General Signal Processing - Probes Tab

The Probes tab is active for all input file types.

Figure 1. General Signal Processing utility - Probes tab
Element selections
Select the single element or multiple elements corresponding to the results to display.
Select single elements by:
  • Element ID
  • Co-ordinates
  • Selection
The closest element within a 5mm radius is selected for the Co-ordinates option.
Select Satellite Probe if multiple elements are selected within a specified radius with center as the previously selected single element choice.
For the *.csv input file type, only element selection by element ID is supported.
The All Probes option processes and displays results for all probes contained in file.
Input Signal Selection
In this section, specify the input file time domain data and modify the time data to be used for processing.
The Input Time Duration, along with the total number of time steps and sampling frequency, is displayed.
The Time Duration of the transient domain signal is provided, and the number of time steps corresponding to the time duration is displayed.
Reset resets the time duration to the input time duration obtained from the file.
Click Advanced Options to chose the Cp-to-pressure conversion factor, which needs to be multiplied by the input time domain signal.

Figure 2. General Signal Processing Utility - Frequency Spectrum

Figure 3. General Signal Processing Utility - Time Domain Signal
Output Request
Specify the output request parameters.
Specify the response type: transient or frequency domain.
If the response type = frequency domain, specify Scale, Output Type (PSD or SPL), Plot Type, and Frequency Range.
Scale options include dB or dBA.
Output Type options include narrowband or broadband.
Broadband types, such as Octave, 1/3 Octave, 1/8 Octave, and 1/12 Octave, are supported for the SPL output type.
The upper limit of the frequency range can be up to half of the sampling frequency, and the lower limit can be reciprocal - four times the time duration.
Signal Processing Parameters
If the output response type is Frequency Domain, then specify signal processing parameters. Options include:
  • Block Size
  • Bandwidth
  • Overlap %
  • Time Windowing options, such as Hanning, Hamming, and Blackman.
Select Display Options and Display to edit and display results.
Use Export Data to output results to a CSV file.