NTi Audio Minilyzer ML1 - Manual (Page 33)

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sweep
ML1 supports two sweep modes:
• LEVEL RMS as function of frequency
• LEVEL RMS, THD+N and Frequency as function of time
The required sweep mode may be selected through the SWEEP entry
of the measurement function submenu.
a. frequency sweep
During a frequency sweep, ML1 records the LEVEL RMS of every
input signal that has a stable frequency and level, provided that the
frequency is higher than the one of the previous sample (otherwise
the sample will be neglected).
Fig 3.16 Frequency Sweep Graph
Arrow Mode
Control
Y-Scale
Zoom Mode
REC /Stop
Control
Filter Measurement Mode
Arrow Readout
Within a graph, every recorded sample is connected by a straight
line approximation to the previous/next sample, thus building the
displayed curve.
In practice, the following steps are required / available for the execution
of a frequency sweep.
• To enter the frequency sweep mode, select in the measurement
function submenu SWEEP -> FREQ.
• If required activate a filter through the corresponding menu.
Measurement Functions