Streaming Ambisonic Ambient Beds?

When I check Streaming on a sound that Is Ambisonics (_ambix, b-format .wav), UE4 (4.19) immediately crashes.

Ambient beds would seem to be a perfect choice for ambisonic source. That said, ambient beds tend to be long and would benefit from being streamed… is this a bug, is there something I need to setup or is it just not possible to stream ambisonic source due to some technical/processing restraint?

Also, do you have a workflow or set of blueprints that you use to handle going in and out of different areas that have 2D ambient beds (now 2D ambisonic ambient beds thanks to 4.19)?

Thanks!

[2018.04.16-23.40.48:642][126]LogSlate: FSceneViewport::OnFocusLost() reason 0
[2018.04.16-23.41.16:187][488]LogAudioDerivedData: Display: Building compressed audio format OPUS wave voice_o1_ambix…
[2018.04.16-23.41.16:194][488]LogAudioDerivedData: Cooking 4 channels for: SoundWave /Game/Audio/Tests/AmbisonicTests/Resonance_Audio/voice_o1_ambix.voice_o1_ambix
[2018.04.16-23.41.16:195][488]LogWindows: Windows GetLastError: The operation completed successfully. (0)
[2018.04.16-23.41.18:134][488]LogWindows: Error: === Critical error: ===
[2018.04.16-23.41.18:134][488]LogWindows: Error:
[2018.04.16-23.41.18:134][488]LogWindows: Error: Assertion failed: (Index >= 0) & (Index < ArrayNum) [File:D:\Build++UE4+Release-4.19+Compile\Sync\Engine\Source\Runtime\Core\Public\Containers/Array.h] [Line: 610]
[2018.04.16-23.41.18:134][488]LogWindows: Error: Array index out of bounds: 0 from an array of size 0
[2018.04.16-23.41.18:134][488]LogWindows: Error:
[2018.04.16-23.41.18:134][488]LogWindows: Error:
[2018.04.16-23.41.18:134][488]LogWindows: Error: [Callstack] 0x00000000EE384008 KERNELBASE.dll!UnknownFunction ]
[2018.04.16-23.41.18:134][488]LogWindows: Error: [Callstack] 0x00000000BFFC7884 UE4Editor-ApplicationCore.dll!UnknownFunction ]
[2018.04.16-23.41.18:135][488]LogWindows: Error: [Callstack] 0x00000000BB176D9B UE4Editor-Core.dll!UnknownFunction ]
[2018.04.16-23.41.18:135][488]LogWindows: Error: [Callstack] 0x00000000BB0B1939 UE4Editor-Core.dll!UnknownFunction ]
[2018.04.16-23.41.18:135][488]LogWindows: Error: [Callstack] 0x00000000A386B32A UE4Editor-AudioFormatOpus.dll!UnknownFunction ]
[2018.04.16-23.41.18:135][488]LogWindows: Error: [Callstack] 0x00000000AF2ED1BF UE4Editor-Engine.dll!UnknownFunction ]
[2018.04.16-23.41.18:135][488]LogWindows: Error: [Callstack] 0x00000000AF2E877E UE4Editor-Engine.dll!UnknownFunction ]
[2018.04.16-23.41.18:135][488]LogWindows: Error: [Callstack] 0x000000009F0C813A UE4Editor-DerivedDataCache.dll!UnknownFunction ]
[2018.04.16-23.41.18:135][488]LogWindows: Error: [Callstack] 0x000000009F0C72E4 UE4Editor-DerivedDataCache.dll!UnknownFunction ]
[2018.04.16-23.41.18:135][488]LogWindows: Error: [Callstack] 0x000000009F0E2DE1 UE4Editor-DerivedDataCache.dll!UnknownFunction ]
[2018.04.16-23.41.18:135][488]LogWindows: Error: [Callstack] 0x000000009F0D071E UE4Editor-DerivedDataCache.dll!UnknownFunction ]
[2018.04.16-23.41.18:135][488]LogWindows: Error: [Callstack] 0x00000000AFFF1817 UE4Editor-Engine.dll!UnknownFunction ]
[2018.04.16-23.41.18:135][488]LogWindows: Error: [Callstack] 0x00000000AF2E894A UE4Editor-Engine.dll!UnknownFunction ]
[2018.04.16-23.41.18:135][488]LogWindows: Error: [Callstack] 0x00000000AF2F7528 UE4Editor-Engine.dll!UnknownFunction ]
[2018.04.16-23.41.18:135][488]LogWindows: Error: [Callstack] 0x00000000AF2E908F UE4Editor-Engine.dll!UnknownFunction ]
[2018.04.16-23.41.18:135][488]LogWindows: Error: [Callstack] 0x00000000AF2E9219 UE4Editor-Engine.dll!UnknownFunction ]
[2018.04.16-23.41.18:135][488]LogWindows: Error: [Callstack] 0x00000000B0028221 UE4Editor-Engine.dll!UnknownFunction ]
[2018.04.16-23.41.18:135][488]LogWindows: Error: [Callstack] 0x00000000B000EF30 UE4Editor-Engine.dll!UnknownFunction ]
[2018.04.16-23.41.18:135][488]LogWindows: Error: [Callstack] 0x00000000B4256D92 UE4Editor-CoreUObject.dll!UnknownFunction ]
[2018.04.16-23.41.18:135][488]LogWindows: Error: [Callstack] 0x00000000ACD8C6A6 UE4Editor-PropertyEditor.dll!UnknownFunction ]
