A sound wave is a vibration that travels through a solid, liquid or gas such as the air or water. A loud sound has a large amplitude, a high pitched sound has a high frequency. Musicians and ...

In particular the high frequency limit reduces with age. The loudness of a sound is a measure of the amplitude of the wave. The greater the amplitude, the louder the sound. The pitch of a sound is ...

which generates sound waves through vibrations that create alternating zones of compression and rarefaction in air. The film explains key auditory characteristics such as loudness, pitch ...