.PA File Extension

.PA File Extension

File Type 1

PowerArchiver Compressed File

Developer ConeXware
Popularity
4.0  |  4 Votes
Category Compressed Files
Format N/A

What is a PA file?

A PA file is a compressed archive created by ConeXware PowerArchiver, a utility used to compress, encrypt, and back up data. It is compressed using the Advanced Codec Pack format, which includes various advanced filters and codecs used to optimize compression based on the file type, and may include FIPS 140-2 256-bit AES encryption. PA files may contain multiple directories or files compressed to save space for storage or transportation purposes.

More Information

The PowerArchiver Advanced Codec Pack format was released with PowerArchiver 2017. The format features two optimized compression modes: 1) "Optimized Fast" for faster compression and 2) "Optimized Strong" for stronger compression.

PowerArchiver uses the BWTS algorithm to mix data before AES encryption to better secure archives. This encryption method results in archives that are better protected than .ZIP and .7Z AES archive formats.

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Programs that open or reference PA files

Windows
Updated July 23, 2019
File Type 3

PulseAudio Startup Script

Developer PulseAudio Community
Popularity
2.0  |  1 Vote
Category Settings Files
Format Text

What is a PA file?

A PA file is a configuration file used by PulseAudio, a free sound server program. It is run at startup to specify how a user's sound system is configured. PulseAudio's primary PA file is named default.pa.

More Information
Screenshot of a .pa file in Microsoft Visual Studio Code
PA file open in Microsoft Visual Studio Code

PulseAudio is a program used to manage how a computer outputs audio. For example, you can use PulseAudio to mix several audio streams and output them using one audio device, or you can use it to change audio's sample format or channel count. The program is available primarily for Linux, but macOS and Windows versions also exist.

At startup, PulseAudio loads settings that define how a user's audio system is set up from a PA file. In most cases, PulseAudio loads these settings from a file named default.pa, which is located at either ~/​.config/​pulse/​default.pa or etc/​pulse/​default.pa. When PulseAudio runs as a system service, it instead loads settings from etc/​pulse/​system.pa.

NOTE: The Windows version of PulseAudio is no longer maintained.

Common PA Filenames

default.pa - PulseAudio's default startup script.

system.pa - PulseAudio's system service-level startup script.

How to open a PA file

PulseAudio's PA files are plain text files, so you can open and edit them in GitHub Atom, Apple TextEdit, Microsoft Notepad, or any other text editor. For example, you can edit default.pa to specify a new default audio output device. PulseAudio will then use that new default device the next time you start it.

Programs that open or reference PA files

Windows
Mac
Included with OS
Linux
Updated February 14, 2022

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