Audio Crash on OnAudioFilterRead()

Hello,
I'm trying to sample the audio stream to, eventually, postprocess it. However, for now I'm starting with a very small set-up.

Using 2018.3.13f1, building a Linux player (x86_64) on Ubuntu 19.04. The scene contains:

• Directional Light
• Sphere + Audio Source (playing a wav file in a loop)
• Main Camera + Audio Listener + Test script

The Test.cs looks like:

Code (CSharp):

1. using UnityEngine;
2. using System;
3.  
4. public class Test : MonoBehaviour
5. {
6.  
7.     void Update()
8.     {
9.      
10.     }
11.     void OnAudioFilterRead(float[] data, int channels)
12.     {
13.         Byte[] t = new Byte[2];
14.     }
15. }

Running the player (

./audio.x86_64 -logfile

) I'll get:

Begin MonoManager ReloadAssembly
- Completed reload, in 0,194 seconds
Default vsync count 1
requesting resize 1024 x 600
resizing window to 1024 x 600
Desktop is 1600 x 900 @ 60 Hz
UnloadTime: 1,812000 ms
Stack overflow in unmanaged: IP: 0x7fb2a8e5a903, fault addr: 0x7fb258014ff8
Stack overflow in unmanaged: IP: 0x7fb2a8f0c5ce, fault addr: 0x7fb258014f58
Stack overflow in unmanaged: IP: 0x7fb2a8f5223b, fault addr: 0x7fb258012eb8
Stack overflow in unmanaged: IP: 0x7fb2a8fb8603, fault addr: 0x7fb258011ff8
Stack overflow in unmanaged: IP: 0x7fb2a8fc3c87, fault addr: 0x7fb258010948
Stack overflow in unmanaged: IP: 0x7fb2a8fc3c87, fault addr: 0x7fb25800fb88
StackOverflowException: The requested operation caused a stack overflow.
at (wrapper managed-to-native) System.Object.__icall_wrapper_ves_icall_array_new_specific(intptr,int)
at Test.OnAudioFilterRead (System.Single[] data, System.Int32 channels) [0x00001] in /home/jsantand/Code/video/inno/VR/new/Unity/TestAudio2/Assets/Scripts/Test.cs:13
UnityEngine.DebugLogHandler:Internal_LogException(Exception, Object)
UnityEngine.DebugLogHandler:LogException(Exception, Object)
UnityEngine.Logger:LogException(Exception, Object)
UnityEngine.Debug:LogException(Exception)
UnityEngine.UnhandledExceptionHandler:<RegisterUECatcher>m__0(Object, UnhandledExceptionEventArgs)
System.Object:__icall_wrapper_ves_icall_array_new_specific(IntPtr, Int32)
Test:OnAudioFilterRead(Single[], Int32) (at /home/jsantand/Code/video/inno/VR/new/Unity/TestAudio2/Assets/Scripts/Test.cs:13)
(Filename: /home/jsantand/Code/video/inno/VR/new/Unity/TestAudio2/Assets/Scripts/Test.cs Line: 13)

and the player will just freeze.

The code above is a minimal example that reproduces the problem. It seems to hint is something related to memory allocation, as if I do the memory allocation elsewhere, the problem does not appear.

A similar thing happens with Unity 2019.1.0f2

Please advice.

Thanks in advance and best regards

Julian