[Unity+Wwise] Crash when playing spatialized vorbis-encoded sound #503
Description
System Information
- Steam Audio version: 4.7.0
- Unity version: 2022.3.50f1
- Wwise version: 2024.1.9.8920
- Operating System and version: Windows 11 Pro 25H2
- CPU architecture: 13th Gen Intel(R) Core(TM) i7-13700KF (3.40 GHz)
Issue Description
I am experiencing a crash when playing a sound using the Steam Audio Spatializer effect in Wwise.
The crash occurs specifically in CAkEmitter::~CAkEmitter / CAkSpeakerPan::GetDecodingMatrixShape, indicating a potential race condition where the spatializer attempts to access decoding data while the object is being torn down.
Critical Finding: I have isolated the cause to the Wwise Conversion Settings codec:
Vorbis: Causes the crash consistently upon object destruction.
PCM: Does not crash.
It appears that the Vorbis decoder lifecycle conflicts with the Steam Audio plugin during the destruction phase, whereas PCM data handles the cleanup safely.
Steps To Reproduce
- In Wwise, apply the Steam Audio Spatializer plugin to a Sound Voice.
- Set the Conversion Settings for the audio source to Vorbis.
- In Unity, play this sound on a GameObject.
Observe the crash. (Switching the conversion settings to PCM prevents this crash).
Crash Dump
ERROR: SymGetSymFromAddr64, GetLastError: 'Attempt to access invalid address.' (Address: 00007FFBB30921AC)
0x00007FFBB30921AC (SteamAudioWwise) (function-name not available)
ERROR: SymGetSymFromAddr64, GetLastError: 'Attempt to access invalid address.' (Address: 00007FFBB3091FFC)
0x00007FFBB3091FFC (SteamAudioWwise) (function-name not available)
0x00007FFBB2042110 (AkUnitySoundEngine) AkTlsSetValue
0x00007FFBB1FB7C95 (AkUnitySoundEngine) AK::Replay::UnregisterNotificationCallback
0x00007FFBB1FB6B61 (AkUnitySoundEngine) AK::Replay::UnregisterNotificationCallback
0x00007FFBB1FDDD84 (AkUnitySoundEngine) CAkSpeakerPan::GetDecodingMatrixShape
0x00007FFBB1FDAA55 (AkUnitySoundEngine) CAkSpeakerPan::GetDecodingMatrixShape
0x00007FFBB1FFBB5D (AkUnitySoundEngine) CAkEmitter::~CAkEmitter
0x00007FFBB1F6B93F (AkUnitySoundEngine) AkMonitorData::RealSizeof
0x00007FFBB1F6CCC1 (AkUnitySoundEngine) AkMonitorData::RealSizeof
0x00007FFBB1F7A6A8 (AkUnitySoundEngine) CAkGameObject::~CAkGameObject
0x00007FFBB1F7B1CC (AkUnitySoundEngine) CAkGameObject::~CAkGameObject
0x00007FFBB1F6E60F (AkUnitySoundEngine) AkMonitorData::RealSizeof
0x00007FFBB1FBD8C7 (AkUnitySoundEngine) AK::Replay::UnregisterNotificationCallback
0x00007FFCC57A257D (KERNEL32) BaseThreadInitThunk
0x00007FFCC66CAA78 (ntdll) RtlUserThreadStart
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