Title :
Perceptually-based processing of directional room responses for multichannel loudspeaker reproduction
Author :
Merimaa, Juha ; Pulkki, WIle
Author_Institution :
Lab. of Acoust. & Audio Signal Process., Helsinki Univ. of Technol., Espoo, Finland
Abstract :
A novel method for processing directional room responses is proposed. Responses measured with a SoundField microphone or a comparable system are analyzed with an auditory resolution. From this data, loudspeaker responses for an arbitrary 2D or 3D surround sound reproduction system are synthesized. The processed responses yield a sharp and natural directional reproduction of the acoustics of a measured room. The methodology can also be applied to low bitrate audio coding of surround sound.
Keywords :
architectural acoustics; audio signal processing; fast Fourier transforms; loudspeakers; microphones; signal synthesis; sound reproduction; 2D surround sound reproduction system; 3D surround sound reproduction system; FFT; SoundField microphone; audio coding; auditory resolution; directional room responses; loudspeaker responses; multichannel loudspeaker reproduction; perceptually-based processing; room acoustics; Acoustic measurements; Acoustic signal processing; Audio coding; Bit rate; Convolution; Laboratories; Layout; Loudspeakers; Microphones; Signal resolution;
Conference_Titel :
Applications of Signal Processing to Audio and Acoustics, 2003 IEEE Workshop on.
Print_ISBN :
0-7803-7850-4
DOI :
10.1109/ASPAA.2003.1285817
