Title :
Low-order modeling of head-related transfer functions using balanced model truncation
Author :
Mackenzie, Jonathan ; Huopaniemi, Jyri ; Valimaki, Vesa ; Kale, Izzet
Author_Institution :
Dept. of Electron. & Electr. Eng., King´´s Coll., London, UK
Abstract :
We propose a novel technique for the design of low-order infinite impulse response (IIR) filter models of head-related transfer functions (HRTFs) that uses balanced model truncation. We design tenth-order IIR filters, suitable for efficient real-time implementation, from preprocessed HRTF impulse responses that are of significantly superior quality to current IIR models derived with the Prony and Yule-Walker methods.
Keywords :
IIR filters; acoustic signal processing; digital filters; filtering theory; transfer functions; IIR filter models design; acoustic transmission; balanced model truncation; head related transfer functions; infinite impulse response filter; linear time invariant filter; low order modeling; real-time implementation; tenth-order IIR filters; Computational modeling; Delay effects; Ear; Finite impulse response filter; Humans; IIR filters; Irrigation; Position measurement; Redundancy; Transfer functions;
Journal_Title :
Signal Processing Letters, IEEE
