FLAC to VOX Converter
Encode lossless FLAC as Dialogic ADPCM VOX audio
Best VOX Quality
Lossless FLAC gives the Dialogic encoder pristine audio — clearest IVR prompts.
IVR Standard
VOX is what telephony hardware expects — produce from lossless FLAC.
Online Encoding
No Dialogic SDK needed — convert FLAC to VOX in your browser.
How to convert FLAC 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 (Dialogic ADPCM) is the IVR standard. Lossless FLAC produces the cleanest possible telephony voice prompts.
Dialogic boards, IVR platforms, PBX systems, and call center audio infrastructure consume VOX files.
No — VOX is speech-optimized at 4-bit ADPCM. It handles voice well but degrades music.
Yes — lossless input means cleaner ADPCM encoding with no stacked artifacts.
Upload all FLAC voice prompts and encode to VOX at once.