Tools / File Converter / SPX to WAV Converter

SPX to WAV Converter

Convert SPX files to WAV. Free, without uploading.

This tool converts SPX files to WAV. Speex speech audio.

WAV is uncompressed audio: no quality loss, but large files. Editing and recording software use it a lot. WAV is lossless, so the audio keeps the quality it has in the SPX file.

Conversion runs on your device; your file is never sent to a server. The components download once on first use, and later conversions start right away.

How to use

1. Choose the SPX file, drag it in, or paste its link.
2. Choose the audio quality; optionally enter a start and end time.
3. Press "Convert" and download the WAV file.

Frequently asked questions

Will audio quality drop when converting to WAV?

No. WAV is lossless.

Is there a file size limit?

No fixed limit; your device’s memory decides. Computers usually handle files up to 1–2 GB.

Is my file uploaded?

No. Your SPX file is converted to WAV inside your browser.