VOB to VOX Converter
Extract VOB DVD audio as Dialogic VOX ADPCM format online
DVD to Phone Audio
Extract voice from VOB DVD files and compress as VOX ADPCM — ready for Dialogic IVR platforms and telephony prompt systems.
Highly Compressed
VOX ADPCM at 4 bits per sample keeps files tiny. Transform DVD-quality audio into compact telephony prompts instantly.
Secure Processing
VOB uploads are removed after conversion. VOX output files are deleted within 24 hours — your audio content stays private.
How to convert VOB to VOX
Select files from Computer, Google Drive, Dropbox, URL or by dragging it on the page.
Choose vox or any other format you need as a result (more than 200 formats supported)
Let the file convert and you can download your vox file right afterwards
About formats
Frequently Asked Questions
VOX is the Dialogic ADPCM standard for IVR and telephony. DVD VOB dialogue can be compressed into space-efficient phone system prompts.
VOX uses 4-bit ADPCM for roughly 4:1 compression. DVD audio shrinks to tiny telephony files — efficient for prompt storage.
No — VOX is headerless raw ADPCM. The telephony system must know the sample rate (typically 8kHz) when loading VOX files.
VOX handles speech well. Dialogue from DVD VOB sounds clear on phone systems, though music quality is significantly reduced.
Upload multiple VOB chapters and batch-convert them to VOX. Create a complete telephony prompt library from DVD audio.