3GP to SPX Converter
Convert your 3gp files to spx online & free
How to convert 3gp to spx
Select files from Computer, Google Drive, Dropbox, URL or by dragging it on the page.
Choose "to spx"
Choose spx or any other format you need as a result (more than 200 formats supported)
Download your spx
Let the file convert and you can download your spx file right afterwards
Third Generation Partnership Project
Is a the most popular media container format on phones without the support of 3G, which is currently somewhat outdated. Its main advantage is a compactness. Video data here gets stored in h.263 or MPEG-4 formats. AAAC-LC or AMR-NB are available for audio.
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.