SPX

Speex encoded audio

File type: Audio and sound file

Files with spx file extension may be found as audio files in the special Speex free open source audio codec used mainly to encode speech.

Found 4 different file type records with the same spx filename suffix.

.spx (1)

What is spx file?

File type category:
Audio and sound file

Date updated: July 13, 2025

The spx files extension is mainly used for Speex encoded audio format, based on open source/free software patent-free project, developed by Xiph.Org Foundation.

Speex is based on CELP and is designed to compress voice at bitrates ranging from 2 to 44 kbps. Some of Speex's features include:

Narrowband (8 kHz), wideband (16 kHz), and ultra-wideband (32 kHz) compression in the same bitstream
Intensity stereo encoding
Packet loss concealment
Variable bitrate operation (VBR)
Voice Activity Detection (VAD)
Discontinuous Transmission (DTX)
Fixed-point port
Acoustic echo canceller
Noise suppression

How to open spx file?

Use VLC media player or any other media player with support of SPX format.

How to convert spx file?

Possibly may be converted to other audio formats.

Suggested software to open spx file:

Speex

VLC media player

Associated software actions with the spx file

Open

Software applications that can open spx files:

VLC media player (Microsoft Windows)

Play

Apps designed for playing spx files:

Speex (Microsoft Windows)

VLC media player (Microsoft Windows)

VLC media player for Mac (Apple macOS / Mac OS X)

Xine (Linux/Unix)

VLC media player for Linux (Linux/Unix)

VLC Media Player for iOS (Apple iOS)

VLC media player for Android (Google Android)

Record

Software apps that record to spx files:

Speex (Microsoft Windows)

Export

Software apps that export spx files:

NEWTON Dictate (Microsoft Windows)

TiMidity++ (Microsoft Windows)

.spx (2)

Apple System Profiler computer information data

File type category:
Text file

Date updated: November 29, 2024

The spx file extension is related to Apple System Profiler.

Apple System Profiler is a part of the Mac OS X (macOS) operating system.

To enter into Apple System Profiler you can:

Open the Apple menu and choose About This Mac; it brings up the About This Mac box.
Click the More Info button. This brings up the System Profiler

The Apple System Profiler generates the SPX Apple System Profiler computer information file that contains full System Profiler report. File is in XML text format.

Creating and printing or saving a report:

Make sure to have a printer selected.
From the View menu, select Mini Profile, Basic Profile or Full Profile.
From the File menu, choose Print -the system generates a report based on your selection. Note that a full report can run hundreds of pages, depending on your configuration.
Open the File menu and choose Print, Save or Preview.

The SPX Apple System Profiler computer information file is used by the Apple technical support for better solution of bugs and technical problems with Apple Mac computers.

How to open spx file?

Use Apple System Profiler to view content of *.spx files.

The *.spx file is stored in simple text file format and it is also viewable in text editor.

How to convert spx file?

Use any text editor to export content of *.spx files to other text formats.

Suggested software to open spx file:

Mac OS X