Ethernet for Studio Audio Systems

Using audio codecs IP as the digital audio hub in mobile multimedia systems

Time Synchronization in Automotive Ethernet Networks

There are many different time-critical Ethernet applications in the automobile. They include advanced driver assistance systems (ADAS) with cameras and (radar) sensors, real-time audio and video streams, and backbones for synchronizing various physical domains (Figure 1). Another use case is on-board data logging. Moreover, devices networked via Ethernet must naturally also be synchronized with...

The Ethernet Speaker System

If we wish to distribute audio in a large room, building, or even a campus, we need multiple speakers. These speakers must be jointly managed and synchronized. The Ethernet Speaker (ES) system presented in this paper can be thought of as a distributed audio amplifier and speakers, it does not “play” any particular format, but rather relies on off-the-shelf audio applications (e.g., mpg123 playe...

An Innovative System for Full-Management of CB Using Current Injection Method

In this article, an innovative supervision system will be proposed that can observe and analyze health of Circuit Breaker’s trip coil. The proposed design also logs changes in the coil's quality and informs network supervisor in case of Circuit Breaker (CB) failure. This system injects small direct currents to the Circuit Breaker connections and the trip coil to compute CB’s health and characte...

Improving audio-visual speech recognition with an infrared headset

Visual speech is known to improve accuracy and noise robustness of automatic speech recognizers. However, almost all audio-visual ASR systems require tracking frontal facial features for visual information extraction, a computationally intensive and error-prone process. In this paper, we consider a specially designed infrared headset to capture audio-visual data, that consistently focuses on th...