M2V to GSM Converter
Processing entirely on your device — large files may take a moment.
Convert GSM speech recordings to WAV or MP3. If your files are still in M2V format, this page is the shortcut: M2V is a raw MPEG-2 video elementary stream — DVD and broadcast video stripped of its container, the export format of choice of many editors.
This converter runs entirely in your browser using WebAssembly — your files never leave your device, nothing is uploaded, and there are no watermarks, sign-ups or queues. Drop in several files at once to convert them as a batch.
How M2V compares to GSM
| M2V | GSM | |
|---|---|---|
| Structure | MPEG-2 sequence + GOPs | Raw GSM frames (33 bytes/20ms) |
| Types / schema | Elementary video stream | Lossy speech codec (RPE-LTP) |
| Compatibility | ffmpeg, DVD authoring tools | Asterisk, SoX, ffmpeg |
| Best for | DVD/master archive repackaging | Telephony recordings |
How to convert M2V to GSM
- 1
Select your files
Select your M2V video.
- 2
Convert instantly
The engine demuxes the container and encodes the audio track into your chosen format.
- 3
Download results
Download the GSM audio — the video track is simply dropped.
About the M2V format
M2V is the MPEG-2 video elementary stream — the video layer of DVDs and digital broadcast, exported bare by editors who want to mux it with audio separately. It is the professional half of a DVD's guts.
Muxing M2V with its audio into MP4 or MKV restores a playable file; the video often stream-copies without re-encoding since MPEG-2 data is already valid in modern containers.
+ Strengths
- ✓Broadcast/DVD grade MPEG-2 quality
- ✓Often stream-copyable without re-encode
- ✓Standard editor export format
! Limitations
- −No audio inside — pair it before muxing
- −Large for HD (MPEG-2 efficiency)
- −Interlaced flags need care
About the GSM format
GSM 06.10 is the speech codec of the original GSM mobile network — 13 kbit/s RPE-LTP that made digital cellphone calls possible in 1991 and still lives inside VoIP systems, old answering machines and Asterisk PBX recordings.
It is lossy speech, not music: converting GSM to WAV or MP3 preserves intelligibility perfectly while finally letting desktop players open the file without special codecs.
+ Strengths
- ✓Tiny bitrate for speech intelligibility
- ✓Ubiquitous in telephony systems
- ✓Decodes natively via ffmpeg
! Limitations
- −Speech-only quality — music falls apart
- −13 kbit/s artifacts are audible
- −8000 Hz sample rate only
Why convert M2V to GSM?
There is a concrete reason this conversion exists: No audio inside — pair it before muxing GSM sidesteps that — Tiny bitrate for speech intelligibility If that is your situation, the tool above settles it in seconds, entirely on your device.
Frequently asked questions
Is this M2V to GSM converter really free?
Yes — completely free, with no sign-up, no watermark and no daily conversion limits. The site is supported by advertising.
Are my files uploaded to a server?
No. The conversion runs entirely inside your browser using WebAssembly, so your files never leave your device — that is what makes it instant and private.
Does it work on Windows, Mac, iPhone and Android?
Yes. Anything with a modern browser works: Windows, macOS, Linux, Android and iOS. No software installation is required.
Is there a file size limit for M2V to GSM?
The only limit is your device's memory, since nothing is uploaded. Files up to a few hundred megabytes work fine on a modern desktop browser; very large files simply take a little longer.
Does converting M2V to GSM re-encode my video?
Yes. The video is decoded and re-encoded with the settings chosen by the quality slider, which is what allows the format and size to change. For an archival copy, keep higher quality; for sharing, lower quality gives a much smaller file.
Will the audio track be kept?
Yes. The audio is carried over and re-encoded to the standard audio codec of GSM, staying in sync with the video. If your M2V file has multiple audio tracks, the first one is used.