Online SPX to SD2, you can put the SPX to SD2 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 'SD2'
Select output SD2 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 SD2 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.
SDII (Sound Designer II, sometimes seen abbreviated as SD2) is a monophonic/stereophonic audio file format, originally developed by Digidesign for their Macintosh -based recording/editing products. It is the successor to the original monophonic Sound Designer I audio file format.