eastern-cyan•3mo ago

Issue with our Multilingual AI (Spanish)

The voice is sounding very slow, choppy, and glitchy — it starts fine, then suddenly breaks into unnatural pauses and awkward delivery. We're using: - Deepgram Nova-3 (multilingual) - GPT-4.1 Mini - ElevenLabs multilingual v2 voice - Auto Mode was tested both on and off This only seems to happen with our Spanish AI Could someone from the team please have a look at it when possible? The assistant ID is: 666e393e-2207-4821-8173-818c64b4fca4. Call ID Example: e862c360-99b6-4c7a-b56a-08bbcd0978c6 Thanks so much in advance!

6 Replies

Vapi Support Bot•3mo ago

To address the slow, choppy, and glitchy Spanish voice, try fine-tuning your assistant's speech configuration—especially the "Start Speaking Plan" and "Stop Speaking Plan" parameters. For Spanish, set the smart endpointing mode to "Vapi" and use the following example to reduce unnatural pauses:

"stopSpeakingPlan": {
  "numWords": 0,
  "voiceSeconds": 0.2,
  "backoffSeconds": 1
}

"stopSpeakingPlan": {
  "numWords": 0,
  "voiceSeconds": 0.2,
  "backoffSeconds": 1
}

Adjust these values via the API and test for smoother delivery. This approach is recommended for non-English assistants to improve naturalness and reduce choppiness.
Reference: Vapi Speech Configuration Docs Source: - Vapi Speech Configuration Docs

⤵️ Mention @Vapi Support Bot for follow-ups 🐥

provincial-silver•3mo ago

Looking into it

eastern-cyanOP•3mo ago

Thank you! Hi @Kings_big💫, any updates?

provincial-silver•3mo ago

No update yet please

eastern-cyanOP•3mo ago

Ok, thank you

Sahil•3mo ago

Hey Ella Edwards looking into it. Hey there, could you please share a few more call IDs that have a similar issue? Additionally, I would appreciate it if you could provide an original audio recording where the pronunciation is correct. I'll take this information to the 11labs team and request them to review their logs and offer their support on this matter.

Issue with our Multilingual AI (Spanish)

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