For the purposes of this chapter, the following definition applies unless the context clearly indicates or requires a different meaning.
Excessive or Unusual Noise. Noise in excess of the usual noise that would necessarily result from the operation of a motor when reduced to the minimum by a muffler such as is defined in this article.
(Sec. 15-2.12, R.O. 1978 (1983 Ed.)) (1990 Code, Ch. 15, Art. 2, § 15-2.13)