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  • 1.  Voice bots - background noise

    Posted 03-02-2026 04:49

    Hi all,

    Have any voice bot customers had issues recently with the sensitivity of the bot to background noise? Right now, we're having huge issues with the way that the bot is processing any kind of sound, even when there's a prominent voice in the foreground. We're testing across three different orgs and if a chair squeaks just before someone speaks, the bot is processing that sound as the utterance and immediately hits a No Match.

    We're getting so many problems with this right now. There's a setting under User Input for Speech Detection Sensitivity, but this is specific to Nuance Recognizer as a Service., not the Genesys bot.

    I largely use the V3 engine for Speech to Text, my colleague is using V2 and seeing the same. So I don't think the issue is specific to an engine 

    If anyone has this too, I'd be interested to hear about it. I'm about to raise a ticket with Support anyway so if there's a resolution to this, I'll make sure this thread is updated.


    #Architect

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    David Hawken
    Professional Services Engineer
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  • 2.  RE: Voice bots - background noise

    Posted 18 days ago

    Would I be able to get some input from Genesys on this please? Our support ticket has come back and simply said "nothing you can do, raise an idea". But there's a clear issue we're seeing in the voice bots where the bot is processing ANY sound which is creating a big problem with slot matching. 

    If any of the product managers would have some time to help, we'd really appreciate it! @Mitchell Mason not sure if this is still your area or not

    Thanks



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    David Hawken
    Professional Services Engineer
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  • 3.  RE: Voice bots - background noise

    Posted 17 days ago

    Thanks for reaching out, if you have any audio recordings where this is happening, it would be helpful if you could forward them to me so we can work with the model providers to try to improve. I'd suggest sticking with v3 as its the strategic direction for model choices. 

    They do handle background noise, its just not by the same type of microphone sensitivity, so clearly there are still a few gaps that we can try to solve with real examples. 



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    Mitchell Mason
    Principal Product Manager, Virtual Agent
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  • 4.  RE: Voice bots - background noise

    Posted 16 days ago

    Hi David,

    We've seen similar behavior recently with Genesys voice bots interpreting short background noises as utterances, especially in environments with intermittent non-speech audio (chair movement, mic bumps, breath noise, etc.).

    A few observations from our side:

    • The Genesys bot does not expose a tunable speech sensitivity setting like Nuance RaaS, so mitigation options are limited at the bot layer.
    • This is not engine-specific - we've observed the same behavior on both STT v2 and v3, which aligns with your findings.
    • When a brief noise is interpreted as an utterance, it often triggers an early end-of-utterance, leading directly to No Match before the actual speech begins.

    Some partial mitigations that may help reduce impact:

    • Add a short prompt delay / barge-in handling to avoid immediate intent evaluation.
    • Use reprompt logic tolerant of first No Match events rather than failing fast.
    • Where possible, validate the audio path and mic noise levels, as excessive gain can worsen the issue.

    Unfortunately, at this time there's no configuration-level fix, and improvements will depend on model tuning, so sharing real audio samples (as Mitchell suggested) is the best path forward.

    Thanks for raising this - it's definitely a real-world gap affecting production bots.



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    Cesar Padilla
    INDRA COLOMBIA
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  • 5.  RE: Voice bots - background noise

    Posted 16 days ago

    Thanks for replying, Cesar. I'm hoping we can help Genesys identify this issue, it definitely feels like it's got worse in the last few months. 

    I've got some examples to send over to Mitch, so hopefully we can get the ball rolling



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    David Hawken
    Professional Services Engineer
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