Howtosignalprocessing
- How is a spectrogram created?
- What are the three dimensions of a spectrogram?
- How do you make words into a spectrogram?
How is a spectrogram created?
To generate a spectrogram, a time-domain signal is divided into shorter segments of equal length. Then, the fast Fourier transform (FFT) is applied to each segment. The spectrogram is a plot of the spectrum on each segment.
What are the three dimensions of a spectrogram?
A common format is a graph with two geometric dimensions: one axis represents time, and the other axis represents frequency; a third dimension indicating the amplitude of a particular frequency at a particular time is represented by the intensity or color of each point in the image.
How do you make words into a spectrogram?
You can activate the linear frequency scale in the Spectrogram Options dialog. In the Selection section, click Text Selection. In the Text Selection dialog, enter the text and click OK. You can resize and move the text frame.
