FOUR AUDIO

We supply measurement technology and software that covers a very wide range of measurements for loudspeakers and room acoustics as well as enabling automated QC solutions. Our scalable system software covers a very wide range: from preset creation for DSPs incl. FIR filter calculation for loudspeaker equalization to SPL calculation for distributed systems and multiple listening areas, beamsteering and system equalization... Although being founded in 2007, the history of Four Audio's products goes back to the mid 1980s. At the Institute of Technical Acoustics at RWTH Aachen University, first attempts to use FIR filters for loudspeaker equalization were made. At that time, due to limited processing power, relatively short FIR filters and a lot of special FIR-processors had to be used. With funding from loudspeaker companies, several researchers were involved in optimizing performance considering processing power as well as signal quality.

Also known as: Four Audio GmbH & Co. KG

Primary location: Herzogenrath Germany