Microsoft-Windows-XAudio2

18 events across 2 channels

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

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

Provider: Microsoft-Windows-XAudio2
Channel: Debug
Task: Initialize

Description

XAudio2 initialized at Instance on processor(s) Processors.

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

Provider: Microsoft-Windows-XAudio2
Channel: Debug
Task: Initialize

Description

CPU does not meet minimum requirement.

Message #

CPU does not meet minimum requirement

Event ID 32: XAudio2 at Pointer destroyed.

Provider: Microsoft-Windows-XAudio2
Channel: Debug
Task: Shutdown

Description

XAudio2 at Pointer destroyed.

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.

Provider: Microsoft-Windows-XAudio2
Channel: Debug
Task: Shutdown

Description

Cleaned up SourceVoiceCount source voices, SubmixVoiceCount submix voices and MasteringVoiceCount mastering voices.

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.

Provider: Microsoft-Windows-XAudio2
Channel: Debug
Task: SubmixVoice
Opcode: Create

Description

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

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).

Provider: Microsoft-Windows-XAudio2
Channel: Debug
Task: SubmixVoice
Opcode: Create

Description

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

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.

Provider: Microsoft-Windows-XAudio2
Channel: Debug
Task: MasteringVoice
Opcode: Create

Description

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

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).

Provider: Microsoft-Windows-XAudio2
Channel: Debug
Task: MasteringVoice
Opcode: Create

Description

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

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.

Provider: Microsoft-Windows-XAudio2
Channel: Debug
Task: MasteringVoice
Opcode: Create

Description

Mastering voice at Address connected to RendererId device at SampleRateHz, Channels channels.

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).

Provider: Microsoft-Windows-XAudio2
Channel: Debug
Task: MasteringVoice
Opcode: Create

Description

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

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.

Provider: Microsoft-Windows-XAudio2
Channel: Debug

Description

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

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.

Provider: Microsoft-Windows-XAudio2
Channel: Debug
Task: Processing
Opcode: PerformanceWarning

Description

Spent Timems in Callback callbacks.

Message #

Spent %1ms in %2 callbacks

Fields #

Name	Description
`Time` Float
`Callback` UInt32

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

Provider: Microsoft-Windows-XAudio2
Channel: Debug
Task: Processing
Opcode: PerformanceWarning

Description

Spent Valuems in audio thread; XAudio2 possibly overloaded.

Message #

Spent %1ms in audio thread; XAudio2 possibly overloaded

Fields #

Name	Description
`Value` Float

Event ID 98: Glitch at output sample Value.

Provider: Microsoft-Windows-XAudio2
Channel: Debug
Task: Processing
Opcode: PerformanceWarning

Description

Glitch at output sample Value.

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.

Provider: Microsoft-Windows-XAudio2
Channel: Debug
Task: SourceVoice
Opcode: PerformanceWarning

Description

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

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

Provider: Microsoft-Windows-XAudio2
Channel: Debug
Task: Processing
Opcode: Start

Description

XAudio2 engine started.

Message #

XAudio2 engine started

Event ID 128: XAudio2 engine stopped

Provider: Microsoft-Windows-XAudio2
Channel: Debug
Task: Processing
Opcode: Stop

Description

XAudio2 engine stopped.

Message #

XAudio2 engine stopped

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

Provider: Microsoft-Windows-XAudio2
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

Where this provider's schema came from, and which Windows build it was observed on. Windows can change a provider's event schema between builds, so use this to judge whether it matches the build you collect from.

