Avatar responds with text only, no voice output in Unity/VR

Hello,

I am experiencing an issue with Convai in Unity.

The avatar works correctly in the Convai Playground. It receives my input and responds with both text and voice as expected.

However, in my Unity project (including VR on Meta Quest), the avatar only generates text responses and does not play any voice/audio output. The conversation text appears correctly, but there is no speech from the character.

My setup:

  • Unity 6.3
  • Convai SDK
  • Meta XR All-in-One SDK
  • VR application running on Meta Quest

Could you please help me identify what might be causing the voice output to work in the Playground but not in Unity or on the Quest device?

Are there any specific audio source, TTS, microphone, permissions, or SDK settings that I should verify?

Thank you.

Hello,

Which version of the Convai SDK are you currently using?

Could you also please share your Unity Editor logs so we can review the issue in more detail?

Hello again,

I am using Convai SDK version 4.1.0 in Unity with Meta Quest VR.

I am experiencing an issue where the avatar sometimes speaks and sometimes does not. The problem is much more noticeable inside VR. The avatar receives the input correctly, generates a response, and the response text appears on screen, but the voice is not played.

In other words, the character understands the input and responds with text, but there is no audio output for the response. Occasionally it works, but most of the time it does not speak.

The same character works correctly in the Convai Playground, where both text and voice responses are generated. The issue only occurs in my Unity project and on the Quest device.

Could you please help me identify what might be causing this intermittent TTS/audio issue in VR? Are there any specific settings, permissions, audio source configurations, or known issues with Convai SDK 4.1.0 that I should check?

Thank you.

Please update the SDK to the latest version and share the Unity Editor logs with us so we can review the issue in more detail.

Hi,

As far as I can see, version 4.1.0 is the latest version available to me.

I uploaded my project to VR, but the performance is very poor. It lags a lot, especially when using Arabic. In Free Hands Mode, the experience is quite difficult because every time I speak, it takes a long time to generate a response, and the whole environment/UI freezes or becomes unresponsive during that time.

Is there any solution or optimization for this issue?

Also, if there is a newer update available than version 4.1.0, I would appreciate it if you could let me know.

Thank you.

The performance issue does not appear to be directly related to Convai.

Could you please clarify which scene you are testing in?
Are you running this as PC VR or as a standalone VR build?

From what you described, this seems more likely to be related to your project setup or overall VR performance. We tested on our side and were not able to reproduce this issue, and we have not received similar reports from other users so far.

Also, version 4.1.0 is not the latest version. Please update to the latest SDK version and test again. Install the Convai Unity SDK | Convai Documentation