CONVERT WMA → WAV (WMA to WAV)
Convert WMA to uncompressed WAV
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HOW TO CONVERT WMA → WAV
Upload the WMA
Drop or select your WMA file. The upload is encrypted and the file is queued for conversion.
Transcode via FFmpeg
FFmpeg decodes the WMA stream to PCM internally, then re-encodes as WAV at the bitrate you select.
Download the WAV
The WAV is delivered as a direct download; metadata and cover art transfer automatically where possible.
WMA (Windows Media Audio) is a lossy codec developed by Microsoft that uses modified discrete cosine transform compression. When you convert WMA to WAV, you are decoding the compressed audio stream back into a raw, uncompressed PCM (Pulse-Code Modulation) container. The practical trigger for this conversion is almost always compatibility or processing headroom: WMA is a proprietary format with limited native support outside Windows ecosystems, while WAV with PCM is universally readable by every digital audio workstation, video editor, game engine, broadcast system, and audio hardware interface ever made. If you have WMA recordings from Windows Media Player, Xbox voice captures, or Windows Sound Recorder, converting to WAV unlocks them for any downstream use without fighting codec negotiation. The critical caveat is that the losses WMA introduced during its original encoding are permanent — PCM/WAV is lossless as a container, but it faithfully preserves the artifacts WMA already baked in. You are not recovering the original source; you are decoding what survived the lossy stage into an editable, universally compatible format.
Why convert WMA to WAV
WMA's codec is proprietary and relies on Microsoft's decoder libraries, which ship natively only on Windows. macOS handles WMA playback only through QuickTime Player with a plugin, and Linux support requires the wmadec component inside FFmpeg or GStreamer. Professional DAWs — Logic Pro, Ableton Live, Pro Tools — do not accept WMA natively. WAV/PCM has no such dependency: its decoding is arithmetic, not patent-encumbered, and every platform supports it without installing anything. Beyond compatibility, WAV files can be loaded sample-accurately into editors and re-encoded to any target format without carrying a second generation of lossy compression on top of WMA's existing losses.
WMA vs WAV — Technical specifications
Side-by-side comparison of the technical details.
WMA
- MIME type
- audio/x-ms-wma
- Extension
- .wma
- Container
- ASF (Advanced Systems Format)
- Variants
- WMA Standard, WMA Pro, WMA Lossless, WMA Voice
- Max bitrate
- 768 kbps (WMA Pro)
- MIME Type
- audio/x-ms-wma
- Category
- Audio Files
- Full Name
- Windows Media Audio
- Conversion Engine
- FFMPEG
WAV
- MIME type
- audio/wav
- Extension
- .wav
- Container
- RIFF
- MIME Type
- audio/wav
- Category
- Audio Files
- Full Name
- WAV Audio
- Conversion Engine
- FFMPEG
- Typical codec
- PCM (uncompressed)
- Bit depth
- 8, 16, 24, 32 bit integer or float
- Sample rate
- Up to 384 kHz
- Max size
- 4 GB (standard WAV), unlimited (RF64 / W64)
| Specification | WMA | WAV |
|---|---|---|
| MIME type | audio/x-ms-wma | audio/wav |
| Extension | .wma | .wav |
| Container | ASF (Advanced Systems Format) | RIFF |
| Variants | WMA Standard, WMA Pro, WMA Lossless, WMA Voice | — |
| Max bitrate | 768 kbps (WMA Pro) | — |
| MIME Type | audio/x-ms-wma | audio/wav |
| Category | Audio Files | Audio Files |
| Full Name | Windows Media Audio | WAV Audio |
| Conversion Engine | FFMPEG | FFMPEG |
| Typical codec | — | PCM (uncompressed) |
| Bit depth | — | 8, 16, 24, 32 bit integer or float |
| Sample rate | — | Up to 384 kHz |
| Max size | — | 4 GB (standard WAV), unlimited (RF64 / W64) |
WMA vs WAV — Strengths and limitations
What each format does best, and where it falls short.
WMA Strengths
- Good quality at low bitrates (32-64 kbps) — outperformed MP3 in that range.
