Patent ID: 8160282
Filing Date: 2012-04-17
Classification: H04R,H04S

Abstract:
1. A method for adjusting a sound system to a target sound, the sound system having at least two groups of loudspeakers supplied with electrical sound signals to be converted into acoustical sound signals, the method comprising the steps of: individually supplying each group with the respective electrical sound signal; individually assessing deviation of the acoustical sound signal from the target sound for each group of loudspeakers in at least one listening position; adjusting at least two of the groups of loudspeakers to a relatively small deviation from the target sound by equalizing the respective electrical sound signals supplied to the groups of loudspeakers, determining a function representing the average level of all positions; inverting and weighting the function representing the average level function by a first factor; adding the inner distance weighted by a second factor being complementary to the first leading to a new inner distance which represents a modified cost function; and reducing the modified cost function, where the assessment step includes receiving in the listening position the acoustical sound signal from a certain group of loudspeakers, where the total assessment over all listening positions is derived from the assessments at the at least one listening position weighted with a location specific factor, and where each location specific factor comprises an amplitude specific factor and a phase specific factor and where the level over frequency of one position or the average level over frequency of all positions is taken as a reference where subsequently the distance of each individual position from the target function is determined.