Microsoft-Windows-XAudio2

Event	Title	Channel	Sample	Rule
16	XAudio2 initialized at Instance on processor(s) Processors.	Debug	N	N
17	CPU does not meet minimum requirement	Debug	N	N
32	XAudio2 at Pointer destroyed.	Debug	N	N
33	Cleaned up SourceVoiceCount source voices, SubmixVoiceCount submix voices and …	Debug	N	N
48	Submix voice created at Address: processing stage = ProcessingStage, channels = …	Debug	N	N
49	Sample rate OriginalHzHz adjusted to NewHzHz (submix rates must be multiples of …	Debug	N	N
64	Mastering voice created at Address: channels = Channels, sample rate = …	Debug	N	N
65	Sample rate OriginalHzHz adjusted to NewHzHz (mastering rates must be multiples …	Debug	N	N
66	Mastering voice at Address connected to RendererId device at SampleRateHz, …	Debug	N	N
67	Supplied device interface ID(DeviceId) converted to endpoint ID (EndpointId).	Debug	N	N
80	XAudio2 critical error: hr; the XAudio2 engine should be released and …	Debug	N	N
96	Spent Timems in Callback callbacks.	Debug	N	N
97	Spent Valuems in audio thread; XAudio2 possibly overloaded.	Debug	N	N
98	Glitch at output sample Value.	Debug	N	N
99	Voice at Pointer starved: no more source buffers are available, but no …	Debug	N	N
112	XAudio2 engine started	Debug	N	N
128	XAudio2 engine stopped	Debug	N	N
256	MinimumCyclesPerQuantum: MinimumCyclesPerQuantum MaximumCyclesPerQuantum: …	Performance	N	N

Event ID 16: XAudio2 initialized at Instance on processor(s) Processors.

Channel: Debug
Task: Initialize

Message #

XAudio2 initialized at %1 on processor(s) %2

Fields #

Name	Description
`Instance` Pointer
`Processors` HexInt32

Event ID 17: CPU does not meet minimum requirement

Channel: Debug
Task: Initialize

Event ID 32: XAudio2 at Pointer destroyed.

Channel: Debug
Task: Shutdown

Message #

XAudio2 at %1 destroyed

Fields #

Name	Description
`Pointer` Pointer

Event ID 33: Cleaned up SourceVoiceCount source voices, SubmixVoiceCount submix voices and MasteringVoiceCount mastering voices.

Channel: Debug
Task: Shutdown

Message #

Cleaned up %1 source voices, %2 submix voices and %3 mastering voices

Fields #

Name	Description
`SourceVoiceCount` UInt32
`SubmixVoiceCount` UInt32
`MasteringVoiceCount` UInt32

Event ID 48: Submix voice created at Address: processing stage = ProcessingStage, channels = Channels, sample rate = SampleRateHz.

Channel: Debug
Task: SubmixVoice
Opcode: Create

Message #

Submix voice created at %1: processing stage = %2, channels = %3, sample rate = %4Hz

Fields #

Name	Description
`Address` Pointer
`ProcessingStage` UInt32
`Channels` UInt32
`SampleRate` UInt32

Event ID 49: Sample rate OriginalHzHz adjusted to NewHzHz (submix rates must be multiples of Quantum on this platform).

Channel: Debug
Task: SubmixVoice
Opcode: Create

Message #

Sample rate %1Hz adjusted to %2Hz (submix rates must be multiples of %3 on this platform)

Fields #

Name	Description
`OriginalHz` UInt32
`NewHz` UInt32
`Quantum` UInt32

Event ID 64: Mastering voice created at Address: channels = Channels, sample rate = SampleRateHz, output to RendererId.

Channel: Debug
Task: MasteringVoice
Opcode: Create

Message #

Mastering voice created at %1: channels = %2, sample rate = %3Hz, output to %4

Fields #

Name	Description
`Address` Pointer
`Channels` UInt32
`SampleRate` UInt32
`RendererId` UnicodeString

Event ID 65: Sample rate OriginalHzHz adjusted to NewHzHz (mastering rates must be multiples of Quantum on this platform).

Channel: Debug
Task: MasteringVoice
Opcode: Create

Message #

Sample rate %1Hz adjusted to %2Hz (mastering rates must be multiples of %3 on this platform)

Fields #

Name	Description
`OriginalHz` UInt32
`NewHz` UInt32
`Quantum` UInt32

Event ID 66: Mastering voice at Address connected to RendererId device at SampleRateHz, Channels channels.

