: Ensure your audio interface or sound card is properly connected and configured. Smaart can use a variety of hardware for measurements.
If you are looking for Smaart for professional use, Rational Acoustics now offers more flexible and affordable options than they did during the v7 era: Smaart RT / LE: Rational Acoustics Smaart V7.2.1.1 Incl Keymaker-EMBRACE