Raumkalibrierung

Raumkalibrierung, often translated as room calibration or room correction, is a process used in audio systems to compensate for the acoustic characteristics of a listening environment. When sound waves interact with a room, they are reflected by surfaces such as walls, ceilings, and floors, and absorbed by furniture and other objects. These interactions can lead to undesirable effects like uneven frequency response, echoes, and reverberation, which negatively impact sound quality.

The goal of Raumkalibrierung is to analyze these room-induced acoustic anomalies and then apply digital signal processing techniques to correct them. This typically involves using a measurement microphone placed at the primary listening position to capture the room's acoustic response. Specialized software then analyzes this data, identifying peaks and dips in the frequency spectrum and the timing of reflections.

Based on this analysis, the calibration software generates an equalization curve or impulse response that is applied to the audio signal before it is sent to the speakers. This correction aims to create a more neutral and accurate sound reproduction, as close as possible to what the sound engineer intended. Raumkalibrierung is commonly found in home theater receivers, soundbars, and high-end audio processors, significantly improving the listening experience in diverse room environments.