Understanding echo cancellation model

1. How does echo cancellation work?
2. What is Echo Canceller explain its types?
3. What is echo noise cancellation?

How does echo cancellation work?

Echo cancellers operate by first analyzing the incoming voice stream and simultaneously monitoring the return voice stream before it's being transmitted. If the echo is detected, the echo cancellation engine subtracts it from the transmitted or received audio signal.

What is Echo Canceller explain its types?

A Digital Echo Canceller is a four-port device that supports bidirectional voice traffic between the two ends of a connection. The two ends of the connection are referred to as the far end and the near end. Voice signals from the far end are carried to the near end on the receive path.

What is echo noise cancellation?

What is Echo Cancellation? Echo cancellation technology monitors the incoming and outgoing streams of a phone conversation. If it determines that the outgoing stream is the same as the incoming (an echo), the noise cancellation engine subtracts that part of the outgoing stream.