Note: The Echo is produced when one of the users in multiparty call is using a separate device for speakerphone for audio output and a microphone phone for audio input or speakerphone with an inbuilt microphone which does not support AEC (acoustic echo cancellation).
User 2 does not hear the echo from their end.User 2 is using a separate device for speakerphone and microphone (Non-Composite device) where speakerphone does not have an AEC.User 1 is using a headset (composite device) as an audio device.The most important take away here is that echo is not produced on the side where it is heard.Įxample of a conversation with no acoustic echo cancellation (AEC): The effects of this can be distracting and lead to poor user experience, especially in multiparty calls. Echo is when your voice is retransmitted back to you by User B. Let’s imagine you are UserA and in a conversation with UserB. Users hear an echo when making a call using Skype for Business either as a published app or published desktop with HDX RealTime Optimization Pack.
