Strutt, J. Make certain that the input and output levels are appropriate and no clipping is present on any device. In performing impulse response measurements, it is often difficult to obtain an acceptable signal-to-noise ratio in order to fully view the entire decay of the system. When certifying these systems for cinema use, the Inverse X-curve may be activated under the Weight spinner for the RTA. In either case, the loudspeaker and calibration resistors are substituted for the unknown impedance Z in the schematics.
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