MPEG to DVMS Converter

Extract audio from MPEG as DVMS voice mail format

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Voice Mail Audio

DVMS is designed for voice messaging systems. Extract MPEG audio into the format your voice mail infrastructure expects.

Compact Voice Files

DVMS produces small voice-optimized files from MPEG. Ideal for messaging systems with limited storage capacity.

Web-Based Tool

No telephony software installation required. Convert MPEG to DVMS directly in your browser on any device.

How to convert MPEG to DVMS

1

Select files from Computer, Google Drive, Dropbox, URL or by dragging it on the page.

2

Choose dvms or any other format you need as a result (more than 200 formats supported)

3

Let the file convert and you can download your dvms file right afterwards

About formats

MPEG (MPEG-1) is a foundational video and audio compression standard published in August 1993 by the Moving Picture Experts Group as ISO/IEC 11172. It was the first international standard for lossy compression of moving pictures and associated audio, establishing principles and techniques that would influence virtually all subsequent video codecs. MPEG-1 video achieves compression through a combination of motion-compensated prediction, discrete cosine transform coding, and variable-length entropy encoding, organized around three frame types: I-frames (intra-coded), P-frames (predicted), and B-frames (bidirectionally predicted). The standard targets bit rates around 1.5 Mbps for combined audio and video, producing quality comparable to VHS tape at SIF resolution (352x240 for NTSC). This compression level was specifically chosen to match the data throughput of 1x-speed CD-ROM drives, enabling the Video CD format that brought digital video to consumers in the early 1990s. The audio component, particularly Layer III (MP3), went on to become the most influential audio format in history. The I/P/B frame structure, motion estimation approach, and block-based transform coding established the architectural template followed by every major video codec since, from MPEG-2 through H.264 and beyond. Though long surpassed in compression efficiency, MPEG-1 remains supported by virtually all media software.
Initial release: August 1993
DVMS (Dutch Voice Messaging System) is a telephony-grade audio encoding born from the Netherlands' early push toward digital voicemail infrastructure. Deployed through KPN (formerly PTT Telecom) in the mid-1980s, the format stores mono voice data at a narrow 8 kHz sample rate, prioritizing compact message size over sonic breadth. Audio is compressed with a proprietary variant of logarithmic companding similar to European A-law encoding, squeezing recordings to roughly 8 kbit/s while keeping speech intelligible. Each file carries a small header identifying sample rate, compression type, and message metadata, which made automated routing across early PBX and voicemail systems straightforward. Although DVMS never gained traction outside Dutch telecom circles, it influenced how European carriers designed later voice messaging protocols. Tools like SoX and several legacy telephony libraries still read and write DVMS files, allowing archival playback of decades-old messages. Among its practical advantages: extremely small file sizes (a one-minute message occupies roughly 60 KB), reliable speech clarity despite aggressive compression, and a simple container layout that is easy to parse programmatically.
Developer: Dutch PTT Telecom
Initial release: 1984

Frequently Asked Questions

Why convert MPEG to DVMS?

DVMS is a voice mail audio format. Converting MPEG to DVMS produces audio compatible with specific voice messaging systems.

What opens DVMS files?

Voice mail systems, SoX, and telephony processing software handle DVMS files for playback and integration.

Is DVMS a standard format?

DVMS is a specialized telephony format with limited use outside voice mail and messaging infrastructure.

Does DVMS sound good?

DVMS is optimized for speech clarity rather than high fidelity. Voice content sounds clear; music will not reproduce well.

Can I process multiple files?

Yes — batch upload multiple MPEG files and convert each to DVMS simultaneously.