to 16-bit/48 kHz ALAC. Compression achieves roughly 50-60% of PCM size while maintaining bit-perfect decode quality.
ALAC losslessly preserves every sample of the decoded DVD audio. From LPCM sources, the result is identical to the disc master. From AC3/DTS (lossy), the ALAC captures the full decoded quality without additional loss. The Apple Music Lossless badge appears for ALAC content.
| Device | VOB | ALAC |
|---|---|---|
| Windows PC | Partial | Partial |
| macOS | Partial | Native |
| iPhone/iPad | Partial | Native |
| Android | Partial | Partial |
| Linux | Partial | Partial |
| Web Browser | No |
Resolution: 1920x1080
Bitrate: 8-12 Mbps
H.264 recommended for fast processing
Resolution: 1080x1080
Bitrate: 3.5 Mbps
Square or 9:16 for Reels
Resolution: 1080x1920
Bitrate: 4 Mbps
9:16 vertical, under 60s ideal
Resolution: 1280x720
Bitrate: 5 Mbps
Under 140s, 512MB max
Resolution: 960x540
Bitrate: 2 Mbps
16MB limit for standard, 64MB for document
Resolution: 1280x720
Bitrate: 4 Mbps
VOB to ALAC provides the ideal Apple-ecosystem format for archiving DVD audio collections with lossless quality and meaningful compression savings.
Biztonsagos atvitel
HTTPS titkositott feltoltes
Adatvedelmi prioritas
A fajlok feldolgozas utan automatikusan torlodnek
Regisztracio nem szukseges
Azonnal kezdhet konvertalni
Mindenhol mukodik
| No |
8MB free, 50MB Nitro
Barmely bongeszo, barmely eszkoz
| Jellemzo | VOB | ALAC |
|---|---|---|
| Teljes nev | DVD Video Object | Apple Lossless Audio Codec |
| Kiterjesztes | .vob | .m4a |
| Leginkabb ajanlott | DVD format | Lossless |