Voice over Internet Protocol (VoIP) is a rapidly emerging technology. Currently, the Internet is being wired to support voice and fax traffic. The widespread interest in VoIP is not necessarily the ability of IP to carry voice traffic but the ability to carry voice and fax traffic over data networks. The implications of this are far-reaching. That is, the Internet, for the most part, will event...

A method is described for designing speaker recognition features that are robust to telephone handset distortion. The approach transforms features such as mel-cepstral features, log spectrum, and prosody-based features with a non-linear arti®cial neural network. The neural network is discriminatively trained to maximize speaker recognition performance speci®cally in the setting of telephone han...

An acoustic mismatch between a given utterance and a model degrades the performance of the speech recognition process. We choose to model speech by Hidden Markov Models (HMMs) in the cepstrum domain and the mismatch by an additive bias. To track the variations of this bias, we explicitly model the way in which the bias can vary by a state equation. We derive a frame-synchronous estimator of thi...

mission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE. Abstract Regular analog telephone lines can be directly connected through the telephone network to ISDN terminals. By using appro...

The goal of acoustic Language Identification (LID) is to identify the language of spoken utterances. The described system is based on parallel Hidden Markov Model (HMM) phoneme recognizers. The standard approach for parameter learning of Hidden Markov Model parameters is Maximum Likelihood (ML) estimation which is not directly related to the classification error rate. Based on the Minimum Class...

Cellular Digital Packet Data (CDPD) is a new standard, adopted by a consortium of the major United States cellular telephone companies, for data communication with wireless mobile hosts. CDPD is designed to carry data packets using using either IP or CLNP over the current cellular telephone network, utilizing the available idle capacity of the network not used by voice calls. Although much has ...

The NTT access network encompasses NTT central offices and customer terminals and networks, and consists of transmission devices for individual customers in each NTT central office, transmission lines, and corresponding devices on the customers’ premises. Unlike trunk relay lines between NTT central offices, access networks are not designed to carry concentrated communication traffic. Since cos...

this study was done to evaluate the effect of telephone counseling on mother’s health information regarding the growth and development of less than five years old children in isfahan. in this randomized clinical trial, using a questionnaire, the health information of 1755 women having less than five years old children received telephone counseling for 6 month, compared with 1755 women without a...

Many articles have used voice analysis to detect Parkinson's disease (PD), but few focused on the early stages of and gender effect. In this article, we adapted latest speaker recognition system, called x-vectors, in order PD at an stage using analysis. X-vectors are embeddings extracted from Deep Neural Networks (DNNs), which provide robust representations improve when large amounts training d...