A simple method for estimating the impulse responses of loudspeakers

In this paper we consider the problem of estimating the impulse responses of loudspeakers. This is an important problem since loudspeaker impulse responses constitute a vital component in some signal processing applications such as correction of loudspeaker characteristics. Up to now the most accurate but also most expensive method has been to estimate the impulse responses from measurements taken in an anechoic chamber. We present a method that allows good estimation of loudspeaker impulse responses in an ordinary echoic environment. This is accomplished by estimating the acoustic path of the room using a second loudspeaker with a known impulse response. Numerical simulations are carried out in order to study the performance of the suggested method.