What is backchanneling?
Backchanneling is the short verbal or non-verbal signals a listener gives while someone else is talking – “mm-hmm,” “yeah,” a nod – to show they’re engaged, without taking the conversational turn.
What is an example of backchanneling?
A caller says “so then I called support, and…” and the agent responds “mm-hmm” without interrupting, letting the caller keep talking.
How does backchanneling work?
It relies on the same turn-taking cues as normal speech – timing, intonation, brief pauses – but a backchannel is deliberately short and low-commitment, signaling “keep going” rather than “my turn now.”
How does ai-coustics address backchanneling?
A voice agent’s turn-taking and endpointing models need to tell a backchannel apart from a real turn attempt, so a caller’s “mm-hmm” doesn’t get misread as them finishing their sentence, or scored as interfering speech that could trigger a false barge-in.
