Perceptual evaluation of speech quality-implementation using a non-traditional symbian operating system

The ever increasing challenges to provide high quality, reliable and low cost mobile voice services have made speech quality a major area of research. Due to evolving and liberalized market, the quality of telecommunication voice services has become an important issue. With the advent of new technologies, however, a diversification takes place which makes it necessary to carefully plan and observe network quality. A characteristic of the competitive telecommunications market is the convergence in many aspects of service, such as price between different operators. In this environment, speech quality is becoming a key factor distinguishing one operator from another - a strong indicator for customer satisfaction. Therefore, it is imperative that a service provider is capable of predicting customers´ perceptions of quality so that networks can be optimized and maintained.