Namespaces
namespace	Interfaces

Classes
class	AudioCaptureClient
	Audio Capture Client. More...

class	AudioClient
	Windows CoreAudio AudioClient. More...

struct	AudioClientActivationParams
	AUDIOCLIENT_ACTIVATION_PARAMS https://docs.microsoft.com/en-us/windows/win32/api/audioclientactivationparams/ns-audioclientactivationparams-audioclient_activation_params. More...

struct	AudioClientProcessLoopbackParams
	AUDIOCLIENT_PROCESS_LOOPBACK_PARAMS https://docs.microsoft.com/en-us/windows/win32/api/audioclientactivationparams/ns-audioclientactivationparams-audioclient_process_loopback_params. More...

struct	AudioClientProperties
	The AudioClientProperties structure is used to set the parameters that describe the properties of the client's audio stream. More...

class	AudioClockClient
	Audio Clock Client. More...

class	AudioEndpointVolume
	Audio Endpoint Volume. More...

class	AudioEndpointVolumeCallback

class	AudioEndpointVolumeChannel
	Audio Endpoint Volume Channel. More...

class	AudioEndpointVolumeChannels
	Audio Endpoint Volume Channels. More...

class	AudioEndpointVolumeStepInformation
	Audio Endpoint Volume Step Information. More...

class	AudioEndpointVolumeVolumeRange
	Audio Endpoint Volume Volume Range. More...

class	AudioMeterInformation
	Audio Meter Information. More...

class	AudioMeterInformationChannels
	Audio Meter Information Channels. More...

class	AudioRenderClient
	Audio Render Client. More...

class	AudioSessionControl
	AudioSessionControl object for information regarding an audio session. More...

class	AudioSessionEventsCallback
	AudioSessionEvents callback implementation. More...

class	AudioSessionManager
	AudioSessionManager. More...

class	AudioSessionNotification

class	AudioStreamVolume
	Manages the AudioStreamVolume for the AudioClient. More...

class	AudioVolumeNotificationData
	Audio Volume Notification Data. More...

class	Connector
	Connector. More...

class	DeviceTopology
	Windows CoreAudio DeviceTopology. More...

class	MMDevice
	MM Device. More...

class	MMDeviceCollection
	Multimedia Device Collection. More...

class	MMDeviceEnumerator
	MM Device Enumerator. More...

struct	PropertyKey
	PROPERTYKEY is defined in wtypes.h. More...

class	PropertyKeys
	Property Keys. More...

class	PropertyStore
	Property Store class, only supports reading properties at the moment. More...

class	PropertyStoreProperty
	Property Store Property. More...

class	SessionCollection
	Collection of sessions. More...

class	SimpleAudioVolume
	Windows CoreAudio SimpleAudioVolume. More...

class	WasapiCapture
	Audio Capture using Wasapi See http://msdn.microsoft.com/en-us/library/dd370800%28VS.85%29.aspx. More...

Enumerations
enum	CaptureState { Stopped , Starting , Capturing , Stopping }
	Represents state of a capture device. More...

enum	AudioClientBufferFlags { None , DataDiscontinuity = 0x1 , Silent = 0x2 , TimestampError = 0x4 }
	Audio Client Buffer Flags. More...

enum	AudioClientShareMode { Shared , Exclusive }
	AUDCLNT_SHAREMODE. More...

enum	AudioClientStreamFlags : uint { None , CrossProcess = 0x00010000 , Loopback = 0x00020000 , EventCallback = 0x00040000 , NoPersist = 0x00080000 , RateAdjust = 0x00100000 , SrcDefaultQuality = 0x08000000 , AutoConvertPcm = 0x80000000 }
	AUDCLNT_STREAMFLAGS https://docs.microsoft.com/en-us/windows/win32/coreaudio/audclnt-streamflags-xxx-constants. More...

enum	ProcessLoopbackMode { IncludeTargetProcessTree , ExcludeTargetProcessTree }
	PROCESS_LOOPBACK_MODE https://docs.microsoft.com/en-us/windows/win32/api/audioclientactivationparams/ne-audioclientactivationparams-process_loopback_mode. More...

enum	AudioClientActivationType { Default , ProcessLoopback }
	AUDIOCLIENT_ACTIVATION_TYPE https://docs.microsoft.com/en-us/windows/win32/api/audioclientactivationparams/ne-audioclientactivationparams-audioclient_activation_type. More...

enum	AudioClientStreamOptions { None = 0 , Raw = 0x1 , MatchFormat = 0x2 , Ambisonics = 0x4 }
	Defines values that describe the characteristics of an audio stream. AUDCLNT_STREAMOPTIONS https://docs.microsoft.com/en-us/windows/win32/api/audioclient/ne-audioclient-audclnt_streamoptions. More...

