SPX File - opening and understanding

Did your computer fail to open a SPX file? We explain what they are used for and recommend software that we know can open or otherwise handle your .SPX files.

What is a SPX file?

The .spx file extension belongs to the group of various audio file formats. But what was special about .spx is it was a file format that is free of any patent restrictions since the software it used for running is BSD licensed. SPX was a file extension derived when the user utilizes Speex. An audio file encoded and compressed in Speex will typically have the .spx file suffix on its name.

Speex is primarily used for speech. It is an open source software that is being used in podcasts and discussion audio files. Files with .spx extension are sometimes in .ogg container and can be played with Winamp.

There are lots of speech audio formats, but most of them are proprietary and not to miss, expensive. And in the past, many utilize speech audio files to broadcast previous news and messages and to place speeches on video games. However, because of these formats being proprietary and expensive, few messages are being delivered and a few games can be enhanced with speech audio. To solve this, the Speex project was created. The aim of this project is to allow an application that will provide free format which can be used by many so that communication barrier will be lessened.

Moreover, Speex has various features which other codecs do not possess, allowing a variety of characters in the audio to be in different angles. However, now, the software Speex is obsolete but the .spx files are still used and can be found in Siri voice assistance for iPhone 4S and in many video game character speeches. Speex is now replaced by Opus.

How to open SPX files

You will need a program compatible with the specific file you are trying to open, as different programs may use files with file extension SPX for different purposes.

While we have not verified the apps ourselves yet, our users have suggested 10 different SPX openers which you will find listed below.

Suggest another file format using extension SPX

While we know of one file format using the .SPX file extension, there may be more. It is widespread that different programs use files with the same file extension for very different types of data. Please let us know if you are aware of a different kind of .SPX file.

Various viewers for this file format

These apps are known to open certain types of SPX files. Remember, different programs may use SPX files for different purposes, so you may need to try out a few of them to be able to open your specific file.

Free File ViewerFree File ViewerUser submitted
Final Media PlayerFinal Media PlayerUser submitted
WavePad Sound EditorWavePad Sound EditorUser submitted
WavePad Audio-EditorWavePad Audio-EditorUser submitted
Switch Sound File ConverterSwitch Sound File ConverterUser submitted
VideoLAN VLC media playerVideoLAN VLC media playerUser submitted
KMPlayerKMPlayerUser submitted
MplayerMplayerUser submitted
MixPadMixPadUser submitted
AIMP3AIMP3User submitted
We have not verified any software that we know for certain will work with SPX-files on Mac. If you know one, please use the 'Suggest a program' link below and tell us about it!
We have not verified any web services that we know for certain will work with SPX-files. If you know one, please use the 'Suggest a program' link below and tell us about it!