Using the phone's internal microphone, the EQ Recommendation analysis tool works specifically to help set up the KRK ROKIT G4 monitors I previously reviewed in these pages. It works by sending pink noise through your monitors, analyzing the room and then recommending the best setting on the DSP-driven EQ on the G4's rear-panel LCD display.

KRK Audio Tools App

In addition to the EQ Recommendation tool, the app also includes a Spectrum Real Time Analyzer (RTA), SPL Level Meter, both Delay and Polarity checkers, as well as a Monitor Align tool that helps aim and match the angle of your Left/Right monitor speakers accurately at the listening position.

I like the app's sound generator with frequency-adjustable (20Hz to 20kHz) sine wave output, a sine wave sweep function with an adjustable sweep time from 0.5 to 20-seconds duration, and white and pink noise generators.

All of these test tones are available from your phone and can be adjusted in level to accommodate any external system such as your monitor speakers.

Go to KRK Systems on your app store to download this free App it is a must-have for any studio engineer or just to set up your stereo system.