How many hz and 1 decibel?

The number of hertz refers to the frequency of sound waves, while decibels measure the intensity or loudness of the sound. The relationship between the two is not direct; an increase in hertz does not necessarily correspond to an increase in decibels. Decibels measure the sound pressure level on a logarithmic scale, so a change of 10 dB represents a tenfold change in sound intensity.