Used by the phone company, an echo canceller is an electronic circuit that eliminates echo (or positive feedback) on a phone network and on video conference telephony links.
An electronic circuit which eliminates or attenuates the echo effect on satellite signals.
A circuit feature that turns off the incoming signal while one end of the call is talking (to avoid an annoying long distance echo). It must be disabled for Full Duplex (simultaneous 2-way calls). An echo canceller does not turn off the voice channel, as stated, but electronically removes unwanted echo, while maintaining a full-duplex channel. An echo suppressor disables the channel in one direction or the other, depending on who is talking. Echo cancellers must be disabled for some types of high speed modems calls, and must also be disabled for "clear channel" data calls, such as ISDN. Updated by: Jerry Skene, VP Business Development, Coherent Communications Systems Corp.
See acoustic echo canceller or network echo canceller.
A videoconferencing term in which a device that blocks echo reflections during a conference while maintaining apparent full duplex audio. Echo reflections are caused when microphones are opened at both ends ofa teleconference cting an echo effect when slightly delayed audio signals are transmitted back and forth between sites.
The software component responsible for performing echo cancellation.
An electronic circuit which attenuates or eliminates the echo effect on satellite telephony links. Echo cancellers are largely replacing obsolete echo suppressors.
Eliminates audio transmission echo. A telephone line echo canceller produces a synthetic replica of the echo it expects to see returning and subtracts it from the transmitted speech. The replica it creates is based on the transmission characteristics of the telephone cable between echo canceller and the telephone or videoconferencing system. Device that allows for the isolation and filtering of unwanted signal caused by echoes from the main transmitted signal.
The echo cancelling system allows microphone/s to work at peak performance by eliminating echo in a videoconferencing room
An electronic circuit which attenuates or eliminates the echo effect on satellite telephony circuits. Echo cancellers are largely replacing archaic echo suppressor circuitry.
An Echo canceller is a telecommunications device used to remove the echo that can result from delay on a telecommunications circuit. This delay can be the result of the length of the circuit or due to packetization or queuing delay. As a result, echo cancellers are used on all Voice over IP and mobile telephone calls and essentially all long-distance calls.