Limiter, compressor, reverberation, equalizer and auto volume effects for Pulseaudio applications.

Audio Overload emulates the sound hardware of vintage consoles and computers, allowing you to listen to completely authentic renditions of classic video game tunes. Audio Overload does not play music from arcade games; for that you should use M1.

M1 plays the music from arcade games by running the code in the original ROMs (not supplied). This allows entirely authentic playback of classic video game tunes while you work. M1 does not play music from console and computer games; for that you should use Audio Overload.

This is the synthesizer plug-in Surge which Claes Johanson (@kurasu) previously sold as a commercial product via the company vember audio.
As he is too busy with other projects and no longer wanted to put the effort into maintaining Surge across multiple platforms, he decided to give it a new life as an open-source project.
It was originally released in 2005, and was one of Claes’ first larger projects. It is reliable and sounds great.

Studio One Prime is the free version of our flagship DAW, Studio One.
Enjoy many of the same powerful features from Artist and Professional editions, including intuitive drag-and-drop functionality, unlimited tracks, Presence XT, and nine robust Native Effects plug-ins. You’ll also get nearly a gig of loop and sample content to get your creativity rolling.
System-wide audio equalizer for the Mac. Basic edition is free and open source. Improves your audio listening on OSX / macOS. Experience music on your Mac, how it’s meant to be.

… Although Csound has a strong tradition as a tool for composing electro-acoustic pieces, it is used by composers and musicians for any kind of music that can be made with the help of the computer. Csound has traditionally been used in a non-interactive score driven context, but nowadays it is mostly used in in a real-time context. Csound can run on a host of different platforms including all major operating systems as well as Android and iOS. Csound can also be called through other programming languages such as Python, Lua, C/C++, Java, etc.
An open-source cross-platform audible audiobook manager. With over 250 stars by github developers, OpenAudible is the trusted audio book content manager.

MinimServer is a new UPnP AV music server with a number of innovative features that make it easier to organize and explore your music collection. If you have a network music player that supports the UPnP AV standards (see this page), you’ll get much more from your music collection if you’re using MinimServer as your music server software.
DeaDBeeF (as in 0xDEADBEEF) is a modular audio player for GNU/Linux, *BSD, OpenSolaris, macOS, and other UNIX-like systems.
DeaDBeeF lets you play variety of audio formats, convert between them, customize the UI almost any way you want, and use many additional plugins which can extend it even more.

deadbeef.sourceforge.net
deadbeef.sourceforge.net/download
deadbeef.sourceforge.io/plugins.html
play.google.com/store/apps/details?id=org.deadbeef.android
CUI ~ A faceted library browser plugin for Deadbeef. Columns-UI-like
github.com/VirInvictus/deadbeef-cui
github.com/topics/deadbeef
github.com/topics/deadbeef-plugin
en.wikipedia.org/wiki/DeaDBeeF
This tool is aimed at people migrating a music library from iTunes™ to Foobar2000, and allows you to keep the various statistics and dates that are saved by iTunes. It reads these fields from your iTunes Library XML, and writes them to the file tags that are expected by the import function of foo_playcount. You can transfer playlists too.