منابع مشابه
Speech Quality Assessment
This chapter provides an overview of the various methods and techniques used for assessment of speech quality. A summary is given of some of the most commonly used listening tests designed to obtain reliable ratings of the quality of processed speech from human listeners. Considerations for conducting successful subjective listening tests are given along with cautions that need to be exercised....
متن کاملA Simple Algorithm for the Restoration of Clipped Speech Signal
This paper deals with the problem of peak clipped speech. Our basic assumption is that the clipped speech is voiced and can be linearly predicted with a high accuracy. The coefficients of linear prediction are computed using two different algorithms: a least square direct method and a recursive Kalman filter. The speech reconstruction is accomplished using backward prediction. Povzetek: Predsta...
متن کاملSpeech Quality Assessment of Compounded Digital Telecommunication
Digital telecommunication networks may involve a multiple number of public switched telephone networks (PSTN), cellular and mobile systems and to some extent also satellite systems. Most of these networks contain non-linear speech coders and other speech algorithms which may degrade the overall end-to-end quality of speech. An important problem is how to assess the speech quality of such compou...
متن کاملQuality Assessment of Wideband Speech Communication Services
This article describes a method for estimating the subjective quality of wideband (7-kHz) speech solely from physical characteristics of terminals and networks. It enables efficient quality design and management of wideband speech communication services. The validity of this model was shown through experiments. Quality Assessment of Wideband Speech Communication Services Letters † NTT Service I...
متن کاملAssessment of Speech Quality in VoIP
In VoIP (Voice over Internet Protocol), the voice is transmitted over the IP networks in the form of packets. This way of voice transmission is highly cost effective since the communication circuit need not to be permanently dedicated for one connection; however, the communication band is shared by several connections. On the other hand, the utilization of IP networks causes some drawbacks that...
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ژورنال
عنوان ژورنال: Electronics and Control Systems
سال: 2018
ISSN: 1990-5548
DOI: 10.18372/1990-5548.58.13504