Packet speech measurement facility

The Packet Speech Measurement Facility (PSMF) is a recording, playback, and measurement facility designed to provide members of the Network Secure Communications (NSC) Project with an investigative tool for packetized speech research. PSMF access will facilitate experiments dealing with the effects of network induced perturbations on real-time communications. This report describes efforts which have culminated in the specification of PSMF design, the development of an access protocol, and the release of a trial facility with operational recording and playback functions. Chapter 2 reviews the PSMF design philosophy and structure detailed in the Preliminary Design Document of February 28, 1977. Chapter 3 elucidates the approaches CCA has taken to implement this structure. Chapter 4 discusses the work scheduled for completion of this initial phase of the PSMF, while chapter 5 provides a summary of PSMF efforts and plans.