Audio Conversion
Convert SPX to AIFF Online — Free
Fast, free SPX to AIFF converter. No registration required.
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How to Convert
1
Upload your .spx file by dragging it into the upload area or clicking to browse.
2
Choose your output settings. The default settings work great for most files.
3
Click Convert and download your .aiff 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 AIFF?
AIFF is an uncompressed audio format developed by Apple. Like WAV, it provides perfect audio quality but results in large file sizes.
Format Details
- Full Name
- Audio Interchange File Format
- Extension
- .aiff
Key Features
- Lossless quality
- Apple standard
- Professional audio
- No compression
SPX vs AIFF
| Feature | SPX | AIFF |
|---|---|---|
| Full Name | Speex Audio | Audio Interchange File Format |
| Extension | .spx | .aiff |
| Best For | Speech optimized | Lossless quality |
Frequently Asked Questions
Yes. You can convert up to 5 files per day completely free, with no watermark or registration required.
Most files convert in under 30 seconds. Larger files (over 500MB) may take 1-3 minutes.
No. Our converter uses optimized encoding settings by default to preserve the original quality.
Free users can convert files up to 100MB. Pro users can convert files up to 2GB.
Yes. Our converter works in any modern web browser on any device.