What is the difference between VST and AU plugins?

The difference between VST and AU plugins primarily lies in the platforms they are designed to work with. VST, or Virtual Studio Technology, is a standard developed by Steinberg and is widely used in Windows and macOS environments. It allows users to integrate virtual instruments and effects into their digital audio workstations, or DAWs. On the other hand, AU, which stands for Audio Units, is a plugin architecture created by Apple specifically for macOS and iOS applications. This means that while VST plugins can be used on various platforms, including Windows, AU plugins are exclusive to Apple's ecosystem. In terms of functionality, both VST and AU plugins serve similar purposes, allowing for the manipulation and enhancement of audio. They both support virtual instruments, effects processors, and other audio tools. However, users may find differences in the performance and optimization of these plugins depending on the DAW being used. It is also worth noting that many plugin developers create versions of their products for both VST and AU formats, which allows users to choose based on their preferred software environment. Users interested in exploring which plugins will work best for their needs may find helpful information on the current Arturia website.