Extraction of distortion products in room impulse response measurements by MLS method

One of common disturbances in the room impulse response measurements is nonlinearity. When maximum length sequence (MLS) method is used, the distortion products are distributed along the impulse response. This property has been widely used in the auditory system applications for characterization of nonlinear systems. However, it has not been exploited in room acoustics. Due to that, possibility of extracting the distortion products in the room impulse response measurements by MLS method is analyzed here.