Convert WMA to WAV — Free Online Converter
Convert Windows Media Audio (.wma) to Waveform Audio (.wav) online for free. Fast, secure audio conversion with no watermarks or registration....
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Upload your .wma file by dragging it into the upload area or clicking to browse.
Choose your output settings. The default settings work great for most files.
Click Convert and download your .wav file when it's ready.
About WMA to WAV Conversion
WMA is Microsoft's compressed audio codec, delivering lossy (Standard) or lossless (WMA Lossless) audio within the ASF container. WAV (Waveform Audio File Format) stores uncompressed PCM audio in Microsoft's RIFF container at approximately 10 MB per minute for CD-quality stereo. WAV is the universal standard for uncompressed audio across all platforms and DAWs.
Converting WMA to WAV decodes the compressed audio back to raw PCM samples, creating an uncompressed file suitable for professional editing, mastering, and any workflow that requires lossless input. For WMA Lossless sources, the conversion produces perfect PCM output identical to the original recording.
Why Convert WMA to WAV?
Professional audio editing tools perform best with uncompressed input. When processing WMA files through effects chains, normalizing, or mixing, the compressed format introduces latency and potential artifacts with each operation. WAV provides the clean PCM baseline that DAWs, mastering engineers, and broadcast systems expect.
WAV is also universally compatible — every operating system, audio editor, and playback device handles WAV without issue. Converting WMA to WAV removes any proprietary codec dependency and creates files that work everywhere.
Common Use Cases
- Preparing WMA recordings for professional audio editing in any DAW
- Converting WMA Lossless files to the universal uncompressed PCM standard
- Creating uncompressed masters from WMA archives for remastering projects
- Removing Windows Media codec dependency for cross-platform audio workflows
- Providing WAV files to mastering engineers who require uncompressed input
How It Works
FFmpeg demuxes the ASF container, decodes the WMA audio stream (Standard, Pro, or Lossless) to PCM, and writes the samples into a WAV RIFF container with little-endian byte order. The output preserves the decoded sample rate (typically 44.1 kHz or 48 kHz) and bit depth (16-bit or 24-bit). For WMA Lossless sources, the decoded PCM is bit-perfect — the WAV output is identical to the original pre-compression audio.
Quality & Performance
The conversion itself introduces no quality loss — every decoded sample is stored exactly in WAV. For WMA Standard sources, the WAV quality ceiling is whatever the lossy WMA codec preserved. For WMA Lossless sources, the WAV output is perfect. The significant tradeoff is file size: a 1 MB/minute WMA file becomes roughly 10 MB/minute as WAV.
Device Compatibility
| Device | WMA | WAV |
|---|---|---|
| Windows PC | Native | Native |
| macOS | Partial | Partial |
| iPhone/iPad | Partial | Partial |
| Android | Partial | Partial |
| Linux | Partial | Partial |
| Web Browser | No | Native |
Recommended Settings by Platform
Spotify
Resolution: N/A
Bitrate: 320 kbps
OGG Vorbis preferred
Apple Music
Resolution: N/A
Bitrate: 256 kbps
AAC format required
SoundCloud
Resolution: N/A
Bitrate: 128 kbps
Lossless FLAC/WAV for best quality
Podcast
Resolution: N/A
Bitrate: 128 kbps
MP3 mono for spoken word
Tips for Best Results
- 1Prioritize WMA Lossless files for conversion — they produce perfect WAV output with zero quality compromise
- 2Choose 24-bit output depth for professional editing even if the WMA source is 16-bit — this provides headroom for processing
- 3For WMA Standard files, consider converting to FLAC instead of WAV for the same quality with 50% smaller file size
- 4Batch convert entire WMA folders when migrating a library to uncompressed format
- 5Archive the WAV files with consistent naming to maintain library organization after migration
Related Conversions
WMA to WAV conversion creates universally compatible uncompressed audio from Microsoft's proprietary format. WMA Lossless sources produce bit-perfect WAV output.