4 Audio Analyzer Measurement Functions
206 Keysight U8903B User’s Guide
THD Level is defined as the square root of the sum of the squares of all the signal
harmonics components, and it is expressed in Vrms. The THD Level can be computed
as follows.
THD+N Level measurement function mode is applicable for the analog, digital, and
Bluetooth analyzer. The settings for THD level measurement are displayed as shown in
Figure 4-30, Figure 4-31, and Figure 4-32 for the analog, digital, and Bluetooth analyzer
respectively.
Figure 4-30 Analog Analyzer > Functions > THD level menu page 1
Figure 4-31 Digital Analyzer > Functions > THD level menu page 1
THD Level rms value of distortion=
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