Audio Conversion
Convert FLAC to SPX Online — Free
Fast, free FLAC to SPX converter. No registration required.
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How to Convert
1
Upload your .flac 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 .spx file when it's ready.
What is FLAC?
FLAC is an open-source lossless audio codec. It compresses audio without any quality loss, making it popular among audiophiles.
Format Details
- Full Name
- Free Lossless Audio Codec
- Extension
- .flac
Key Features
- Lossless compression
- Open source
- Audiophile quality
- Metadata support
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
FLAC vs SPX
| Feature | FLAC | SPX |
|---|---|---|
| Full Name | Free Lossless Audio Codec | Speex Audio |
| Extension | .flac | .spx |
| Best For | Lossless compression | Speech optimized |
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.