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"Sound wave" records the following two dimensions for the sampled sound data: elapsed
time (horizontal axis) and volume (vertical axis).
"FFT" records the following two dimensions: frequency (horizontal axis) and volume (vertical
axis).
•
Selecting "Sound wave" here will display the Mic & Speaker Mode screen.
•
Selecting "Sound wave & FFT" or "FFT only" will display the dialog box shown below.
Selecting an option automatically configures parameters with the fixed values shown in the
table below.
Option
2 - 1000Hz: 1
Parameter
Frequency Pitch
2 Hz
Frequency
1000 Hz
Upper Limit
Sampling Period 61 μsec
Number of
8192
Samples
Using a function key (1 through 4) to select an FFT range, will cause a Mic & Speaker
Mode screen to appear.
Selecting "Sound wave & FFT"
ε
-5
Sampling Screen
4 - 2000 Hz: 2 6 - 3000 Hz: 3 8 - 4000 Hz: 4
4 Hz
6 Hz
2000 Hz
3000 Hz
31 μsec
20 μsec
8192
8192
Selecting "FFT only"
8 Hz
4000 Hz
31 μsec
4096
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