Music Server System : Distributed Music System on Local Area Network

概要

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This paper describes the system architecture and design consideration of a music server system. The music server system is a platform for music applications under a distributed environment. It is designed by the serverclient model, and offers special functions dedicated to musical applications. The music server system is implemented on a workstation and a personal computer connected via a local area network. The system is made of several processes: a music server, a clock client, a device-driver client and application clients. They cooperate using the inter-process communication with a special protocol. Model of the music server consists of the following abstractions: event, track, and time map. An event is defined as a pair of an action and time at which the action is issued. A track holds events, fires events punctually and converts server time to track time according to the time map. The network delay and the process switching overhead may not only increase the response time of the system but also degrade the time accuracy. The algorithm basically incorporates deadline scheduling and event buffering for keeping the time accuracy high enough. We have evaluated the buffer delay and investigated the dominant parameters
一般社団法人情報処理学会の論文
1992-03-31