Frequency contour detection in spectrogram

1. How is frequency shown on a spectrogram?
2. What is frequency contour?
3. How do you increase frequency resolution in spectrogram?

How is frequency shown on a spectrogram?

The vertical axis represents frequency, which can also be thought of as pitch or tone, with the lowest frequencies at the bottom and the highest frequencies at the top.

What is frequency contour?

Circular contour frequency describes the number of radial cycles per degree of contour length and has the units of cycles per contour length in degrees (cycles/cl-deg).

How do you increase frequency resolution in spectrogram?

In order to increase the precision of the peak frequencies beyond the spectrogram resolution, an interpolation algorithm is used. This parameter determines the number of points used for interpolation.