The higher the intensity of a sound, the louder it is perceived in our ears, and the higher volume it has. Since intensity is a function of energy, and energy is related to amplitude, then we can make the conclusion that the volume of a sound is proportional to the amplitude of the sound wave.
This Day in History: 10/03/1995 - O.J. Simpson Aquitted. On this day in 1995, at the end of a sensational trial, former football star O.J. Simpson is acquitted of the brutal 1994 double murder of his estranged wife, Nicole Brown Simpson, and her friend, Ronald Goldman.
In an exhaustive book,  O.J. Is Innocent And I Can Prove It , private investigator William C. Dear details his 18-year investigation of the June 12, 1994, murders of Nicole Brown Simpson and Ron Goldman.And if there is any conceivable explanation for O.J. Simpson's bizarre behavior after the murders other than that he killed his ex-wife, it is that he knew that his son had killed Nicole Brown Simpson and wanted to protect him.).