This article doesn't mention that this is a phenomenon than often occurs in telecommunications transmission systems. This is commonly experienced as echo on a long distance telephone calls and similar systems where speech is picked up or reflected at the far end of the call and fed back to the speaker. Depending on the volume and the delay, this can be experienced as feedback or cause the caller to b totally confused and silenced. Suppression of this phenomenon is an important factor in the quality of audio telecommunications. - Cameron Dewe (talk) 08:08, 24 July 2025 (UTC)