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Beginning with Ver. 2.0 of LecNet 2 firmware for the DMTH4 telephone interface, improved algorithms are used in the acoustic and line echo cancellers. No hardware modifications were made, so the firmware can be downloaded and installed into earlier DMTH4 processors.
An explanation of the processes and performance of the LecNet2 solutions to the problems encountered when sound systems are used for teleconferencing. It is intended for system integrators, consultants and others involved in the system design.
An overview on typical diversity reception techniques.
Cryptography is an ancient art. For as long as there have been secrets, systems have been devised to lock them up... and to pry open the locks. This paper discusses the Lectrosonics encryption system.
A report on spread spectrum RF techniques as applied to wireless microphone systems based on currently available devices and technological capabilities.