Sound system equalization

US8160282B2 · kind B2 · utility

Assignee

• HARMAN BECKER AUTOMOTIVE SYSTEMS GMBH · DE

Inventors

• Markus Christoph · Straubing, DE
• Leander Scholz · Salching, DE

Key dates

• Filing date: Apr 5, 2007
• Grant date: Apr 17, 2012
• Expiry date: Dec 20, 2030

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04R2499/13
• WIPO field: Audio-visual technology
• WIPO sector: Electrical engineering

Abstract

An automatic sound system equalizer adjusts a sound system to a target sound, where the sound system includes at least two groups of loudspeakers supplied with electrical sound signals to be converted into acoustical sound signals. The equalizer sequentially supplies each group with the respective electrical sound signal; sequentially assesses the deviation of the acoustical sound signal from the target sound for each group of loudspeakers, and adjusts at least two groups of loudspeakers to a relatively small, preferably minimum deviation from the target sound by equalizing the respective electrical sound signals supplied to the groups of loudspeakers.