enum	AudioStreamCategory { Other = 0 , ForegroundOnlyMedia , BackgroundCapableMedia , Communications , Alerts , SoundEffects , GameEffects , GameMedia , GameChat , Speech , Movie , Media , FarFieldSpeech , UniformSpeech , VoiceTyping }
	Specifies the category of an audio stream. https://docs.microsoft.com/en-us/windows/win32/api/audiosessiontypes/ne-audiosessiontypes-audio_stream_category AUDIO_STREAM_CATEGORY. More...

enum	ConnectorType { UnknownConnector , PhysicalInternal , PhysicalExternal , SoftwareIo , SoftwareFixed , Network }
	Connector Type. More...

enum	DataFlow { Render , Capture , All }
	The EDataFlow enumeration defines constants that indicate the direction in which audio data flows between an audio endpoint device and an application. More...

enum	DeviceState { Active = 0x00000001 , Disabled = 0x00000002 , NotPresent = 0x00000004 , Unplugged = 0x00000008 , All = 0x0000000F }
	Device State. More...

enum	EEndpointHardwareSupport { Volume = 0x00000001 , Mute = 0x00000002 , Meter = 0x00000004 }
	Endpoint Hardware Support. More...

enum	Role { Console , Multimedia , Communications }
	The ERole enumeration defines constants that indicate the role that the system has assigned to an audio endpoint device. More...

Functions
delegate void	AudioEndpointVolumeNotificationDelegate (AudioVolumeNotificationData data)
	Audio Endpoint Volume Notifiaction Delegate.

Enumeration Type Documentation

◆ AudioClientActivationType

enum NAudio.CoreAudioApi.AudioClientActivationType

AUDIOCLIENT_ACTIVATION_TYPE https://docs.microsoft.com/en-us/windows/win32/api/audioclientactivationparams/ne-audioclientactivationparams-audioclient_activation_type.

Enumerator
Default	AUDIOCLIENT_ACTIVATION_TYPE_DEFAULT Default activation.
ProcessLoopback	AUDIOCLIENT_ACTIVATION_TYPE_PROCESS_LOOPBACK Process loopback activation, allowing for the inclusion or exclusion of audio rendered by the specified process and its child processes.

◆ AudioClientBufferFlags

enum NAudio.CoreAudioApi.AudioClientBufferFlags

Audio Client Buffer Flags.

Enumerator
None	None.
DataDiscontinuity	AUDCLNT_BUFFERFLAGS_DATA_DISCONTINUITY.
Silent	AUDCLNT_BUFFERFLAGS_SILENT.
TimestampError	AUDCLNT_BUFFERFLAGS_TIMESTAMP_ERROR.

◆ AudioClientShareMode

enum NAudio.CoreAudioApi.AudioClientShareMode

AUDCLNT_SHAREMODE.

Enumerator
Shared	AUDCLNT_SHAREMODE_SHARED,.
Exclusive	AUDCLNT_SHAREMODE_EXCLUSIVE.

◆ AudioClientStreamFlags

enum NAudio.CoreAudioApi.AudioClientStreamFlags : uint

AUDCLNT_STREAMFLAGS https://docs.microsoft.com/en-us/windows/win32/coreaudio/audclnt-streamflags-xxx-constants.

Enumerator
None	None.
CrossProcess	AUDCLNT_STREAMFLAGS_CROSSPROCESS The audio stream will be a member of a cross-process audio session.
Loopback	AUDCLNT_STREAMFLAGS_LOOPBACK The audio stream will operate in loopback mode.
EventCallback	AUDCLNT_STREAMFLAGS_EVENTCALLBACK Processing of the audio buffer by the client will be event driven.
NoPersist	AUDCLNT_STREAMFLAGS_NOPERSIST The volume and mute settings for an audio session will not persist across application restarts.
RateAdjust	AUDCLNT_STREAMFLAGS_RATEADJUST The sample rate of the stream is adjusted to a rate specified by an application.
SrcDefaultQuality	AUDCLNT_STREAMFLAGS_SRC_DEFAULT_QUALITY When used with AUDCLNT_STREAMFLAGS_AUTOCONVERTPCM, a sample rate converter with better quality than the default conversion but with a higher performance cost is used. This should be used if the audio is ultimately intended to be heard by humans as opposed to other scenarios such as pumping silence or populating a meter.
AutoConvertPcm	AUDCLNT_STREAMFLAGS_AUTOCONVERTPCM A channel matrixer and a sample rate converter are inserted as necessary to convert between the uncompressed format supplied to IAudioClient::Initialize and the audio engine mix format.

◆ AudioClientStreamOptions

enum NAudio.CoreAudioApi.AudioClientStreamOptions

Defines values that describe the characteristics of an audio stream. AUDCLNT_STREAMOPTIONS https://docs.microsoft.com/en-us/windows/win32/api/audioclient/ne-audioclient-audclnt_streamoptions.

Enumerator
None	AUDCLNT_STREAMOPTIONS_NONE No stream options.
Raw	AUDCLNT_STREAMOPTIONS_RAW The audio stream is a 'raw' stream that bypasses all signal processing except for endpoint specific, always-on processing in the APO, driver, and hardware.
MatchFormat	AUDCLNT_STREAMOPTIONS_MATCH_FORMAT The audio client is requesting that the audio engine match the format proposed by the client. The audio engine will match this format only if the format is supported by the audio driver and associated APOs.
Ambisonics	AUDCLNT_STREAMOPTIONS_AMBISONICS.

