Online SPX to OPUS, you can put the SPX to OPUS 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 'OPUS'
Select output OPUS 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 OPUS 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.
Opus is a sound encoding format, and Opus's predecessor was the celt encoder. Developed by the IETF for real-time voice transmission over the network, the standard format is RFC 6716.