DocumentCode :
706140
Title :
An hybrid approach of low frequency room equalization: Notch filters based on common acoustical pole modeling
Author :
Ndo, G. ; Shaiek, H. ; Jaidane, M. ; Boucher, J.M.
Author_Institution :
Unite Signaux et Syst., ENIT, Tunis, Tunisia
fYear :
2007
fDate :
3-7 Sept. 2007
Firstpage :
1600
Lastpage :
1604
Abstract :
In this paper, a new method of low frequency multiple-point equalization for room acoustics is presented. This approach is theoretically based on Common Acoustical Pole (CAP) modeling of the room transfer functions developed previously by Haneda et al. [1]. With the hybrid approach, the multiple-point equalizer is made up with cascaded notch filters which coefficients are directly determined from the CAP model. This new method reduces the complexity of the equalizing structure in addition to an automatisation of notch filters design which should be very attractive to many applications such as home theater systems by intelligently controlling room modes.
Keywords :
acoustic signal processing; architectural acoustics; equalisers; notch filters; transfer functions; CAP modeling; cascaded notch filters; common acoustical pole modeling; low frequency multiple-point equalization; low frequency room equalization; multiple-point equalizer; notch filter automatisation; room acoustics; room transfer functions; Acoustics; Equalizers; Frequency measurement; Gain; Mathematical model; Receivers; Resonant frequency;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Signal Processing Conference, 2007 15th European
Conference_Location :
Poznan
Print_ISBN :
978-839-2134-04-6
Type :
conf
Filename :
7099076
Link To Document :
بازگشت