A new method to acquire impulse responses in concert halls
A. J. C. Stijn Berkhout, Dirk Vries, Marinus M. Boone · The Journal of the Acoustical Society of America · 1980
A new method is proposed to acquire impulse responses in concert halls with large signal-to-noise ratios and with a high resolution. In our proposal an omnidirectional loudspeaker is used which is driven by an amplified sweep: a signal containing all frequencies of interest smeared out in time. By using a deconvolution technique, an almost perfect pulse is obtained with a high peak pressure and a short effective duration. Measurements were made in two different concert halls to illustrate the practical implications of the new technique.