Convert SPX to MP3 Online — Free
Fast, free SPX to MP3 converter. No registration required.
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How to Convert
Upload your .spx 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 .mp3 file when it's ready.
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
What is MP3?
MP3 is the most popular audio format worldwide. It uses lossy compression to reduce file size while maintaining acceptable audio quality for most listeners.
Format Details
- Full Name
- MPEG Audio Layer III
- Extension
- .mp3
Key Features
- Universal compatibility
- Small file sizes
- Streaming support
- ID3 tag support
SPX vs MP3
| Feature | SPX | MP3 |
|---|---|---|
| Full Name | Speex Audio | MPEG Audio Layer III |
| Extension | .spx | .mp3 |
| Best For | Speech optimized | Universal compatibility |