Echo canceller is to eliminate the noise generated by air microphone and speaker return generated by the path through the sonic disturbances, so as to eliminate the echo effect. AEC-980 echo canceller an overview of ACE-980 is an echo canceller applied to echo teleconferencing, video conferencing systems eliminator, it has a strong echo cancellation feature, you can pass back to the other side contains speak for themselves All echo cancellation. The need to eliminate echo occasion Description: Echo is an audio conferencing system common problems. When the microphone picks up the audio signal from the speaker will appear in the local audio loopback, and send it back to the other participants. When other participants speak, he (she) can hear your own echo. For example: Alice and Bob are on the phone or in a meeting. Alice speak into the microphone. Bob played through the speaker to hear Alice's voice. Bob's microphone also collect and transmit Alice's voice. Alice heard the echo of his own voice, but round-trip transmission time due to a slight delay. If you are using a very sensitive microphone or speaker volume is large, but also between the microphone and speaker, or from very close, it may trigger or exacerbate echo. In addition to interference, which may prevent normal conversation between conference participants. The echo canceller wiring instructions: 1, MIC-INPUT jack plug directly into the microphone, which has MIC-POWER, some microphones can also be required to provide power. (Emphasis: This jack can be directly connected to the microphone, the microphone is not connected through a signal amplification circuit, the signal amplitude range 5-30mV, beyond this range does not work.) 2, MIC-OUT output to the computer's microphone MIC jack. Through this signal is transmitted to the local voices to different places across the network. 3, LINE-IN The interface to the computer's headphone jack, remote voice signal reception. (Emphasis: This can not be directly connected to the microphone jack, you need to connect a microphone through a signal amplification circuit, the signal amplitude range 200-2000mV, beyond this range does not work.) 4, LINE-OUT this interface amplifier connected to a local machine, From speakers to listen to the voices in different places. Guangzhou Guang Xin Electronic Technology Co., Ltd. www.guangxin.cc Feedback Suppressor |?? echo cancellation | howling suppressor