sph2wav

Flatten NIST SPHERE files into plain WAV or FLAC — in your browser.

Please don't use this if a real tool can do the job. sph2pipe, ffmpeg, and sox all decode SPHERE. But we know they're old and awkward to install — so if that's in your way, drop your .sph file(s) below and get them back converted. Everything runs locally in this page; your files are never uploaded anywhere.

Output: WAV FLAC (lossless, smaller)

Drop .sph file(s) here
or click to choose

Drag-and-drop doesn't work in every browser (notably some Firefox setups) — if a drop doesn't take, click the box to choose files instead.