Metric Halo SpectraFoo CompleteSpectraFoo Complete Features SpectraFoo has been designed to provide all of the tools you need for a powerful suite of digital meters, with all of the resolution of hardware meters at a fraction of the price. With more than 15 individual metering tools, SpectraFoo gives you all of the information you need to analyze and prepare your audio, for production, performance, mastering, or broadcast. SpectraFoo Complete was created for live sound engineers