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This paper presents an analysis of issues related to the fixed-point implementation of a speech signal applied to biometric purposes. For preparing the system for automatic speaker identification and for experimental tests we have used the Matlab computing environment and the development software for Texas Instruments digital signal processors, namely the Code Composer Studio (CCS). The tested speech...
W artykule zaproponowano nową metodę czasu rzeczywistego do segmentacji mówców w rozmowach telefonicznych. Zakładamy, że dzięki dostępowi do wyposażenia jednej ze stron (np. biura operatora centrum obsługi telefonów alarmowych) istnieje możliwość dodania cyfrowego znaku wodnego do wypowiedzi operatora. Przedstawiona procedura może służyć jako wstępny etap przetwarzania sygnału w zagadnieniach automatycznego...
This paper presents results of our research on automatic telephone call speaker recognition. A significant improvement of recognition quality can be observed if we use the knowledge on how the original speech was coded, e.g., using GSM or PCM telephone standard. On this basis we can improve the quality of the speaker models. In order to realize such a speech analyzer we propose to analyze the mean...
In this paper we present novel signal processing techniques for improvement of intelligibility of the so-called pseudowhisper, which is a kind of the residual speech, typical for the rest speaking abilities of a major part of the laryngectomized patients, i.e., of those, who went through the larynx (vocal cords) removal surgery. First of all we show how it is possible to suppress annoying vocal artifacts...
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