- Native playback on every Windows version 2000 through 10.
- Lossless variant available (WMA Lossless) for archiving.
- Supports multichannel 5.1 surround audio.
Limitations
- Proprietary — poor support outside Windows and Windows Media Player.
- DRM variants made files brittle — many purchased tracks became unplayable when stores shut down.
- Ecosystem abandoned — no modern editors, hardware decoders, or streaming services use WMA.
WAV Strengths
- Bit-perfect, uncompressed audio — the professional studio standard.
- Universally supported for playback, editing, and analysis.
- No re-encoding penalty — edit and save repeatedly with zero quality loss.
- Simple internal structure — easy to parse programmatically.
- Supports up to 32-bit float and 384 kHz sample rates.
Limitations
- Enormous file sizes — 10 MB per minute for CD-quality stereo.
- 4 GB size limit for standard WAV (RF64/W64 variants extend it but break compatibility).
- No native support for cover art or rich metadata.
Quality & Compatibility
WMA Standard operates at bitrates typically ranging from 32 kbps to 192 kbps, encoding audio at either 44.1 kHz or 48 kHz sample rate, usually in 16-bit depth. The resulting WAV will match exactly whichever sample rate and bit depth the WMA file specified internally — the decoder outputs PCM at those parameters. There is no alpha channel or color space consideration here; the relevant fidelity axis is frequency response and dynamic range. WMA's MDCT compression discards audio content it classifies as perceptually irrelevant, meaning transient detail, high-frequency content above roughly 16–18 kHz (at lower bitrates), and low-level reverb tails may be reduced or missing. The WAV output will be bit-for-bit identical to the decoded WMA stream, but that decoded stream already carries those omissions. No metadata embedded in WMA tags (title, artist, album) transfers into a WAV container by default, because WAV's INFO chunk metadata format differs from WMA's ASF attribute structure — expect tags to be dropped unless the converter explicitly maps them.
Tips for Best Results
- Check the source bitrate before converting: a WMA file encoded at 64 kbps or below will produce a WAV that sounds noticeably thin, and no amount of post-processing can restore the discarded frequencies — if the source quality is low, know that before committing to a WAV workflow.
- If you plan to re-encode the WAV output to another lossy format such as MP3 or AAC, keep the WAV as an intermediate archive only — chaining lossy codecs compounds the degradation, so encode directly from the WAV to your final format rather than converting the WAV multiple times.
- WMA Pro and WMA Lossless are distinct variants from WMA Standard: WMA Lossless files will decode to a WAV that is bit-for-bit identical to the original uncompressed source, which is the one case where the output WAV genuinely restores full original fidelity — look at the file's codec identifier if you are unsure which variant you have.
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 WAV 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 WMA container to the WAV container automatically where both formats support them. If a tag field has no WAV equivalent, it is dropped silently. Use any tag editor (Mp3tag, MusicBrainz Picard) to fine-tune afterwards.
Windows Media Audio
Source formatWMA is a proprietary Microsoft audio format from the Windows Media framework. Once common in the Windows ecosystem, it has been largely replaced by AAC and MP3 for general use.
WAV Audio
Target formatWAV is an uncompressed audio format that preserves full audio fidelity. Files are large but provide lossless, CD-quality sound. It is the standard working format in audio production and editing.
Going the other way? Convert WAV back to WMA with the same engine.
Common Use Cases
Share across platforms
Send WAV files to anyone without worrying about whether they have the right software for WMA.
Embed in documents
Drop WAV output into Word, Google Docs, PowerPoint, Notion or a website without conversion warnings.
Optimize size
WAV often produces smaller files than WMA 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.
WMA vs WAV — Typical file sizes
Approximate file sizes for common scenarios.
- 3-min song (128 kbps) 3 MB
- 3-min song (Lossless) 25-35 MB
- 1-hour talk (64 kbps) 28 MB
- Song (4 min, CD quality) 40 MB
- Voice memo (1 min, 16-bit 44.1 kHz) 10 MB
- Studio master (1 min, 24-bit 96 kHz) 33 MB
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Related comparisons
See these formats side by side to understand which fits your use case best.
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