2004 Articles
PLP2: Autoregressive modeling of auditory-like 2-D spectro-temporal patterns
The temporal trajectories of the spectral energy in auditory critical bands over 250 ms segments are approximated by an all-pole model, the time-domain dual of conventional linear prediction. This quarter-second auditory spectro-temporal pattern is further smoothed by iterative alternation of spectral and temporal all-pole modeling. Just as Perceptual Linear Prediction (PLP) uses an autoregressive model in the frequency domain to estimate peaks in an auditory-like short-term spectral slice, PLP2 uses all-pole modeling in both time and frequency domains to estimate peaks of a two-dimensional spectrotemporal pattern, motivated by considerations of the auditory system.
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Files
- sapa04-plp2.pdf application/pdf 236 KB Download File
Also Published In
- Title
- ISCA Tutorial and Research Workshop on Statistical and Perceptual Audio Processing, ICC Jeju, Korea, October 3, 2004
- Publisher
- International Speech Communication Association
More About This Work
- Academic Units
- Electrical Engineering
- Published Here
- June 28, 2012