WAV to WMA — Format Comparison & Online Converter
Fast, instant WAV to WMA conversion. No signup required. Just drop your .wav file and get .wma in seconds.
Batch Settings
Quality reduction ahead
WAV is uncompressed, meaning every bit of data is preserved. WMA uses lossy compression — some data is permanently discarded to reduce file size. At high quality settings the difference is usually imperceptible, but the original data cannot be recovered.
Some metadata may not survive
Your WAV file may contain RIFF chunks, BWF metadata metadata. WMA has limited or no support for these metadata types. Location data (GPS), camera settings, and color profiles may be stripped during conversion.
What compression artifacts to expect
WMA lossy compression can produce smearing, loss of high-frequency detail. At the high quality settings CocoConvert uses by default, these are usually invisible to the eye. Lower quality settings trade visual fidelity for smaller file sizes.
大切な音声データ、WAV形式からWMA形式への変換でお困りではありませんか？クリアな音質を保ちつつ、ファイルサイズを効率的に抑えたいというご要望は少なくありません。特にビジネスの場や、限られたデータ容量の中で音源を管理する必要がある場合、WMAはその真価を発揮します。当社の変換ツールは、複雑な設定なしに、どなたでも簡単に高品質な変換を実現できるよう設計されています。お気に入りのアニメのサウンドトラックや、大切な会議の録音データなど、様々なWAVファイルをWMAに変換し、より快適なデジタルライフをお楽しみください。ファイル形式の壁を越え、あなたの音声データを最適な形で活用するためのお手伝いをいたします。
- ビジネス会議の音声記録を軽量化
- 同人音楽・ボイスドラマの配布用ファイル
- 携帯端末でのアニメ主題歌の保存
かつて日本のガラケー（フィーチャーフォン）ではWMA形式が広くサポートされており、現在でも古い音響機器や一部のカーオーディオで互換性が重視されることがあります。
About WAV to WMA Conversion
WAV (introduced 1991) and WMA (introduced 1999) are both audio formats, but they differ in important ways. WAV is uncompressed PCM audio — studio quality with no data loss, but large file sizes. WMA (Windows Media Audio) is Microsoft's audio codec — less common today but still found in legacy collections.
Full Name: WAV uses Waveform Audio, while WMA uses Windows Media Audio. Compression: WAV uses None (uncompressed), while WMA uses Lossy. Typical File Size: WAV uses 10 MB per minute at 44.1 kHz/16-bit stereo, while WMA uses 1 MB per minute at 128 kbps.
When you convert WAV to WMA, the goal is to reduce file size without visible quality loss. WMA lossy compression can produce smearing, loss of high-frequency detail. At the high quality settings CocoConvert uses by default, these are usually invisible to the eye. Lower quality settings trade visual fidelity for smaller file sizes. Understanding these technical differences helps you choose the right format for your workflow.
Your WAV file is decoded and re-encoded as WMA. The conversion involves 4 steps: (1) your wav 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 wma 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 WAV file is too large for email attachments or upload limits, or when you You want to reduce storage usage without noticeably affecting quality. For the opposite direction, CocoConvert also supports WMA to WAV conversion.
How to Convert WAV to WMA
- 1
Upload .wav file
Select your WAV file by dragging it to the upload zone or using the file picker. Batch upload is available for multiple files.
- 2
Choose .wma
Set WMA as the output format. The converter uses optimal settings based on the WAV→WMA conversion profile.
- 3
Convert
The server-side engine decodes your WAV file and re-encodes it as WMA. Processing time depends on file size and complexity.
- 4
Download result
Grab your converted .wma file. Multiple output files can be downloaded together.
What Happens When You Convert WAV to WMA
Your WAV audio is decoded into raw PCM samples, then re-encoded as WMA. Some audio data is permanently discarded during compression.
Your WAV file is decoded — compressed audio becomes raw PCM waveform data
The raw audio is re-encoded using Windows Media Audio's lossy codec
Metadata (tags, artwork, track info) is transferred where WMA supports it
The WMA file is saved and ready for download
WAV vs WMA — Detailed Comparison
| Feature | .WAV | .WMA |
|---|---|---|
| Full Name | Waveform Audio | Windows Media Audio |
| Compression | None (uncompressed) | Lossy |
| Typical File Size | 10 MB per minute at 44.1 kHz/16-bit stereo | 1 MB per minute at 128 kbps |
| Platform Support | Universal | Limited |
| Browser Support | Universal | none |
| Year Created | 1991 | 1999 |
| Open Standard | Yes | No |
Should You Convert WAV to WMA?
When to Convert
- ✓Your WAV file is too large for email attachments or upload limits
- ✓You want to reduce storage usage without noticeably affecting quality
Frequently Asked Questions
What is the difference between WAV and WMA?
WAV is uncompressed PCM audio — studio quality with no data loss, but large file sizes. WMA (Windows Media Audio) is Microsoft's audio codec — less common today but still found in legacy collections. Full Name: WAV uses Waveform Audio, while WMA uses Windows Media Audio. Compression: WAV uses None (uncompressed), while WMA uses Lossy. Typical File Size: WAV uses 10 MB per minute at 44.1 kHz/16-bit stereo, while WMA uses 1 MB per minute at 128 kbps.
Does WAV to WMA conversion affect quality?
WMA lossy compression can produce smearing, loss of high-frequency detail. At the high quality settings CocoConvert uses by default, these are usually invisible to the eye. Lower quality settings trade visual fidelity for smaller file sizes.
Which format has better compression, WAV or WMA?
WAV uses none compression. WMA uses lossy compression. The better choice depends on whether you prioritize file size or quality.
How long does WAV to WMA 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 WAV or WMA better for long-term storage?
WAV is better for archival since it's lossless.
Versions are pinned in our worker Dockerfile and re-built via CI on every change.