Abstract
The cross‐correlation method using a periodic pseudorandom sequence or M sequence for impulse response and reverberation time measurements proposed by Schroeder and his colleagues [H. Alrutz and M. R. Schroeder, Proc. 11th Congr. Acoust., Paris (1983)] represents a very significant contribution to the fields of Architectural Acoustics and Noise Control. With this technique, it is not only possible to make measurements in auditoria or offices without disturbing the audience or the occupants, but also in factories or construction sites without closing down their operations. Implementation of this method requires special signal processing techniques which will be reviewed in this presentation. Examples of measurements in simulated noisy environments will also be presented.
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