AMEasure Subsystem (FFT)
AM700 Audio Measurement Set Programmer Manual 3–27
AMEasure Subsystem (FFT)
FFT supports 5 separate measurements. They are:
AMEasure1: FFT on channel 1
AMEasure2: FFT on channel 2
AMEasure3: Configurable Multitone
AMEasure4: Configurable Multitone
AMEasure5: Configurable Multitone
These measurements ‘assignments’ are described by the the AME:MODE
command. FFT implements AME:MODE, with the following initial values for each
suffix combination:
AME1:MODE FFT
AME2:MODE FFT
AME3:MODE MTONe
AME4:MODE MTONe
AME5:MODE MTONe
The AME:MODE values (and hence, the measurement mode) are not changeable
within FFT. That is to say, the type of multitone measurement made by measure-
ments 3 through 5 can be altered (using AMEasure), but the measurements can not
be configured to make FFT measurements.
Each of the five listed measurements can be individually enabled and disabled. The
command to enable/disable the measurements is:
AME[1–5]:STAT <Boolean>
All five measurements are enabled when FFT starts.
The FFT measurements (measurements 1 and 2) are not configurable from within
the AMEasure subsystem.
The multitone measurements (measurements 3, 4, and 5) are configurable within the
AMEasure subsystem.