Try to reduce background noise as this will improve accuracy.
Take many measurements. Try to cover all the places a listener might be in the listening area. Try to hold the microphone where a listener’s ears would be located. The average measurement will cancel out small variances allowing a best-fit tune for the whole listening area.
Tune the audio system in small steps, collecting the same measurements after each change. When most of the average measurement is within the reference band, the audio system is sufficiently tuned. Further tuning may not be perceptible.
When using HouseCurve with compensation turned on, the built in iPhone/iPad microphone is accurate enough to get within a few dB of the reference curve. HouseCurve supports calibrated external microphones for users seeking higher accuracy. Go to Setup to select or load external microphone calibrations.
HouseCurve provides some common reference curves or “house curves”. The selection of curve is subject to individual taste. Custom curves may also be imported by going to Setup. When in doubt go with the default curve.
Plot smoothing and frequency scale can be changed at any time by going to Setup.
HouseCurve measurements may be affected by iPhone/iPad cases.