Convert FLAC to SPX
Fast, free FLAC to SPX conversion — works in any browser
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flac
FLAC — Free Lossless Audio Codec
| File extension | .flac |
|---|---|
| File category | audio |
| Programs | VLC media player foobar2000 Audacity Amarok Banshee |
| Tech description | https://en.wikipedia.org/wiki/FLAC |
| MIME type | audio/flac audio/x-flac |
| Developer | Josh Coalson (Xiph.Org) |
FLAC (Free Lossless Audio Codec) is an open-source lossless audio compression format developed by Xiph.Org and released in 2001. Unlike MP3 or AAC, FLAC preserves every bit of the original audio data, allowing perfect reconstruction of the source. Compression typically reduces file size by 40–60% compared to uncompressed WAV or AIFF. FLAC supports up to 32-bit sample depth and 655 kHz sampling rate, as well as embedded metadata tags and cover art. It is royalty-free and widely supported on Android, Linux, Windows, and macOS, as well as media players including VLC, foobar2000, Audacity, and most hi-fi audio hardware.
spx
An audio file with recorded voice messages
| File extension | .spx |
|---|---|
| File category | audio |
| Programs | VLC media player Audacity foobar2000 MPlayer |
| Tech description | https://en.wikipedia.org/wiki/Speex |
| MIME type | audio/ogg; codecs=speex audio/x-speex |
| Developer | Jean-Marc Valin (Xiph.Org) |
This format extension is one of the Speex Audio formats. It is an open-source codec developed by Xiph.Org. Used for creating voice messages and transmitting voice over packet-based networks with a low level of security. It is an audio file with recorded voice messages that are packaged in an OGG file. Only certain media players can open it.
FAQ
How to convert SPX to FLAC?
Upload your SPX file, select FLAC as the output format, and click Convert. The converted file will be ready to download in seconds — no account or installation required.
How long does it take to convert SPX to FLAC?
Most SPX files convert in seconds. Larger files may take up to a few minutes depending on size and internet speed. You can track the progress bar in real time during conversion.
Is it safe to convert SPX files online?
Yes. All uploaded SPX files and converted FLAC results are automatically deleted from our servers within 1 hour after conversion. We do not store, share, or access your files.
Can I convert SPX on iPhone or Android?
Yes, our converter works on all devices and operating systems — iPhone, iPad, Android, Windows, and macOS. Open the site in your mobile browser, upload the SPX file and convert to FLAC without installing any app.
