Journal article
Stimulus design for auditory neuroethology using state space modeling and the extended Kalman smoother
Hearing research, Vol.247(1), pp.1-16
2009
Handle:
https://hdl.handle.net/2376/103663
PMID: 18977287
Abstract
A new method for designing vocalization based stimuli for experiments in auditory neurophysiology is described. This analysis-synthesis technique leverages a state space statistical signal model and the extended Kalman smoother for tracking the frequency, amplitude, and phase information of harmonically related components in recorded vocalizations. Using the same state space model, these parameters can then be used to synthesize the vocalizations and random or deterministic variants of the vocalizations. This method is shown to outperform short-time Fourier transform based frequency tracking methods in both noisy and noise-free synthetic test signals. It is further shown to accurately track recorded hummingbird, human, and bat vocalizations while removing recording artifacts such as noise, echo, and digital aliasing in the synthesis phase.
Metrics
14 Record Views
Details
- Title
- Stimulus design for auditory neuroethology using state space modeling and the extended Kalman smoother
- Creators
- Lars Holmstrom - Biomedical Signal Processing Laboratory, Portland State University, P.O. Box 751, Portland, OR 97207-0751, USASunghan Kim - Biomedical Signal Processing Laboratory, Portland State University, P.O. Box 751, Portland, OR 97207-0751, USAJames McNames - Biomedical Signal Processing Laboratory, Portland State University, P.O. Box 751, Portland, OR 97207-0751, USAChristine Portfors - Auditory Neurophysiology Laboratory, Washington State University, 14204 NE Salmon Creek Ave., Vancouver, WA 98686, USA
- Publication Details
- Hearing research, Vol.247(1), pp.1-16
- Academic Unit
- Office of the Provost
- Publisher
- Elsevier B.V
- Identifiers
- 99900546692501842
- Language
- English
- Resource Type
- Journal article