JAX Stereo Tool AU is a visual Audio Unit plugin designed for manipulating the stereo image of digital audio. This plugin is available system-wide upon installing the app on your iPhone. It can be used with most supporting host applications, making it a versatile tool for audio editing and mastering.

As an Apple-recommended method for providing shared audio effects, Audio Units are widely supported by various applications and audio editors. JAX Stereo Tool AU can be loaded into any host application that supports at least stereophonic audio effect plugins in Audio Unit format, complete with its own user interface.

The main use of JAX Stereo Tool AU is as a mastering effect, allowing you to adjust the stereo image of your audio in a controlled manner. You can narrow or widen the stereo output in real time, continuously adjusting it from pure mono to very wide stereo. To aid in this process, the plugin provides an integrated correlograph, offering visual feedback to optimize and fine-tune your audio.

One of the standout features of JAX Stereo Tool AU is its ability to recover lost mono-compatibility. By utilizing a straightforward yet effective technique, this plugin ensures your audio remains compatible with mono playback systems. For a more in-depth understanding of this technique, refer to the manual which is included with the app or accessible on the product website.