SPAN is a real-time spectrum analyzer. Unlike many basic stock plugins, it offers professional-grade precision and deep customization:
is widely considered one of the best free tools for visual audio analysis, essential for any producer or mixing engineer looking to bridge the gap between what they hear and what they see. Key Features & Capabilities
You can compare two different audio tracks—such as your mix and a professional reference—in a single window using its internal routing system.
The interface is fully resizable and supports Retina/HighDPI displays, making it perfect for high-resolution setups or second monitors.
While you should always mix with your ears, SPAN provides a critical "sanity check" for your room's acoustics. It reveals: Voxengo SPAN - Free Spectrum Analyzer Plugin VST, AU, AAX
Includes true-peak and clipping detectors, correlation meters to find phase issues, and EBU R128 or K-system metering for mastering.
Easily switch between different presets for varied tasks, like viewing fast transients or long-term average tonal balance. Why You Need to Download Voxengo SPAN