Previous objective speech quality assessment models, such as bark spectral distortion (BSD),
the perceptual speech quality measure (PSQM), and measuring normalizing blocks (MNB)…

In the Viterbi algorithm, the negative log-likelihood estimates, accumulated distances, or
path metrics are unboundedly increasing functions of time. For implementation, all variables …

If in a transmission the inputs of a single-output two-way channel exhibit some interdependence,
this dependence must have been created during earlier transmissions. The idea that no …

With the introduction and standardization of new technologies for telephony services, which
introduce new types of distortions such as voice-over IP (packet loss and variable delay), …

… At Psytechnics he has led the company through formation, initial expansion and market
development, launching a Andries P. Hekstra was born in Breda, The Netherlands, in 1961. He …

Modern video coding systems such as ISO-MPEG1,2,4 exploit properties of the human visual
system, to reduce the bit rate at which a video sequence is coded, given a certain required …

The Video Quality Experts Group (VQEG) was formed in October 1997 to address video
quality issues. The group is composed of experts from various backgrounds and affiliations, …

This paper describes a new model for perceptual evaluation of speech quality (PESQ). This
model is based on an integration of the perceptual speech quality measure (PSQM99) and …

With storage capacities increasing much faster than data rates, fast read-out of content is
becoming a bottleneck for the convenient use of optical storage devices. Two-dimensional …

The paper introduces the concept of two-dimensional optical storage (TwoDOS). In this concept,
bits are written in a broad spiral consisting of a number of bit-rows stacked together in a …