Is there any Noise Cancellation Feature in Vivox?

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1

Hi, I got the users feedback that they are getting background noise while having Voice Chat in game.
there is any way to reduce the Background Noise.

Unity Version - 2021.2.7f1
Vivox Version - 15.1.170000
Platform - IOS

2

Hi, what you are describing is adjustments to our voice activity detection settings. I’d recommend checking out this article Vivox: How to: Access VAD settings.

3

Can you share any code snippet because I not getting any lead from the link you shared.

4

Take a look at the Logout method in LoginSession.cs file in your Vivox package. You’ll see a new request of type vx_req_account_logout_t being created, filled in, and then the request issued. You’ll want to add a new method to the LoginSession class to handle setting the VAD. In that method, you’ll be creating a new vx_req_aux_set_vad_properties_t object, setting the values to what you want based on the FAQ article, and then issuing the request.

Here’s a quick example to set the Auto VAD, which I’d try first. For more information about the Auto VAD, please see the article I linked previously.

public void SetAutoVad()
{
    if (_state == LoginState.LoggedIn)
    {
        var request = new vx_req_aux_set_vad_properties_t();
        request.account_handle = _accountHandle;
        request.vad_auto = 1;
        VxClient.Instance.BeginIssueRequest(request, null);
    }
}
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5

Thank you, I will try and let you know the result

6

@dylan_unity3d Result from Testing

When ‘Mic Sensitivity’ values are reduces (1-15) & increased ‘Noise Floor’ values (15000-20000) - the background noise appeared reduced and only audible when user speaks

  • With default values - the background noise is audible at all times and even when user is not speaking

  • Same is observed with higher ‘Mic Sensitivity’ values & lower ‘Noise Floor’ values

Also a robotic voice can be heard from other users in space

7

Hello, it sounds like you have found values that work for you.

You can also try with request.vad_auto? This mode take a few seconds to adjust as it gathers data from the audio stream. This allows for it to dynamically adjust itself for different users rather than using a fixed value for all users.

Does this resolve your issue?

8

Let me put in this way :-

I am going with request.vad_auto = 0 and allow users to set Mic Sensitivity and Noise floor.

Noise Occurs (Default Value) - is coming without user speaks.
Noise Occurs (Some Settings) - is coming when user speaks.

Also notice Robotic Voice of other users some times.

9

That sounds fine. The robotic voice should not be related to the VAD. I’ll close out this thread.

1 Like