AU

AU is the acronym for Audio Unit.

Audio Unit

A plugin format developed and maintained by Apple for the macOS. AU is an equivalent of VST. AU is a core part of Apple’s Core Audio framework, a low-level system for handling Mac audio. This tight integration gives AU plugins some advantages in terms of performance and efficiency. Some characteristics include:

  • Mac-exclusive: Unlike VST, which is cross-platform, AU plugins only work on macOS.
  • Similar to VST: Just like VSTs, AU plugins come in two main types:
    • Instrument plugins: Synthesizers, samplers, drum machines, etc.
    • Effect plugins: Reverb, delay, EQ, distortion, etc.
  • DAW support: Most DAWs on macOS support AU plugins.

AU is a robust and efficient plugin format that provides macOS users with a wide range of virtual instruments and effects within their DAWs.

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