Blue Cat's StereoScope Pro

Blue Cat's StereoScope Pro is a comprehensive stereo analysis plugin that visualizes the spatial characteristics of your mix with precision and clarity. Unlike basic stereo meters, it provides multiple analytical perspectives: a real-time stereo field display showing the instantaneous left-right energy distribution, a 2D/3D stereogram that tracks how the stereo image evolves over time, and explicit output parameters that quantify the perceived center position and width of your signal. The 3D waterfall view with full rotational control offers particularly detailed insight into how your stereo content develops across frequency and time.

The plugin excels at identifying phase issues and mono compatibility problems before they become costly mix problems. Its integrated correlation meter provides the standard M/S analysis, while the zoomable displays allow examination at multiple scales from broad overview to surgical detail. Four memory slots facilitate direct A/B comparisons between different mixes or commercial references, a workflow feature that distinguishes it from simpler alternatives.

What sets StereoScope Pro apart is its dual output capability. Beyond visual analysis, it generates MIDI CC messages or automation envelopes derived from its measurements - the stereo position, width, and perceived center point - allowing real-time control of other plugins based on actual spatial characteristics rather than manual tweaking.

This tool suits mixing and mastering engineers who need objective data about stereo imaging, as well as surround sound professionals evaluating spatial distribution. While not essential for basic stereo mixing, it becomes invaluable for critical work where subtle phase relationships or unexpected mono collapses could compromise translation across playback systems.