Go Direct® Sound Sensor (GDX-SND), can capture waveforms using its Microphone channel. By doing an FFT on those waveforms, you can find what frequency or frequencies contribute to the waveform. If you have a Go Direct Sound and would like to calculate FFTs using its Microphone data, you have two options:

Option 1
Connect Go Direct Sound to a LabQuest 2 or LabQuest 3, either via USB or Bluetooth, and follow the same procedures that you use with Microphone (MCA-BTA). See How do I use LabQuest App to measure the frequency of sounds?.

Option 2
a. Collect Microphone data from Go Direct Sound in Graphical Analysis.
b. From the Graph Tools menu, click or tap Apply FFT. FFT data will show in a new graph display.