The idealization of the echolocation of microbats can be summarized as follows: Each virtual bat flies randomly with a velocity at position (solution) with a varying frequency or wavelength and loudness .
Grey noise is random white noise subjected to a psychoacoustic equal loudness curve (such as an inverted A-weighting curve) over a given range of frequencies, giving the listener the perception that it is equally loud at all frequencies.
Later in the year, on Saturday September 6, BLMC and local radio station 92X brought AC/DC's Who Made Who World Tour, which included Quiet Riot and Loudness.
Endorsed by ESP guitars (AX 400), Scheithauer played and/or recorded with members of Kiss, Black Sabbath, Megadeth, Ozzy Osbourne, Testament, Slayer, W.A.S.P., Anthrax, Loudness, Yngwie Malmsteen and Accept among others.
Thus, for example, s1 Protection from Harassment Act 1997 would now be used in cases involving multiple telephone calls, and s63 Criminal Justice and Public Order Act 1994 confers powers on the police to remove persons attending or preparing for a rave "at which amplified music is played during the night (with or without intermissions) and is such as, by reason of its loudness and duration and the time at which it is played, is likely to cause serious distress to the inhabitants of the locality".