Pitch
The pitch of a sound is a subjective measure of the frequency of the sound and is related to the perceived highness or lowness of the sound. The pitch of a sound is measured in hertz (Hz).
Loudness
Loudness is a measure of sound intensity, or the volume of a sound. It is measured in decibels (dB). The higher the decibel level, the louder the sound. Loudness is an important factor in determining the overall quality of a sound, as it can affect how clearly a sound is heard and how pleasurable it is to listen to.