The problem of the realization of integral sliding mode controllers based only on output information is discussed. The implementation of an output integral sliding mode controller ensures insensitivity of the state trajectory with respect to the matched uncertainties from the initial time moment. In the case when the number of inputs is more than or equal to the number of outputs, the closed lo...

A channel delay can be estimated by evaluating the channel response to a deterministic signal. In the frequency domain, a maximum likelihood delay estimator which accounts for colored Gaussian measurement noise can be formulated. A procedure that allows fast estimation of the channel delay is proposed, in case a low-pass deterministic signal is applied to the channel. Keywords—Fractional delay;...

This study aims to investigate the role of intonation in the perception of emotion in spoken Brazilian Portuguese (BP). Recordings of 32 BP speakers were downloaded from the internet and presented to 36 listeners divided equally into two nationality groups (Brazilian vs. English). The participants performed two perception experiments, one based on normal speech and the other on delexicalised (l...

In this article we introduce a new method to construct finite orthogonal quadrature filters using convolution kernels. We show that every filter with value 1 at the origin can be obtained using an even nonnegative kernel. We apply the method to estimate the optimal frequency localization of finite filters. The frequency localization γp of a finite filter m0 is given by the distance in L p-norm ...

One compact microstrip low-pass filter using conventional elliptical headed dumbbell shaped

The human auditory system is insensitive to phase information of the speech signal. By taking advantage of this fact data such as the transcript, some keywords, and copyright information can be embedded into the speech signal by altering the phase in a prede ned manner. In this paper, an all-pass ltering based data embedding scheme is developed for speech signals. Since all-pass lters modify on...

Present-day Maori elders comment that the mita (which includes rhythm) of the Maori language, has changed over time. This paper presents the first results in a study of the change of Maori rhythm. PVI analyses did not capture this change. Perceptual experiments, using extracts of speech low-pass filtered to 400 Hz, demonstrated that Maori and English speech could be distinguished. Listeners who...

Older listeners with high-frequency hearing loss rely more on intensity for categorisation of /s/ than normal-hearing older listeners. This study addresses the question whether this increased reliance comes about immediately when the need arises, i.e., in the face of a spectrally-degraded signal. A phonetic categorisation task was carried out using intensitymodulated fricatives in a clean and a...