Question Web RTC / Audio Stream Track 3D sound effect not work

I try to apply 3d sound effect with received AudioStreamTrack.

So, I used "AudioSourceExtension SetTrack" method. like this.

Code (CSharp):

1. if (e.Track is AudioStreamTrack audioTrack)
2. {
3.     var audioSource = resourceObjects[idx].GetComponent<AudioSource>();
4.  
5.     audioSource.SetTrack(audioTrack);
6.     audioSource.loop = true;
7.     audioSource.Play();
8. }

and, in the audioSource, set Spatial Blend option to 1.

then, I had listened the received sound. It seems like to work that applied 3d sound effect. but, the sound effect only about distance effect. not work about direction.

I want to implement fully 3d sound effect.
How can i solve this problem?

 

Yes.

Let me show you how to reproduce my problem with that sample.

First, Set the audio source input and outputs position close to main camera that contains audio listener.

Then, Active Spatial Blend option to 1 and Min distance option set enough to listen at the audio sources.
** I recommend set doppler level option to 0.

Then, Execute unity, click the start button. and go to Scene tap, move the "AudioSource - Input" around main camera. Maybe you can feel the 3d effect about distance and direction. If you are listening with earphones or headphones.

Then, Click call button and move the "AudioSource - Output" as before. Probably, You will only feel the effect on distance and not the effect on direction.

This is my problem!
** if you compare again, click pause button and active loopback.

Thanks

 

Thanks for your reply.

When I checked the audio codec, it was already using the Opus codec.

So far I'm still trying to find a solution to my problem.

This is one of the methods I tried.
I received audio data through the data channel, made an audio clip in the main thread, put the data in the clip, and played it with loop.

Then, it worked just as I thought it would.

In my opinion, the point of this problem is that the spatial effect is applied well to the data of the audio track, as the sound changes according to distance and the Doppler effect is applied.
But the audio listener hear it like mono, not stereo.

** the default speaker mode option to stereo in the project settings.