[2018.04.16-23.41.18:135][488]LogWindows: Error: [Callstack] 0x00000000ACD81871 UE4Editor-PropertyEditor.dll!UnknownFunction ]
[2018.04.16-23.41.18:135][488]LogWindows: Error: [Callstack] 0x00000000ACD81DF9 UE4Editor-PropertyEditor.dll!UnknownFunction ]
[2018.04.16-23.41.18:135][488]LogWindows: Error: [Callstack] 0x00000000ACDC2F34 UE4Editor-PropertyEditor.dll!UnknownFunction ]
[2018.04.16-23.41.18:135][488]LogWindows: Error: [Callstack] 0x00000000ACE706CC UE4Editor-PropertyEditor.dll!UnknownFunction ]
[2018.04.16-23.41.18:135][488]LogWindows: Error: [Callstack] 0x00000000ACE5506D UE4Editor-PropertyEditor.dll!UnknownFunction ]
[2018.04.16-23.41.18:135][488]LogWindows: Error: [Callstack] 0x00000000ACE5811D UE4Editor-PropertyEditor.dll!UnknownFunction ]
[2018.04.16-23.41.18:135][488]LogWindows: Error: [Callstack] 0x00000000BABD1025 UE4Editor-Slate.dll!UnknownFunction ]
[2018.04.16-23.41.18:135][488]LogWindows: Error: [Callstack] 0x00000000BABB1BB3 UE4Editor-Slate.dll!UnknownFunction ]
[2018.04.16-23.41.18:135][488]LogWindows: Error: [Callstack] 0x00000000BA9D485C UE4Editor-Slate.dll!UnknownFunction ]
[2018.04.16-23.41.18:135][488]LogWindows: Error: [Callstack] 0x00000000BA9A7D75 UE4Editor-Slate.dll!UnknownFunction ]
[2018.04.16-23.41.18:135][488]LogWindows: Error: [Callstack] 0x00000000BAA3F617 UE4Editor-Slate.dll!UnknownFunction ]
[2018.04.16-23.41.18:135][488]LogWindows: Error: [Callstack] 0x00000000BAA27D0D UE4Editor-Slate.dll!UnknownFunction ]
[2018.04.16-23.41.18:135][488]LogWindows: Error: [Callstack] 0x00000000BAA1B3E2 UE4Editor-Slate.dll!UnknownFunction ]
[2018.04.16-23.41.18:135][488]LogWindows: Error: [Callstack] 0x00000000BFFBE69B UE4Editor-ApplicationCore.dll!UnknownFunction ]
[2018.04.16-23.41.18:135][488]LogWindows: Error: [Callstack] 0x00000000BFFB1B78 UE4Editor-ApplicationCore.dll!UnknownFunction ]
[2018.04.16-23.41.18:135][488]LogWindows: Error: [Callstack] 0x00000000BFFC052C UE4Editor-ApplicationCore.dll!UnknownFunction ]
[2018.04.16-23.41.18:135][488]LogWindows: Error: [Callstack] 0x00000000BFFAD679 UE4Editor-ApplicationCore.dll!UnknownFunction ]
[2018.04.16-23.41.18:135][488]LogWindows: Error: [Callstack] 0x00000000EFB0B85D USER32.dll!UnknownFunction ]
[2018.04.16-23.41.18:135][488]LogWindows: Error: [Callstack] 0x00000000EFB0B1EF USER32.dll!UnknownFunction ]
[2018.04.16-23.41.18:135][488]LogWindows: Error: [Callstack] 0x00000000BFFC1666 UE4Editor-ApplicationCore.dll!UnknownFunction ]
[2018.04.16-23.41.18:135][488]LogWindows: Error: [Callstack] 0x00000000AF315475 UE4Editor.exe!UnknownFunction ]
[2018.04.16-23.41.18:135][488]LogWindows: Error: [Callstack] 0x00000000AF326BD0 UE4Editor.exe!UnknownFunction ]
[2018.04.16-23.41.18:135][488]LogWindows: Error: [Callstack] 0x00000000AF326C4A UE4Editor.exe!UnknownFunction ]
[2018.04.16-23.41.18:135][488]LogWindows: Error: [Callstack] 0x00000000AF334149 UE4Editor.exe!UnknownFunction ]
[2018.04.16-23.41.18:135][488]LogWindows: Error: [Callstack] 0x00000000AF335B57 UE4Editor.exe!UnknownFunction ]
[2018.04.16-23.41.18:135][488]LogWindows: Error: [Callstack] 0x00000000F0621FE4 KERNEL32.DLL!UnknownFunction ]
[2018.04.16-23.41.18:135][488]LogWindows: Error: [Callstack] 0x00000000F1C4F061 ntdll.dll!UnknownFunction ]
[2018.04.16-23.41.18:135][488]LogWindows: Error: [Callstack] 0x00000000F1C4F061 ntdll.dll!UnknownFunction ]
[2018.04.16-23.41.18:135][488]LogWindows: Error:
[2018.04.16-23.41.18:152][488]LogExit: Executing StaticShutdownAfterError
[2018.04.16-23.41.18:158][488]LogWindows: FPlatformMisc::RequestExit(1)
[2018.04.16-23.41.18:159][488]Log file closed, 04/16/18 16:41:18

When I check Streaming on a sound that Is Ambisonics (_ambix, b-format .wav), UE4 (4.19) immediately crashes.

Ambient beds would seem to be a perfect choice for ambisonic source. That said, ambient beds tend to be long and would benefit from being streamed… is this a bug, is there something I need to setup or is it just not possible to stream ambisonic source due to some technical/processing restraint?

@zzzzlh is this a way of bumping my original thread? i think you could have just replied with a +1 or something. are you also experiencing this?.. with 1 post, it makes me think you are a bot.