Title :
High Resolution Analysis of Impact Sounds and Forces
Author :
Reissell, L.-M. ; Pai, Dinesh K.
Author_Institution :
Dept. of Comput. Sci., British Columbia Univ., Vancouver, BC
Abstract :
Impact sounds and vibrations are an important source of information about contact interactions in haptics, robotics, and virtual reality. However, accurate estimation of their parameters for perceptually acceptable resynthesis is difficult with traditional methods. In this paper, we describe the phase-constrained estimation algorithm for estimating modes and amplitudes from impact signals. It is based on ESPRIT and least squares estimation, and produces better resynthesis results than previously used methods
Keywords :
amplitude estimation; least squares approximations; signal synthesis; vibrations; ESPRIT; impact force; impact sound; least squares estimation; phase-constrained estimation; vibration; Acoustic noise; Amplitude estimation; Discrete Fourier transforms; Frequency estimation; Haptic interfaces; Maximum likelihood estimation; Parameter estimation; Phase estimation; Signal processing algorithms; Signal resolution;
Conference_Titel :
EuroHaptics Conference, 2007 and Symposium on Haptic Interfaces for Virtual Environment and Teleoperator Systems. World Haptics 2007. Second Joint
Conference_Location :
Tsukaba
Print_ISBN :
0-7695-2738-8
DOI :
10.1109/WHC.2007.70
