Observation of waveform

  In the case of 20-second recording, the time axis of the spectrogram screen moves by slowly tracing the spectrogram screen left and right (panning operation).
  Quickly tracing (swiping) up and down changes the frequency display range on the screen. Tap the top/bottom edge to change the hue.These drawing conditions can also be detailed on the  "Settings"  page.Please note that there is a time lag when changes to these screen display conditions are reflected.
  Tap any part of the spectrogram to display the waveform of that part below.

  Tap at the top to increase the amplitude, and tap at the bottom to decrease it.
  In addition, the time axis can be expanded (pinch out) and contracted (pinch in) by changing the distance between two fingers on the screen.