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

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

Observed on:

WS2022-20348.4893, schema read from the registered manifest, binary version 10.0.20348.1, captured 2026-06-02
Win11-26200.6584, schema read from the registered manifest, binary version 10.0.26100.1, captured 2026-06-02

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`type:`	`events` / `rules` / `providers`
`vendor:`	`sigma` / `elastic` / `splunk` / `kusto` / `chronicle` (vendor name alone also works: `sigma:`, `kql:`, `secops:`…)
`tactic:`	TA-id, slug, or name: `credential_access`, `TA0006`
`technique:`	technique or sub-technique ID: `T1003`, `T1003.001` (alias `tech:`)
`severity:`	`critical` / `high` / `medium` / `low` / `informational` (alias `sev:`)
`risk_score`	Numeric comparison on the Elastic risk score (0 to 100): `risk_score>50`, `risk_score<=20`, `risk_score=99` (alias `risk`; Elastic rules only)
`stages:`	Rules with exactly N pipeline stages
`correlation:`	`single_event` / `sequence` / `alternatives` / `alternatives_cross_log` / `all_required` / `correlated`
`with:`	Co-occurrence event-id; stacks (`with:4624 with:4769`) to require all, while a comma list in one occurrence (`with:4624,4769`) is an either-or group. Implies multi-event
`like:`	Structural neighbors of a rule slug (equivalents + subsumption stricter / broader): `like:comsvcs_lsass_memory_dump-splunk-sysmon`
`groupby:`	Entity-grouping substring match against `group_by_keys`: `groupby:user`, `groupby:host`
`uses:`	Rules whose predicate tree touches the field (any kind, any value): `uses:CommandLine`
`excludes:`	Rules with top-level `not()` clauses on the field (FP whitelists): `excludes:ParentImage`
`field:` / `value:`	Predicate search; narrows rule cards to those with a matching leaf and drives the indicator tier. Unquoted = substring, wildcards allowed (`value:mimikatz`)
`indicator:`	Shorthand for `field:F value:V`: `indicator:Image=*\powershell.exe`
`kind:`	Filter by predicate kind. Narrows rule cards to those carrying a matching predicate leaf (`vendor:elastic kind:cidr_match`) and drives the indicator tier: `contains` / `starts_with` / `ends_with` / `regex` / `cidr` / `eq` / `in` … (operator aliases `op:`/`match:`)
`has:` / `no:`	`sample`, `field`, `notes`, `refs`, `trace`, `thirdparty`, `rule`, `pattern`, `timewindow`, `threshold`, `newterms`, `sigma`/`elastic`/`splunk`/`kusto`/`chronicle`
`-op:val`	Exclude matches; works on most operators but not `type:`/`like:`/`has:`/`no:` (use `no:<flag>` to exclude a rule flag): `tactic:execution -vendor:splunk`. Standalone `-kind:`/`-field:`/`-value:` drop every rule carrying a matching predicate leaf (`type:rules -kind:is_null`)
`field:"…"` / `value:"…"`	Quoted value = anchored exact match (also allows spaces): `value:"net user"`
`a,b`	Comma = OR inside one operator (`vendor:sigma,elastic`, `severity:high,critical`); repeating a facet merges the same way. `field:`/`value:` never split (literal commas)
`vendors:` / `stage:`	Singular and plural spellings fold to the canonical operator and value: `tactics:` = `tactic:`, `type:event` = `type:events`, `correlation:sequences` = `correlation:sequence`, `has:thresholds` = `has:threshold`
`"quoted phrase"`	Exact-match a multi-word phrase (free text)

Microsoft-Windows-XAudio2

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

Description

Message #

Fields #

Event ID 17: CPU does not meet minimum requirement

Description

Message #

Event ID 32: XAudio2 at Pointer destroyed.

Description

Message #

Fields #

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

Description

Message #

Fields #

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

Description

Message #

Fields #

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

Description

Message #

Fields #

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

Description

Message #

Fields #

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

Description

Message #

Fields #

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

Description

Message #

Fields #

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

Description

Message #

Fields #

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

Description

Message #

Fields #

Event ID 96: Spent Timems in Callback callbacks.

Description

Message #

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

Description

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Event ID 98: Glitch at output sample Value.

Description

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

Description

Message #

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Event ID 112: XAudio2 engine started

Description

Message #

Event ID 128: XAudio2 engine stopped

Description

Message #

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

Description

Message #

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Provenance

Downloads