Convert Opus to WMA
Convert any audio file to WMA format online for free. Fast, secure, and easy-to-use audio to WMA converter with no software installation required.
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Max file size: 50 MBMax duration: 30 min
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Why Choose Scriptivox Opus to WMA Converter?
Fast Conversion
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Your files are encrypted and automatically deleted after conversion. We never store or share your data.
No Installation
Works directly in your web browser. No software download or installation required.
How to Use Opus → WMA
Upload File
Drag and drop your Opus file or click to browse. Supports files up to 1GB.
Convert
Select WMA as your output format and click convert. Our servers will process your file instantly.
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Download your converted file instantly. The download link expires in 1 hour for security.
Opus vs WMA: format comparison
How the two formats differ on the things that change your result.
| Specification | Opus (source) | WMA (result) |
|---|---|---|
| Container | Ogg | ASF |
| Developed by | Xiph.Org / IETF | Microsoft |
| Introduced | 2012 | 1999 |
| Audio codecs | Opus | WMA, WMA Pro |
| Compression | Lossy | Lossy |
| Typical bitrate | 64–256 kbps | 64–192 kbps |
| Max sample rate | 48 kHz | 48 kHz |
| Max channels | 255 | 8 |
| Gapless playback | Yes | No |
| Metadata / tags | Vorbis comments | ASF / WM tags |
| Approx. file size | 0.48–1.44 MB per minute | 0.48–1.44 MB per minute |
| Licensing | Royalty-free | Proprietary |
| Plays natively on | Native: Web browsers, Android · Needs a player: Windows, macOS, iOS | Native: Windows · Needs a player: macOS, iOS, Android |
| Best for | voice and calls, podcasts, web delivery | Windows media libraries, legacy archives |
What changes when you convert Opus to WMA
Both Opus and WMA are lossy, so this conversion decodes Opus and re-encodes it as WMA. That second encode adds its own loss on top of the first. Choosing a higher bitrate, up to 192 kbps, keeps the damage small enough to be inaudible in most material.
Opus supports up to 255 channels, WMA up to 8. Surround material is folded down rather than carried through untouched.
If the audio is a continuous mix, note that WMA does not preserve gapless boundaries the way Opus does, so you may hear a small gap between tracks.
The two formats are aimed at different jobs. Opus is typically used for voice and calls, podcasts, web delivery, while WMA is the usual pick for Windows media libraries, legacy archives. That difference in intent is what most of the specification gaps above come from.
Expect metadata to be rewritten rather than copied: Vorbis comments in the source becomes ASF / WM tags in the result. Standard fields map cleanly; niche custom tags often do not.
About Opus to WMA Conversion
This page converts Opus files, stored in the Ogg container since 2012, into WMA, which uses ASF and dates from 1999. The differences between the two containers decide what changes in the result.
Opus comes from Xiph.Org / IETF and dates to 2012. It carries Opus, which is what determines the quality ceiling of anything you convert out of it.
WMA was introduced by Microsoft in 1999. It carries WMA, WMA Pro and has native playback on 1 of six platform categories, which is the practical reason to choose it as a target.
After converting your file, you can use Scriptivox transcription services to convert your audio to text. Perfect for meetings, interviews, podcasts, and more.
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