Multimedia Performance

Developing High-Performance Multimedia Applications

dream.Medusa: An interactive multimedia performance

dream.Medusa is a multimedia piece combining performance, responsive video, and audience feedback. Live vocalization and participant controlled devices provide interaction into a simulated lucid dream environment created with Max/MSP and Jitter. We discuss the concept of the piece, the interaction technologies, and the experience of performing with interactive participants. This document provid...

Multimedia Application Performance on a WiMAX Network

In this paper, we use experimental measurements to study the performance of multimedia applications over a commercial IEEE 802.16 WiMAX network. Voice-over-IP (VoIP) and video streaming (RealPlayer) applications are tested. The WiMAX-based network solidly supports VoIP, providing adequate quality for short to medium duration calls. The voice quality degradation compared to high-speed Ethernet i...

Analysis of Caching Performance in Multimedia Servers

The design of multimedia servers faces significant challenges to support large numbers of concurrent customers because multimedia data require real-time playback and high transfer rates. These requirements impose heavy burdens on the underlying storage subsystems and lead to rapid consumptions of network bandwidth. Interval caching is an efficient way to reduce the disk bandwidth requirements i...

Performance of Multimedia Applications with IPSec Tunneling

The concept of Virtual Private Networks offers a simple and cheap alternative to dedicated secure networks in corporate networks and Internet environments. The choice, however, of authentication and encryption techniques and protocols affect issues such as data throughput and performance throughout the network. This paper looks into the effects of video and audio streaming on performances, whil...