Enabling Ultra-Low Delay Teleorchestras using Software Defined Networking

TL;DR

This paper introduces a novel SDN-based architecture for Networked Music Performance systems, enabling ultra-low delay communication by allowing applications to adapt to network conditions, thus supporting live performances over the Internet.

Contribution

It proposes a new SDN-enabled architecture that allows NMP applications to dynamically adapt their processing to maintain ultra-low latency.

Findings

Achieves end-to-end delay suitable for live music performance

Enables adaptation of audio processing based on network conditions

Supports performance under network congestion

Abstract

Ultra-low delay sensitive applications can afford delay only at the level of msec. An example of this application class are the Networked Music Performance (NMP) systems that describe a live music performance by geographically separate musicians over the Internet. The present work proposes a novel architecture for NMP systems, where the key-innovation is the close collaboration between the network and the application. Using SDN principles, the applications are enabled to adapt their internal audio signal processing, in order to cope with network delay increase. Thus, affordable end-to-end delay is provided to NMP users, even under considerable network congestion.