Transient noise effects in measurement of room impulse response by swept sine technique

Abstract

Swept sine technique is one of the most used techniques for measurement of the impulse responses of the acoustical systems including rooms. It uses a swept sine as an excitation signal. During its application, some disturbance, such as noise, could reduce the quality of the measurement results. Two different categories of noise can be distinguished - background and transient noise. In this paper, the attention is focused to the transient noise, its influence on the room impulse response measurement, and reducing its negative effects. For that purpose, several procedures for noise effects reduction are analysed.