This is a set of Audio Units including Loopback, Vocoder, Pitch Shifter, and Noise Suppression. A host application that can handle Audio Units is required for use. Loopback (In/Out/MIDI/Mixer): Connects to each other and transfers audio between host applications. MIDI signals can also be transferred. Please note that you might not do the recording inter app. Vocoder: This effect processes the sound of a synthesizer or other carrier with the input sound (modulator) and outputs it. It creates a so-called robot voice by inputting a voice or other sound. By default, Saw (sawtooth wave) is specified as the carrier, but it can also be input from a sidechain or Vocoder Input Audio Unit. Pitch Shifter: An effect that changes the pitch of the sound. Noise Suppression: A noise removal filter using RNNoise. This machine learning filter is optimized for voices. Gainer: An effect for adjusting the volume.