Test and Evaluation of Video Teleconferencing at 56 kbps.
Abstract
The National Communications System is actively working with the CCITT and ANSI Standards organizations toward the establishment of a standard for video teleconferencing at ISDN communication rates below 1.544 Mbps (e.g. 384 kbps, 64 kbps, 56 kpbs), The 56 kbps data race is of particular importance because AT&T has announced a circuit-switched data network operating at this rate which will use the public switched telephone network. The ubiquitous network will provide an excellent resource for future teleconferencing applications. Concurrent with the evolution of the switched 56 kbps data network. Although the animation distortion of these codecs is more severe than the 1.544 Mbps codecs, it is likely that the image quality will be acceptable for many teleconference applications. The purpose of this project is to determine the acceptability of the video teleconference image guality wehn operating at 56 kbps. This was accomplished by installing a video teleconference system in an operational environment and evaluating the acceptability of the service.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 1985
- Accession Number
- ADA156760
Entities
Organizations
- Delta Information Systems (United States)