This is an early trending crash coming out of the 4.16 Preview. Users have not provided any additional information.
From Log:
/Game/VirtualRealityBP/Maps/UEDPIE_0_StartupMap.StartupMap (0.006787s) [2017.04.27-15.17.49:625][383]LogAudioMixerDebug: Audio Device Output Speaker Info: [2017.04.27-15.17.49:625][383]LogAudioMixerDebug: Name: Speakers (TASCAM UH-7000) [2017.04.27-15.17.49:625][383]LogAudioMixerDebug: Is Default: Yes [2017.04.27-15.17.49:625][383]LogAudioMixerDebug: Sample Rate: 44100 [2017.04.27-15.17.49:625][383]LogAudioMixerDebug: Channel Count: 2 [2017.04.27-15.17.49:625][383]LogAudioMixerDebug: Channel Order: [2017.04.27-15.17.49:625][383]LogAudioMixerDebug: 0: FrontLeft [2017.04.27-15.17.49:625][383]LogAudioMixerDebug: 1: FrontRight [2017.04.27-15.17.49:647][383]LogInit: FAudioDevice initialized. [2017.04.27-15.17.49:663][383]LogStats:Warning: MetaData mismatch. Did you assign a stat to two groups? New //STATGROUP_Threads//AudioMixerRenderThread///Thread_388c_0///####STATCAT_Advanced#### old //STATGROUP_Threads//AudioMixerRenderThread///Thread_2838_0///####STATCAT_Advanced#### [2017.04.27-15.17.49:679][383]LogUObjectGlobals:Warning: Failed to find object 'Class None.' [2017.04.27-15.17.49:679][383]LogLoad: Game class is 'GameModeBase' [2017.04.27-15.17.49:683][383]LogWorld: Bringing World /Game/VirtualRealityBP/Maps/UEDPIE_0_StartupMap.StartupMap up for play (max tick rate 60) at 2017.04.27-11.17.49 [2017.04.27-15.17.49:683][383]LogWorld: Bringing up level for play took: 0.002515 [2017.04.27-15.17.49:683][383]LogGameMode: FindPlayerStart: PATHS NOT DEFINED or NO PLAYERSTART with positive rating [2017.04.27-15.17.49:684][383]PIE: Info Play in editor start time for /Game/VirtualRealityBP/Maps/UEDPIE_0_StartupMap -0.343 [2017.04.27-15.17.49:689][383]LogPhonon: Creating Phonon environment...
repro steps currently unknown
Access violation - code c0000005 (first/second chance not available) phonon!<Unknown> phonon!<Unknown> phonon!<Unknown> UE4Editor_Phonon!Phonon::FPhononReverb::ProcessMixedAudio() [phononreverb.cpp:221] UE4Editor_Phonon!FSubmixEffectReverbPlugin::OnProcessAudio() [phononreverb.cpp:280] UE4Editor_Engine!FSoundEffectSubmix::ProcessAudio() [soundeffectsubmix.cpp:23] UE4Editor_AudioMixer!Audio::FMixerSubmix::ProcessAudio() [audiomixersubmix.cpp:262] UE4Editor_AudioMixer!Audio::FMixerSubmix::ProcessAudio() [audiomixersubmix.cpp:197] UE4Editor_AudioMixer!Audio::FMixerDevice::OnProcessAudioStream() [audiomixerdevice.cpp:338] UE4Editor_AudioMixer!Audio::IAudioMixerPlatformInterface::Run() [audiomixer.cpp:237] UE4Editor_Core!FRunnableThreadWin::Run() [windowsrunnablethread.cpp:76]
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-44451 in the post.