CONVERT
OPUS → WV
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Fast, secure OPUS to WV conversion. No registration required.
Here is the short version — Opus is the modern low-latency royalty-free codec used in VoIP, streaming, and WebRTC. Hence the need for WV. Converting OPUS to WV changes the audio container without re-recording anything. Whether you are moving from a studio master to a distribution format or just making a file playable on an old car stereo, KaijuConverter re-encodes the audio with FFmpeg at your chosen bitrate and preserves sample rate, channels and ID3 tags. The source OPUS file stays untouched. One more beat. Opus is the modern low-latency royalty-free codec used in VoIP, streaming, and WebRTC. Receiving format: WV is WavPack's hybrid lossless/lossy audio codec with a correction-file workflow.
Opus Audio
Source formatOpus is a versatile, open-source audio codec optimized for both speech and music at very low bitrates. It is the standard for WebRTC voice calls and excels at real-time communication.
WavPack Audio
Target formatWavPack is an open-source audio codec that offers lossless, lossy, and hybrid compression modes. Its unique hybrid mode creates a lossy file plus a correction file that together reconstruct the original, enabling flexible storage strategies.
Why convert OPUS to WV
Opus Audio is great in its own niche, but WavPack Audio is either more universally playable or better suited to the device you are targeting. Converting lets you ship the audio without asking listeners to install a codec. The loss in quality between the two is negligible at sensible bitrates.
HOW TO CONVERT
OPUS → WV
Upload the OPUS
Drop or select your OPUS file. The upload is encrypted and the file is queued for conversion.
Transcode via FFmpeg
FFmpeg decodes the OPUS stream to PCM internally, then re-encodes as WV at the bitrate you select.
Download the WV
The WV is delivered as a direct download; metadata and cover art transfer automatically where possible.
Common Use Cases
Share across platforms
Send WV files to anyone without worrying about whether they have the right software for OPUS.
Embed in documents
Drop WV output into Word, Google Docs, PowerPoint, Notion or a website without conversion warnings.
Optimize size
WV often produces smaller files than OPUS for web, email and storage.
Archive & future-proof
Store in a widely-supported format that will still open on future operating systems without legacy plugins.
OPUS vs WV — Strengths and limitations
What each format does best, and where it falls short.
OPUS Strengths
- Best-in-class quality across the entire bitrate range.
- Royalty-free and patent-free.
- Ultra-low latency — suitable for live voice and music.
- Handles speech and music equally well — no need to switch codecs.
- Mandatory codec in WebRTC, so supported in every browser by design.
Limitations
- Very low hardware decoder adoption — software-only on most phones.
- Older platforms (legacy Windows apps, old cars) may not play .opus files.
- Container semantics confusing — Opus lives inside Ogg, WebM, or MP4.
WV Strengths
- Hybrid lossy/lossless mode.
- Supports DSD, 32-bit float, multichannel.
- Competitive compression vs FLAC.
- Active maintenance since 1998.
Limitations
- Small ecosystem.
- Hybrid mode complexity.
- Hardware support limited vs FLAC.
OPUS vs WV — Technical specifications
Side-by-side comparison of the technical details.
OPUS
- MIME type
- audio/opus
- Extensions
- .opus, .ogg (container)
- Standard
- RFC 6716 (2012)
- Sample rates
- 8, 12, 16, 24, 48 kHz
- Latency
- 5-60 ms (configurable)
WV
- MIME type
- audio/x-wavpack
- Extension
- .wv (main), .wvc (correction)
- Modes
- Lossless, Hybrid lossy+correction, 32-bit float
- License
- BSD-style
| Specification | OPUS | WV |
|---|---|---|
| MIME type | audio/opus | audio/x-wavpack |
| Extensions | .opus, .ogg (container) | — |
| Standard | RFC 6716 (2012) | — |
| Sample rates | 8, 12, 16, 24, 48 kHz | — |
| Latency | 5-60 ms (configurable) | — |
| Extension | — | .wv (main), .wvc (correction) |
| Modes | — | Lossless, Hybrid lossy+correction, 32-bit float |
| License | — | BSD-style |
OPUS vs WV — Typical file sizes
Approximate file sizes for common scenarios.
OPUS
- Voice call (24 kbps) 180 KB/min
- Podcast (48 kbps) 21 MB/hour
- Music (128 kbps) ~1 MB/min
- High-fidelity music (160 kbps) ~1.2 MB/min
WV
- 3-min song (CD lossless) 18-24 MB
- 3-min hi-res 24/96 60-90 MB
Quality & Compatibility
Lossy-to-lossy transcoding (most cross-format audio jobs) loses a tiny amount of quality on each pass — usually inaudible at our default VBR ~190 kbps for music or 96 kbps for speech. Lossy-to-lossless conversions freeze the existing quality but cannot improve it; lossless-to-lossy is only as good as the target bitrate you choose.
Tips for Best Results
- Pick 128 kbps for podcasts and voice, 192–256 kbps for music, 320 kbps only if the audio will be edited further downstream.
- Keep the OPUS master alongside the WV — re-encoding a lossy format twice accumulates audible artefacts.
- For mono voice content, convert to mono WV explicitly to halve file size without any quality loss.
Frequently Asked Questions
Lossy-to-lossy conversions (most combinations) re-compress the audio, which technically introduces some loss. At a 192 kbps or higher target it is inaudible on normal equipment. Lossy-to-lossless conversions freeze the existing quality but cannot improve it; lossless-to-lossy transcodes are only as good as the target bitrate you choose.
For voice content (podcasts, audiobooks, lectures) 128 kbps is indistinguishable from higher bitrates. For music, 192-256 kbps covers most listening; 320 kbps is the ceiling for WV and the right choice for audio you plan to edit further. Above that, prefer a lossless target instead.
Yes. Title, artist, album, year and cover art travel from the OPUS container to the WV container automatically where both formats support them. If a tag field has no WV equivalent, it is dropped silently. Use any tag editor (Mp3tag, MusicBrainz Picard) to fine-tune afterwards.
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Read guideSecure & Private Conversion
Your files are encrypted during transfer, processed in isolated containers, and automatically deleted within 60 minutes. We never read, share, or store your data.