SP395 SoundPro Audio Integrator
Form7492
Operation Manual
23
Memory Control
Some test functions support saving measurement data to internal, non-volatile memory. The
SP395 provides memory storage of RTA, FFT, ETG, Dosimeter, Sound Study Graphs,
Amplitude Sweep and Impedance Sweep functions. These functions use the four memory control
icons, in the center of the bottom toolbar. Note that a memory must be empty (cleared) before
measurement data can be stored into it. The Clear (C) icon can be used to erase the contents of a
memory.
6.
Memory Number
The memory number icon selects a memory location for storing,
recalling, or clearing. There are memory numbers 0 through 39 or 40 locations. When the
memory number field is selected, the type of data stored in that location (or “---” if
empty) appears on the bottom of the graph.
7.
Store
Click the S (Store) icon to store the results of the current function. The memory
location must be available (empty) before storing results. If the function does not support
memories, the icon does nothing.
8.
Recall
Click the R (Recall) icon to retrieve the results stored in the current memory
location and to display them on the screen. If the current function does not support
memories, the icon does nothing.
9.
Clear
Click the C (Clear) icons to erase the contents of the current memory location.
Main Output and Generator Control
The five icons that control the main output and signal generator are located on right end of the
bottom toolbar. Some fields control only the generator, while others control features of the main
output section.
10.
On/Off
The 1/0 icon turns the generator on and off. This field also controls functions that
use special output signals, such as the transparency test.
11.
Level
The bar level gauge controls the digital generator output level. Every turning step
of the control knob changes the output level by exactly 1 dB.
12.
Waveform
This icon selects the generator waveform. It can also select the USB input as
a signal source. The available waveforms are sine, square, white noise, and pink noise.
The USB selection sets up the USB input as a source for the main output.
13.
Select Frequency
This field changes the frequency of the generator output, as
determined by the Step Size field.
14.
Step Size
This field selects how the frequency field changes the generator frequency.
Choices are octave steps (Oct), one-third octave steps (1/3), or fine mode (Full). In full
mode the generator frequency is selectable in 1 Hz steps to 10 kHz and 2 Hz steps above
10 kHz.
In some functions the output generator is required to be in set conditions to perform the test
function. Examples include the Impedance Meter, the Cable Tester, and the Sweep tests. In these
functions, some icons on the bottom toolbar will not appear. However, even if generator settings,
levels, and other items are changed, the settings that were in effect most recently will re-appear
when a function is selected that uses the normal toolbars.
