PortAudio is a cross platform, open-source, audio I/O library. It provides a very simple API for recording and/or playing sound using a simple callback function.
Cost / License
- Free
- Open Source
Platforms
- Mac
- Windows
- Linux
OpenAL Soft is described as 'LGPL-licensed, cross-platform, software implementation of the OpenAL 3D audio API. It's forked from the open-sourced Windows version available originally from openal.org's SVN repository (now defunct)' and is an app. There are seven alternatives to OpenAL Soft for Mac, Windows, Linux and Self-Hosted. The best OpenAL Soft alternative is PortAudio, which is both free and Open Source. Other great apps like OpenAL Soft are Wwise, RtAudio, FMOD Ex and OpenAL.
PortAudio is a cross platform, open-source, audio I/O library. It provides a very simple API for recording and/or playing sound using a simple callback function.
"Wwise® is the most advanced, feature-rich interactive sound engine for games, bar none. Whether you're an indie or a multi-million dollar production, Wwise will work for you." - Audiokinetic.com



FMOD is a proprietary audio library that plays music files of diverse formats on many different operating system platforms, used in games and software applications to provide audio functionality.
OpenAL is a cross-platform 3D audio API appropriate for use with gaming applications and many other types of audio applications.
AudioKit is the leading open-source audio framework. It powers millions of app installs. AudioKit allows developers to quickly add professional audio functionality to iOS, macOS, and Apple Watch apps.

SoLoud is portable - the c/c++ code base is written in portable way, and the code has been used on various platforms including windows, osx, linux, as well as android and even ps4. (I'm not responsible for many of the platforms, though, and for licensing reasons, ps4 code is...