◆ AudioStreamCategory

enum NAudio.CoreAudioApi.AudioStreamCategory

Specifies the category of an audio stream. https://docs.microsoft.com/en-us/windows/win32/api/audiosessiontypes/ne-audiosessiontypes-audio_stream_category AUDIO_STREAM_CATEGORY.

Enumerator
Other	Other audio stream.
ForegroundOnlyMedia	Media that will only stream when the app is in the foreground.
BackgroundCapableMedia	Media that can be streamed when the app is in the background.
Communications	Real-time communications, such as VOIP or chat.
Alerts	Alert sounds.
SoundEffects	Sound effects.
GameEffects	Game sound effects.
GameMedia	Background audio for games.
GameChat	Game chat audio. Similar to AudioCategory_Communications except that AudioCategory_GameChat will not attenuate other streams.
Speech	Speech.
Movie	Stream that includes audio with dialog.
Media	Stream that includes audio without dialog.
FarFieldSpeech	Media is audio captured with the intent of capturing voice sources located in the �far field�. (Far away from the microphone.)
UniformSpeech	Media is captured audio that requires consistent speech processing for the captured audio stream across all Windows devices. Used by applications that process speech data using machine learning algorithms.
VoiceTyping	Media is audio captured with the intent of enabling dictation or typing by voice.

◆ CaptureState

enum NAudio.CoreAudioApi.CaptureState

Represents state of a capture device.

Enumerator
Stopped	Not recording.
Starting	Beginning to record.
Capturing	Recording in progress.
Stopping	Requesting stop.

◆ ConnectorType

enum NAudio.CoreAudioApi.ConnectorType

Connector Type.

Enumerator
UnknownConnector	The connector is part of a connection of unknown type.
PhysicalInternal	The connector is part of a physical connection to an auxiliary device that is installed inside the system chassis.
PhysicalExternal	The connector is part of a physical connection to an external device.
SoftwareIo	The connector is part of a software-configured I/O connection (typically a DMA channel) between system memory and an audio hardware device on an audio adapter.
SoftwareFixed	The connector is part of a permanent connection that is fixed and cannot be configured under software control.
Network	The connector is part of a connection to a network.

◆ DataFlow

enum NAudio.CoreAudioApi.DataFlow

The EDataFlow enumeration defines constants that indicate the direction in which audio data flows between an audio endpoint device and an application.

Enumerator
Render	Audio rendering stream. Audio data flows from the application to the audio endpoint device, which renders the stream.
Capture	Audio capture stream. Audio data flows from the audio endpoint device that captures the stream, to the application.
All	Audio rendering or capture stream. Audio data can flow either from the application to the audio endpoint device, or from the audio endpoint device to the application.

◆ DeviceState

enum NAudio.CoreAudioApi.DeviceState

Device State.

Enumerator
Active	DEVICE_STATE_ACTIVE.
Disabled	DEVICE_STATE_DISABLED.
NotPresent	DEVICE_STATE_NOTPRESENT.
Unplugged	DEVICE_STATE_UNPLUGGED.
All	DEVICE_STATEMASK_ALL.

◆ EEndpointHardwareSupport

enum NAudio.CoreAudioApi.EEndpointHardwareSupport

Endpoint Hardware Support.

Enumerator
Volume	Volume.
Mute	Mute.
Meter	Meter.

◆ ProcessLoopbackMode

enum NAudio.CoreAudioApi.ProcessLoopbackMode

PROCESS_LOOPBACK_MODE https://docs.microsoft.com/en-us/windows/win32/api/audioclientactivationparams/ne-audioclientactivationparams-process_loopback_mode.

Enumerator
IncludeTargetProcessTree	PROCESS_LOOPBACK_MODE_INCLUDE_TARGET_PROCESS_TREE Render streams from the specified process and its child processes are included in the activated process loopback stream.
ExcludeTargetProcessTree	PROCESS_LOOPBACK_MODE_EXCLUDE_TARGET_PROCESS_TREE Render streams from the specified process and its child processes are excluded from the activated process loopback stream.

◆ Role

enum NAudio.CoreAudioApi.Role

The ERole enumeration defines constants that indicate the role that the system has assigned to an audio endpoint device.

Enumerator
Console	Games, system notification sounds, and voice commands.
Multimedia	Music, movies, narration, and live music recording.
Communications	Voice communications (talking to another person).

Function Documentation

◆ AudioEndpointVolumeNotificationDelegate()

delegate void NAudio.CoreAudioApi.AudioEndpointVolumeNotificationDelegate ( AudioVolumeNotificationData data )

Audio Endpoint Volume Notifiaction Delegate.

Parameters

data	Audio Volume Notification Data

Namespaces

Classes

Enumerations

Functions