Online SPX to VOX, you can put the SPX to VOX format on your computer, tablet or mobile phone without downloading any software!
Step 1
Upload SPX file
Select files from your computer, Google Drive, Dropbox, URL or by dragging them on the page.
Step 2
Select 'VOX'
Select output VOX or any other format as the conversion result (click the Convert button)
Step 3
Download your SPX file
After the conversion you can download your VOX file and upload it to Google Drive, Dropbox.
spx : Speex
An SPX file is a Speex audio file saved within an Ogg Vorbis container. Speex is an open source patent-free audio format designed for speech compression. It supports variable bitrate (VBR) encoding and several features not found in other audio codecs. Some examples include embedded encoding, intensity stereo encoding, and voice activity detection.
vox : A headerless file of Dialogic/OKI ADPCM audio data
A headerless file of Dialogic/OKI ADPCM audio data commonly comes with the extension .vox. This ADPCM data has 12-bit precision packed into only 4-bits.