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Proceedings ArticleDOI

On a simple algorithm to calculate the 'energy' of a signal

J.F. Kaiser
- pp 381-384
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TLDR
The results of applying this algorithm to a number of well-known signals are shown and some of the invariance and noise properties of the algorithm are derived and verified by simulation.
Abstract
A simple algorithm is derived that permits on-the-fly calculation of the energy required to generate, in a certain sense, a signal. The results of applying this algorithm to a number of well-known signals are shown. Some of the invariance and noise properties of the algorithm are derived and verified by simulation. The implementation of the algorithm and its application to speech processing are briefly discussed. >

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Journal ArticleDOI

Survey on speech emotion recognition: Features, classification schemes, and databases

TL;DR: A survey of speech emotion classification addressing three important aspects of the design of a speech emotion recognition system, the choice of suitable features for speech representation, and the proper preparation of an emotional speech database for evaluating system performance are addressed.
Journal ArticleDOI

Energy separation in signal modulations with application to speech analysis

TL;DR: The experimental results provide evidence that bandpass-filtered speech signals around speech formants contain amplitude and frequency modulations within a pitch period, and several efficient algorithms are developed and compared for estimating the amplitude envelope and instantaneous frequency of discrete-time AM-FM signals.
Journal ArticleDOI

On amplitude and frequency demodulation using energy operators

TL;DR: It is shown that the nonlinear energy-tracking signal operator Psi and its discrete-time counterpart can estimate the amplitude envelope of AM signals and the instantaneous frequency of FM signals.
Journal ArticleDOI

Efficient nonlinear algorithm for envelope detection in white light interferometry

TL;DR: The new algorithm is shown to be near optimal in terms of computational efficiency and can be represented as a second-order nonlinear filter and in combination with a carefully designed peak detection method the algorithm exhibits exceptionally good performance on simulated interferograms.
Journal ArticleDOI

Nonlinear feature based classification of speech under stress

TL;DR: Three new features derived from the nonlinear Teager (1980) energy operator (TEO) are investigated for stress classification and it is shown that the TEO-CB-Auto-Env feature outperforms traditional pitch and mel-frequency cepstrum coefficients (MFCC) substantially.
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