Error in transcript/audio (shorter than twilio)

worthy-rose · 2025-05-07T13:23:32.142Z

Hello, this is a pretty strange issue: https://dashboard.vapi.ai/calls/2e9ab29e-64e1-4a61-9c0b-2d4a1c1dcb2c as you can see, the transfcript and audio ''compact'' the real one, that is more than2 minutes (as you correctly report), but there is no agent voice or silence etween customer thanks

V

Vapi Support BotAPP•5/7/25, 1:25 PM

This issue is likely related to incorrectly calibrated Voice Activity Detection (VAD) settings. VAD is designed to detect when someone starts speaking, but if not properly configured, it might miss sections of audio or fail to capture silence between speakers.

Try adjusting your VAD settings with:

// Increase sensitivity to capture more audio including silence
const callOptions = {
  silenceTimeoutSeconds: 5, // Increase from default
  responseDelaySeconds: 0.5 // Add slight delay to capture more context
}

// Increase sensitivity to capture more audio including silence
const callOptions = {
  silenceTimeoutSeconds: 5, // Increase from default
  responseDelaySeconds: 0.5 // Add slight delay to capture more context
}

// Increase sensitivity to capture more audio including silence
const callOptions = {
  silenceTimeoutSeconds: 5, // Increase from default
  responseDelaySeconds: 0.5 // Add slight delay to capture more context
}

// Increase sensitivity to capture more audio including silence
const callOptions = {
  silenceTimeoutSeconds: 5, // Increase from default
  responseDelaySeconds: 0.5 // Add slight delay to capture more context
}

This should help capture more complete audio including agent voice and silence between speakers.

Source:

Discord discussion about VAD settings

⤵️ Mention @Vapi Support Bot for follow-ups 🐥

V

Vapi Support BotAPP•5/7/25, 1:25 PM

This issue is likely related to incorrectly calibrated Voice Activity Detection (VAD) settings. VAD is designed to detect when someone starts speaking, but if not properly configured, it might miss sections of audio or fail to capture silence between speakers.

Try adjusting your VAD settings with:

// Increase sensitivity to capture more audio including silence
const callOptions = {
  silenceTimeoutSeconds: 5, // Increase from default
  responseDelaySeconds: 0.5 // Add slight delay to capture more context
}

// Increase sensitivity to capture more audio including silence
const callOptions = {
  silenceTimeoutSeconds: 5, // Increase from default
  responseDelaySeconds: 0.5 // Add slight delay to capture more context
}

// Increase sensitivity to capture more audio including silence
const callOptions = {
  silenceTimeoutSeconds: 5, // Increase from default
  responseDelaySeconds: 0.5 // Add slight delay to capture more context
}

// Increase sensitivity to capture more audio including silence
const callOptions = {
  silenceTimeoutSeconds: 5, // Increase from default
  responseDelaySeconds: 0.5 // Add slight delay to capture more context
}

This should help capture more complete audio including agent voice and silence between speakers.

Source:

Discord discussion about VAD settings

⤵️ Mention @Vapi Support Bot for follow-ups 🐥

K

KyleAPP•5/8/25, 1:51 AM

hey @mnvora, can you share more call Ids similar to this?

Ccomprehensive-tomato hey @mnvora, can you share more call Ids similar to this?

E

efficient-indigo•5/8/25, 7:08 AM

hello @Shubham Bajaj, @mmvora and I work at the same company. Here are two call ids: e15c9fa2-8be6-47a5-9c09-074a963839c1, 2262d97b-5adb-4f99-b33e-60f163d61d1d

E

efficient-indigo•5/8/25, 7:39 AM

W

worthy-roseOP•5/8/25, 11:40 AM

hello, we noticed that it often happens with this carrier: RADIOMOVIL DIPSA S.A. DE C.V. (Telcel)

W

worthy-roseOP•5/8/25, 12:04 PM

(not in every calls of this carrier)

D

dangerous-fuchsia•5/8/25, 11:30 PM

Hey, I looked into your shared call ID. It’s because of the drift coming from the telephony. Audio comes out of order and same is visible in the call recording as well.

D

dangerous-fuchsia•5/8/25, 11:30 PM

Can you check with your telephony regarding this?

Error in transcript/audio (shorter than twilio)

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