Convert WMV to Opus Online Free
Extract the audio from your WMV Windows Media Video and encode it as Opus — the modern open codec with best-in-class efficiency. Perfect for streaming, Discord bots, and cross-platform audio delivery.
ChangeThisFile extracts audio from your WMV Windows Media Video and encodes it as Opus using FFmpeg on our secure servers. Opus outperforms WMA at every bitrate and is fully open-source, ideal for streaming and Discord. Files are auto-deleted, free with no signup required.
Convert WMV to Opus
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Drag & drop your .wmv file here, or click to browse
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WMV vs Opus: Format Comparison
Key differences between the two formats
| Feature | WMV | Opus |
|---|---|---|
| Type | Microsoft proprietary video | Open audio codec in OGG container |
| Developer | Microsoft | Xiph.Org / IETF RFC 6716 |
| Audio codec | WMA (Windows-proprietary) | Opus — state-of-the-art open codec |
| License | Proprietary Microsoft format | Open-source, royalty-free |
| Quality at low bitrate | WMA degrades below 64 kbps | Excellent even at 32 kbps |
| Use case | Windows video ecosystem | WebRTC, Discord, streaming, open platforms |
| Latency | Standard playback | Ultra-low latency (5ms algorithmic) |
When to Convert
Common scenarios where this conversion is useful
Convert WMV audio for Discord bot playback
Discord voice channels use Opus natively. Convert WMV corporate or media audio to Opus to use in Discord bots with native Opus support — no real-time transcoding needed and minimal audio processing overhead.
Create compact audio from WMV training videos for streaming
Opus at 64 kbps delivers better quality than WMA at 128 kbps. Extract audio from WMV training content and encode as Opus for highly efficient streaming delivery over bandwidth-constrained connections.
Port Windows corporate audio to open WebRTC infrastructure
WebRTC uses Opus for all audio. Converting WMV corporate recordings to Opus enables their integration into browser-based communication systems and WebRTC pipelines without proprietary Windows codec dependencies.
Build open audio archive from WMV media library
Opus is royalty-free and actively maintained. Converting a WMV media library to Opus creates a compact, cross-platform audio archive free from Microsoft licensing concerns and compatible with all modern open-source media tools.
Prepare WMV meeting recordings for web embedding
Opus is the preferred format for web audio. Convert WMV meeting or webinar recordings to Opus for embedding in modern web pages or web applications with native HTML5 audio support in all major browsers.
How to Convert WMV to Opus
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1
Upload your WMV file
Drag and drop your .wmv file onto the converter or click to browse and select it. Files up to 500MB are supported.
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2
Server-side Opus encoding
Your WMV is uploaded over HTTPS and FFmpeg extracts and decodes the WMA audio stream, encoding it as Opus in an OGG container. The video stream is discarded. Processing completes in seconds.
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3
Download your Opus file
Click Download to save the .opus file. Both the original WMV and Opus output are automatically deleted from our servers after download.
Frequently Asked Questions
Opus is a more modern codec that outperforms WMA at comparable bitrates, especially below 64 kbps. Opus is also fully open-source with no licensing restrictions, while WMA is proprietary. For modern audio delivery, Opus is the superior choice.
Yes. Both WMA and Opus are lossy. Re-encoding from WMA to Opus adds a small additional quality reduction. At high Opus target bitrates (128 kbps+), this difference is typically inaudible for most listeners.
Opus files use the .opus extension. The audio is stored in an OGG container per RFC 7845. Some systems may display it as .ogg.
Yes. Chrome, Firefox, Edge, and Opera support Opus natively via HTML5 audio. Safari added Opus support in version 16. Opus is the recommended format for HTML5 audio in modern web applications.
Yes. Discord voice channels use Opus internally. discord.js with @discordjs/opus and discord.py with PyNaCl support native Opus file playback without re-encoding overhead.
FFmpeg encodes Opus at a high variable bitrate by default, typically 128 kbps. At this bitrate, Opus is generally transparent — indistinguishable from lossless for most listeners.
Yes. Android 5.0 (Lollipop) and later support Opus natively. VLC also supports Opus on all Android versions.
DRM-protected WMV files cannot be converted. FFmpeg requires access to the unprotected audio stream. Only non-DRM WMV files can be converted to Opus.
Yes. ChangeThisFile is completely free. No signup, no limits, and no fees. Opus is also royalty-free.
Yes. All uploads are HTTPS-encrypted and files are deleted from our servers immediately after conversion. We never retain or access your content.
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