Title :
Phase and randomness in acoustic responses
Author :
Kelly, Ian J. ; Boland, Francis M. ; O´Toole, Brian ; Gorzel, Marcin
Author_Institution :
Dept. of Electron. & Electr. Eng., Trinity Coll. Dublin, Dublin, Ireland
Abstract :
In this paper acoustic responses are examined with respect to the locations of their zeros or roots. This information is then used to inform an analysis of the pitfalls of the most common method of minimum phase approximation and the use of minimum phase versions of acoustic impulse responses. Acoustic polynomials can be shown to inherently have zeros on or very near the unit circle which can cause large errors in the minimum phase calculation.
Keywords :
architectural acoustics; auditory evoked potentials; polynomials; random processes; acoustic impulse response; acoustic polynomial; acoustic response phase; acoustic response randomness; minimum phase approximation; Acoustic Response; HRIR; Minimum Phase; RIR; Random Polynomials; Roots; Zeros;
Conference_Titel :
Irish Signals & Systems Conference 2014 and 2014 China-Ireland International Conference on Information and Communications Technologies (ISSC 2014/CIICT 2014). 25th IET
Conference_Location :
Limerick
DOI :
10.1049/cp.2014.0657