1) Upload SPX file to convert
Drop files here, or Click to select
2) Set converting SPX to MP4 options
3) Get converted file
File extension | .SPX |
Category | Audio File |
Description | SPX (Speex) is an open-source CELP-based speech codec format intended for compressing speech at bitrates between 2 and 44 kbps. The .SPX extension has a number of advanced features, which ensure noise- and echo reduction, stereo encoding, integration of several sample rates within a particular bitstream, etc. Although SPX is patent-free, it is not widely supported by popular audio players. For this reason, most users prefer to convert SPX files to WAV or MP3. |
Associated programs | VLC media player FFMpeg |
Developed by | Xiph.Org Foundation, Jean-Marc Valin |
MIME type | audio/x-speex audio/speex |
Useful links | More detailed information on SPX files |
Conversion type | SPX to MP4 |
File extension | .MP4 |
Category | Audio File |
Description | MP4 files can contain video and sound data. It is a file container that supports different multimedia content types such as multiple audio streams, subtitles, 2D and 3D image frames. MP4 is also used for streaming media services (online or digital TV). This file type supports the control of transmission speeds for media signal, as well as correcting corrupted frames. Thanks to comparatively low system requirements, MP4 is now the most popular container type for sharing media. |
Associated programs | Apple QuickTime Player Apple iTunes Microsoft Windows Media Player VideoLAN VLC Media Player |
Developed by | Moving Picture Experts Group |
MIME type | |
Useful links | More detailed information on MP4 files |
Our tool converts an uploaded copy of your original file. The original file stays on your computer and is unaffected by the process. There is no risk of data loss by conversion.
Also, your data is safe with us. We delete all uploads from our servers after one hour. In other words, an hour after you upload your files, those files are purged from our servers forever. You don't need to worry about your content being stored on the server.