WMA to WAV — Format Comparison & Online Converter
Fast, instant WMA to WAV conversion. No signup required. Just drop your .wma file and get .wav in seconds.
Batch Settings
Converting to WAV won't restore lost quality
Your WMA file has already undergone lossy compression. Converting to WAV preserves what's left — it prevents further degradation from re-saving — but it will not magically sharpen a blurry image or recover discarded audio frequencies.
Some metadata may not survive
Your WMA file may contain ASF metadata, DRM tags metadata. WAV has limited or no support for these metadata types. Location data (GPS), camera settings, and color profiles may be stripped during conversion.
お気に入りのアニメのサウンドトラックを最高の音質で楽しみたい、あるいはビジネスの重要な音声記録をクリアなWAV形式で保存したいとお考えですか？WMAファイルはかつてWindows環境で広く使われましたが、現代の多様なデバイスやプロフェッショナルな編集ソフトウェアでは、より汎用性の高いWAV形式が求められることが少なくありません。WAVは非圧縮で音源の忠実度が高く、特に繊細な音のニュアンスを大切にするクリエイティブな作業や、長期保存を目的としたアーカイブ用途に最適です。このページでは、大切なWMAファイルを、品質を損なうことなく、より広く利用可能なWAV形式へスムーズに変換する方法を、日本のユーザーの皆様のニーズに合わせて分かりやすくご案内いたします。手軽なオンラインツールから、より専門的なソフトウェアの活用まで、最適な変換方法を見つけるお手伝いをいたします。
- 同人ASMR作品の音源編集
- ビジネス会議の議事録音声データ共有
- 朗読コンテンツのアーカイブ
日本では、特に同人音楽や音声作品の分野でWAV形式が標準的に利用されており、WMAからWAVへの変換は、作品の品質保持と幅広いプラットフォームでの配布に不可欠とされています。
About WMA to WAV Conversion
WMA (introduced 1999) and WAV (introduced 1991) are both audio formats, but they differ in important ways. WMA (Windows Media Audio) is Microsoft's audio codec — less common today but still found in legacy collections. WAV is uncompressed PCM audio — studio quality with no data loss, but large file sizes.
Full Name: WMA uses Windows Media Audio, while WAV uses Waveform Audio. Compression: WMA uses Lossy, while WAV uses None (uncompressed). Typical File Size: WMA uses 1 MB per minute at 128 kbps, while WAV uses 10 MB per minute at 44.1 kHz/16-bit stereo.
When you convert WMA to WAV, the goal is to improve file compatibility across devices. Converting WMA to WAV maintains high quality with CocoConvert's optimised encoder settings. Understanding these technical differences helps you choose the right format for your workflow.
Your WMA file is decoded and re-encoded as WAV. The conversion involves 4 steps: (1) your wma file is uploaded and the format is validated, (2) the file content is decoded into its raw representation, (3) the data is re-encoded in wav format with optimal settings, (4) the converted file is ready for download.
CocoConvert's converter handles the entire pipeline server-side using FFmpeg, Sharp, and qpdf — battle-tested libraries used by streaming platforms and enterprise tools. Files are encrypted in transit and deleted within 24 hours.
This conversion is ideal when you Your WMA file won't open on a recipient's device or in an application, or when you A website, service, or platform only accepts WAV uploads. For the opposite direction, CocoConvert also supports WAV to WMA conversion.
How to Convert WMA to WAV
- 1
Upload .wma file
Select your WMA file by dragging it to the upload zone or using the file picker. Batch upload is available for multiple files.
- 2
Choose .wav
Set WAV as the output format. The converter uses optimal settings based on the WMA→WAV conversion profile.
- 3
Convert
The server-side engine decodes your WMA file and re-encodes it as WAV. Processing time depends on file size and complexity.
- 4
Download result
Grab your converted .wav file. Multiple output files can be downloaded together.
What Happens When You Convert WMA to WAV
Your WMA audio is decoded into raw PCM samples, then re-encoded as WAV. No audio quality is lost in this conversion.
Your WMA file is decoded — compressed audio becomes raw PCM waveform data
The raw audio is re-encoded using Waveform Audio's none codec
Metadata (tags, artwork, track info) is transferred where WAV supports it
The WAV file is saved and ready for download
WMA vs WAV — Detailed Comparison
| Feature | .WMA | .WAV |
|---|---|---|
| Full Name | Windows Media Audio | Waveform Audio |
| Compression | Lossy | None (uncompressed) |
| Typical File Size | 1 MB per minute at 128 kbps | 10 MB per minute at 44.1 kHz/16-bit stereo |
| Platform Support | Limited | Universal |
| Browser Support | none | Universal |
| Year Created | 1999 | 1991 |
| Open Standard | No | Yes |
Should You Convert WMA to WAV?
When to Convert
- ✓Your WMA file won't open on a recipient's device or in an application
- ✓A website, service, or platform only accepts WAV uploads
- ✓You need a file that works in web browsers
- ✓You need maximum device and software compatibility
When NOT to Convert
- ✗You're hoping to improve image/audio quality — converting lossy to lossless cannot recover lost data
Common Mistakes When Converting WMA to WAV
"Converting WMA to WAV will improve the quality"
No. WMA has already permanently discarded data during compression. Converting to WAV preserves what's left but cannot restore lost detail. The file will just be larger.
"WAV will be smaller than my WMA file"
WAV uses no compression, so the output file is often larger than a lossy WMA. If you need a small file, WAV may not be the right choice.
Frequently Asked Questions
What is the difference between WMA and WAV?
WMA (Windows Media Audio) is Microsoft's audio codec — less common today but still found in legacy collections. WAV is uncompressed PCM audio — studio quality with no data loss, but large file sizes. Full Name: WMA uses Windows Media Audio, while WAV uses Waveform Audio. Compression: WMA uses Lossy, while WAV uses None (uncompressed). Typical File Size: WMA uses 1 MB per minute at 128 kbps, while WAV uses 10 MB per minute at 44.1 kHz/16-bit stereo.
Does WMA to WAV conversion affect quality?
Converting WMA to WAV maintains high quality with CocoConvert's optimised encoder settings.
Which format has better compression, WMA or WAV?
WMA uses lossy compression. WAV uses none compression. The better choice depends on whether you prioritize file size or quality.
How long does WMA to WAV conversion take?
Most conversions finish in seconds. Larger files or complex audio content may take 10–30 seconds. CocoConvert processes files in parallel for batch jobs.
Is WMA or WAV better for long-term storage?
WAV is better for archival since it preserves all original data.
Versions are pinned in our worker Dockerfile and re-built via CI on every change.