How-to guide
How to extract audio from a WMV file
WMV is Microsoft's Windows Media container, common in legacy corporate training decks and older PowerPoint exports. It is proprietary, but modern browsers decode its audio payload (WMA) well enough to pull a clean track out.
WMA audio on very old WMV files was often 64 kbps mono — good enough for voice, not for music. Your WAV export will be bit-perfect to what the source holds, so a 64 kbps mono source will still sound like 64 kbps mono, just decoded to uncompressed PCM.
Step-by-step
- Open VideoSplit.io. Any recent Chrome, Firefox, Edge or Safari build.
- Drop your .wmv file. Drag and drop. Size limit is your browser memory.
- Pick WAV or MP3. WAV gives you a clean decode of whatever WMA was inside. MP3 re-encodes to 320 kbps — overkill for most old WMV sources, but it keeps the file small and universally playable.
- Download. Saves as .wav or .mp3 with the original filename.
Tips for better results
- WMV-HD files (1080p corporate training) work just as well as standard WMV.
- DRM-protected WMV files (common with older commercial downloads) cannot be decoded in any browser — that is a DRM limitation, not a VideoSplit one.
- If you have a batch of WMV lecture recordings, process them one at a time; running multiple decodes in parallel tabs will choke a low-RAM laptop.
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