Patent ID: 7783053

Claim:
A level meter displaying method of displaying a level meter on a display of a device to which a sound signal is input, the level meter comprising a Volume Unit (VU) meter used in an audio equipment, the method comprising: a displaying step of displaying on the display a scale image obtained according to a single nonlinear function which nonlinearly varies with a signal level of the sound signal, the function being defined for the whole display range of the signal level such that as the signal level becomes lower, a gradient as a rate of change of an indicator angle or indicator position of the level meter increases, the scale image comprising an unequally-spaced scale calibrated at positions varying with a plurality of pre-determined signal levels based on the function; a converting step of converting the signal level of the sound signal into an indicator angle or indicator position of the level meter according to the function; and a level image displaying step of displaying on the display a level image corresponding to the indicator angle or indicator position obtained in said converting step, wherein the function is an nth order function determined by not less than n+1 points of the signal level of the sound signal and the indicator angle or the indicator position, wherein n is a natural number of not less than 2.