MP2 to VOX conversion is the process of transforming audio encoded in the MPEG-1 Layer II (MP2) format into Dialogic ADPCM (.vox) files used by telephony systems. This conversion typically involves resampling and re-encoding from a lossy, broadcast-oriented format to a narrowband, low-bit-rate ADPCM format optimized for voice prompts and IVR systems.
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Read guide →Drag your .MP2 file from your computer or use the browse function.
Confirm .vox as the selected destination format.
Click "Convert" and download your converted .VOX file once ready.
MP2 files typically have the MIME type audio/mpeg and use MPEG-1 Layer II codecs. VOX files often use the Dialogic ADPCM codec with a MIME type of audio/vox or audio/x-vox. MP2 is suited for music and broadcast audio, whereas VOX is designed for voice recordings and telephony applications requiring low bandwidth.
The VOX (.VOX) format is commonly used for audio. Understanding its characteristics can be helpful when converting to or from other formats like MP2.
While specific technical details aren't available here, VOX files generally serve the purpose of storing audio effectively within their domain.
Our online MP2 to VOX converter allows you to transform your MP2 audio files into VOX format effortlessly. Designed for speed and simplicity, this tool supports high-quality conversions without the need for installation. Whether you need VOX files for telephony or other applications, convert your MP2 files online in just a few clicks.
MP2 is a lossy audio compression format commonly used for broadcasting and music distribution, offering decent quality at moderate bitrates. VOX is a lightweight audio format optimized for voice data, typically used in telephony and voice recording devices. While MP2 focuses on general audio fidelity, VOX prioritizes compact size and compatibility with legacy telephony hardware.
Keep final VOX files small by resampling to 8000 Hz and converting to mono; VOX is optimized for narrowband voice so higher sample rates are unnecessary.
Preserve clarity by applying a gentle high-pass filter (cut below ~300 Hz) before conversion to remove low-frequency rumble that wastes ADPCM bits.
For large batches, convert in scripted batches or use command-line tools to maintain consistent settings and avoid manual errors.
Limitations: VOX is a low-bit-rate, 4-bit ADPCM format without stereo or high-fidelity support—music and wideband audio will lose detail.
This MP2 to VOX converter saved me so much time during my project.
Emily R.
Audio Engineer
Easy to use and converts with excellent quality every time.
Jason M.
Telephony Specialist
I love how fast the conversion is and that I don’t need to download anything.
Linda S.
Podcast Producer
Start your free MP2 to VOX conversion now.
Drag your file here to to upload.
Up to 250MB
Optimal file sizes: aim for short voice prompts under a few MB; long recordings will still convert but may lose intelligibility if heavily compressed.