- Music is produced by vibrations that are organized in a pleasing or harmonious way, while noise is produced by vibrations that are disorganized or harsh.
- The most common source of vibrations that produce music is a musical instrument. When a musician plays an instrument, they are causing the instrument to vibrate, which in turn creates sound waves. These sound waves travel through the air and reach our ears, where they are converted into electrical signals that are interpreted by our brains as music.
- Noise can be produced by a variety of sources, including machines, vehicles, and even animals. When these sources vibrate, they create sound waves that are irregular and unpleasant to the ear. The human ear is more sensitive to some frequencies of sound than others, and noise is often characterized by frequencies that are particularly harsh or loud.
In physics, sound is a vibration that propagates as an acoustic wave, through a transmission medium such as a gas, liquid or solid. In human physiology and psychology, sound is the reception of such waves and their perception by the brain.
The scientific study of sound is called acoustics and psychoacoustics.