Convert WMA to SPX Online — Free
Fast, free WMA to SPX converter. No registration required.
2M+ Files Converted
Trusted by thousands of users
Secure Transfer
HTTPS encrypted uploads
Privacy First
Files auto-deleted after processing
No Registration
Start converting instantly
Works Everywhere
Any browser, any device
How to Convert
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 .spx file when it's ready.
What is WMA?
WMA is an audio format developed by Microsoft. It offers good compression and is commonly used in Windows environments.
Format Details
- Full Name
- Windows Media Audio
- Extension
- .wma
Key Features
- Windows native
- Good compression
- DRM support
- Streaming capable
What is SPX?
Speex is an open-source audio codec designed specifically for speech. It provides excellent voice compression and is used in VoIP applications and voice recordings.
Format Details
- Full Name
- Speex Audio
- Extension
- .spx
Key Features
- Speech optimized
- VoIP standard
- Open source
- Low latency
WMA vs SPX
| Feature | WMA | SPX |
|---|---|---|
| Full Name | Windows Media Audio | Speex Audio |
| Extension | .wma | .spx |
| Best For | Windows native | Speech optimized |