MAATgo: Stereo Monitor Controller and Goniometer by MAAT Free Download

MAATgo combines channel steering and blending controls with a balance adjustment. Stereo image and routing options include a sum (L+R) mode, a difference (L-R) mode, a swap mode that exchanges left and right, and polarity inversion for the left channel, the right channel or both.

The plugin offers five monitoring modes: solo, mono, difference, and mid/side. The mono mode lets you listen for cancellation in the phantom center, which also helps you check how the center relates to panned content at the edges. The L-R mode removes most mono content, so it can be used to reduce lead vocals on many popular songs.

Polarity inversion modes help you check signal chain integrity, while left-only and right-only controls give a more detailed view of the stereo field.

The goniometer, which the developer calls a phase scope, shows global trends in the stereo image and helps you gauge frequency response and phase shift. An out-of-phase warning is built into the display, and an optional autogain feature keeps the display readable across a wide range of input levels.

Display settings for gain, focus, phosphor color, drawing style and persistence are available in the preferences. You can save these settings as a personal preset. The interface has no physical-style knobs, and it can be resized to occupy a small part of the screen.