UWP app crashes when plugging/unplugging earphones

Hey guys, I've run into an issue with our UWP app where plugging or unplugging a headset or earphones can cause the application to crash. The call stack seems to point out to a problem with Unity.

0 UnityPlayer!SoundManager::GetHandle soundmanager.cpp

1 UnityPlayer!SampleClip::LoadBaseSound audioclip.cpp

2 UnityPlayer!SampleClip::LoadAudioData audioclip.cpp

3 UnityPlayer!AudioSource:: Play audiosource.cpp

4 UnityPlayer!AudioSource_CUSTOM_Play audiobindings.gen.cpp


Has anyone run into this issue before? I'm using Unity 5.6.2f1 and building for Universal 10 using UWP SDK 10.0.14393.0.

 

I've tried to repro this bug in a new Unity project and managed to do it but I don't think it's related to Unity.

Someone added some code in our project to deal with this issue : https://issuetracker.unity3d.com/is...audiosettings-dot-onaudioconfigurationchanged

To circumvent this issue, we used the Windows.Media.Devices namespace and subscribed to the MediaDevice.DefaultAudioRenderDeviceChanged event.

Code (CSharp):

1.  
2. using System;
3. using UnityEngine;
4.  
5. #if NETFX_CORE
6. using Windows.Media.Devices;
7. using Windows.Devices.Enumeration;
8. #endif
9.  
10. public class AudioCrashScript : MonoBehaviour
11. {
12. #if NETFX_CORE
13.     private string _deviceId = string.Empty;
14.  
15.     private void Awake()
16.     {
17.         MediaDevice.DefaultAudioRenderDeviceChanged += OnDefaultSoundPlaybackDeviceChanged;
18.     }
19.  
20.     private async void OnDefaultSoundPlaybackDeviceChanged(object sender, DefaultAudioRenderDeviceChangedEventArgs args)
21.     {
22.         DeviceInformation deviceInfo = await DeviceInformation.CreateFromIdAsync(args.Id);
23.         if (deviceInfo.Id == _deviceId)
24.             return;
25.  
26.         _deviceId = deviceInfo.Id;
27.  
28.         UnityEngine.WSA.Application.InvokeOnAppThread(() =>
29.         {
30.             AudioConfiguration config = AudioSettings.GetConfiguration();
31.             AudioSettings.Reset(config);
32.         }, true);
33.     }
34. #endif
35. }
36.  

This code seems to crash the Master UWP app on some machines. Now, if I add a try/catch to the CreateFromIdAsync method, I can prevent the crash.

My problem now is that when I unplug/plug headphones, I don't have any sound. I'm using Unity 5.6.2f1. Is it possible that the issue I linked in the Unity Issue Tracker is not fixed even though it's marked as fixed? If sound was able to play as expected when using headphones, I would just discard all the code that was added to circumvent the issue.

 

Disregard all that. I removed all the code that was causing problems and did not call AudioSettings.Reset(config); when changing audio playback device and everything seems to be working now. Sorry about that waste of time -_-