We present a speech processing strategy incorporating instantaneous frequency (IF) encoding for the enhancement of melody recognition performance of cochlear implants. For the IF extraction from incoming sound, we propose the use of a Teager energy operator (TEO), which is advantageous for its lower computational load. From time-frequency analysis, we verified that the TEO-based method provides...

Transient impulses caused by local faults are critical informative indicators for rolling element bearing fault diagnosis. The methods accurately extracting transient while suppressing strong background noise and interference components have received extensive studies. In this article, a novel diagnosis scheme based on optimized wavelet packet denoising modulation signal bispectrum is proposed,...

This paper focuses on the design of two analog nonlinear transformations dedicated to signal processing such as energy detection: square function and Teager Energy Operator (TEO). Both requiring an multiplier, this firstly analyses equations a MOS Gilbert cell in order operate around mid supply voltage. Considering this, having differential input range ±400 mV, has been designed using AMS 0.35 ...

An approach to the joint estimation of sine-wave amplitude modulation (AM) and frequency modulation (FM) is described based on the transduction of frequency modulation into amplitude modulation by linear filters, being motivated by the hypothesis that the auditory system uses a similar transduction mechanism in measuring sine-wave FM. An AM-FM estimation algorithm is described that uses the amp...

In this paper, the audio emotion recognition system is proposed that uses a mixture of rule-based and machine learning techniques to improve the recognition efficacy in the audio paths. The audio path is designed using a combination of input prosodic features (pitch, log-energy, zero crossing rates and Teager energy operator) and spectral features (Mel-scale frequency cepstral coefficients). Me...

let h be a finite dimensional complex hilbert space, b(h)+ be the set of all positive semi-definite operators on h and phi is a (not necessarily linear) unital map of b(h) + preserving the entropy-gibbs transformation. then there exists either a unitary or an anti-unitary operator u on h such that phi(a) = uau* for any b(h) +. thermodynamics, a branch of physics that is concerned with the study...

The 1-D Teager algorithm can be used to perform mean weighted highpass filtering with relatively few operations. We propose a generalization of the Teager algorithm. The modified algorithm allows us to adjust the dependence of the highpass output on the local mean. The derivation and interpretation of the modified algorithm is presented. Finally, the response of several implementations to a tes...

TEAGER is a tool suite supporting test automation based on UML state machines, conforming to the UML semantics definition. For testing, the various sources of non-determinism in state machines pose major challenges. This article discusses those challenges and the approach for their solution taken in TEAGER. This includes probabilistic batch generation of test cases, which include expected obser...