Channel: Debug
Task: MasteringVoice
Opcode: Create

Message #

Mastering voice at %1 connected to %4 device at %3Hz, %2 channels

Fields #

Name	Description
`Address` Pointer
`Channels` UInt32
`SampleRate` UInt32
`RendererId` UnicodeString

Event ID 67: Supplied device interface ID(DeviceId) converted to endpoint ID (EndpointId).

Channel: Debug
Task: MasteringVoice
Opcode: Create

Message #

Supplied device interface ID(%1) converted to endpoint ID (%2)

Fields #

Name	Description
`DeviceId` UnicodeString
`EndpointId` UnicodeString

Event ID 80: XAudio2 critical error: hr; the XAudio2 engine should be released and re-created.

Channel: Debug

Message #

XAudio2 critical error: %1; the XAudio2 engine should be released and re-created

Fields #

Name	Description
`hr` Int32

Event ID 96: Spent Timems in Callback callbacks.

Channel: Debug
Task: Processing
Opcode: PerformanceWarning

Message #

Spent %1ms in %2 callbacks

Fields #

Name	Description
`Time` Float
`Callback` UInt32

Event ID 97: Spent Valuems in audio thread; XAudio2 possibly overloaded.

Channel: Debug
Task: Processing
Opcode: PerformanceWarning

Message #

Spent %1ms in audio thread; XAudio2 possibly overloaded

Fields #

Name	Description
`Value` Float

Event ID 98: Glitch at output sample Value.

Channel: Debug
Task: Processing
Opcode: PerformanceWarning

Message #

Glitch at output sample %1

Fields #

Name	Description
`Value` UInt32

Event ID 99: Voice at Pointer starved: no more source buffers are available, but no end-of-stream marker was received.

Channel: Debug
Task: SourceVoice
Opcode: PerformanceWarning

Message #

Voice at %1 starved: no more source buffers are available, but no end-of-stream marker was received

Fields #

Name	Description
`Pointer` Pointer

Event ID 112: XAudio2 engine started

Channel: Debug
Task: Processing
Opcode: Start

Event ID 128: XAudio2 engine stopped

Channel: Debug
Task: Processing
Opcode: Stop

Event ID 256: MinimumCyclesPerQuantum: MinimumCyclesPerQuantum MaximumCyclesPerQuantum: MaximumCyclesPerQuantum GlitchesSinceEngineStarted: GlitchesSinceEngineStarted CpuUsage: CpuUsage TotalMemoryUsage: Latency...

Channel: Performance
Task: Processing

Description

MinimumCyclesPerQuantum: MinimumCyclesPerQuantum MaximumCyclesPerQuantum: MaximumCyclesPerQuantum GlitchesSinceEngineStarted: GlitchesSinceEngineStarted CpuUsage: CpuUsage TotalMemoryUsage: LatencyInSamples ActiveSourceVoices: TotalMemoryUsage TotalSourceVoices: ActiveSourceVoices ActiveSubmixVoices: TotalSourceVoices ActiveResamplers: ActiveSubmixVoices ActiveMatrixMixers: ActiveResamplers

Message #

MinimumCyclesPerQuantum: %1 MaximumCyclesPerQuantum: %2 GlitchesSinceEngineStarted: %3 CpuUsage: %4 TotalMemoryUsage: %5 ActiveSourceVoices: %6 TotalSourceVoices: %7 ActiveSubmixVoices: %8 ActiveResamplers: %9 ActiveMatrixMixers: %10

Fields #

Name	Description
`MinimumCyclesPerQuantum` UInt32
`MaximumCyclesPerQuantum` UInt32
`GlitchesSinceEngineStarted` UInt32
`CpuUsage` Float
`LatencyInSamples` UInt32
`TotalMemoryUsage` UInt32
`ActiveSourceVoices` UInt32
`TotalSourceVoices` UInt32
`ActiveSubmixVoices` UInt32
`ActiveResamplers` UInt32
`ActiveMatrixMixers` UInt32

Provenance

ETW provider GUID 1ee3abdb-c1fc-4b43-9e56-11064abba866

Defined in XAudio2_9.dll, which carries the event manifest.

WS2022-20348.4893, schema read from the registered manifest, binary version 10.0.20348.1, captured 2026-06-02 — Manifest XML pack, 1.9 MB
Win11-26200.6584, schema read from the registered manifest, binary version 10.0.26100.1, captured 2026-06-02 — Manifest XML pack, 2.0 MB