What is the neural representation of a speech code as it evolves in time? A neural model simulates data concerning segregation and integration of phonetic percepts. Hearing two phonetically related stops in a VC-CV pair (V = vowel; C = consonant) requires 150 ms more closure time than hearing two phonetically different stops in a VC1-C2V pair. Closure time also varies with long-term stimulus ra...

In this paper, we present a variable bit rate control method for speech/audio coding, under the constraint that the total bit rate of a super-frame to be a constant. The proposed method uses a trellis diagram for optimizing the overall quality of the super-frame. In order to reduce the computational complexity, the trellis diagram uses approximation by ignoring the encoder memory state between ...

section, leading to the introduction of our proposed variable bit rate system. After some coverage of the performance of the system with a standard linear predictor, we introduce a Kalman predictor, and show an approach to reduce the computational complexity. We discuss the use of perceptual weighting within the system, and bit error resynchronization for the Arithmetic Coding (AC) data stream....

additional advantages of RCBR are that it is easy to implement, since CBR service is well understood and we are merely adding a fast renegotiation component to it. By building on CBR service, we make the network design simple, since neither complex scheduling disciplines nor large network buuers are required for CBR traac. It has recently come to our notice that Chong et al 2] have independentl...