![]() In such hands-free systems, stereophonic acoustic echo cancellers are absolutely necessary for full-duplex communication. Participants can more easily discern who is talking at the other end by means of the spatial aspect of the audio output. The stereophonic (Stereo) acoustic echo canceller (SAEC) software suppresses the echo returned to the transmission room to enable undisturbed communication between the rooms. In applications such as teleconferencing and hands-free telephony, stereophonic systems provide telepresence compared to monaural systems to users by enabling listeners to localize conference participants in meetings where multiple parties might be conversing at the same time.Ī high-end stereo teleconferencing system provides a more “natural” listening experience between conferees than monophonic systems. ![]() This disturbance, caused by echo, increases in severity with the propagation delay of the channel. In the case of stereophonic audio transmission, the acoustic echo cancellation problem is more difficult to solve because of the necessity to uniquely identify two acoustic paths. In order to provide a more realistic conversational experience, two-channel audio is necessary. Teleconferencing systems require the use of acoustic echo cancelers (AECs) to reduce echoes that result from coupling between the loudspeaker and microphone. Stereophonic (Stereo) acoustic echo cancelling (SAEC)
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