Class AudioManager

Definition

Namespace:

Tizen.Multimedia

Assembly:

Tizen.Multimedia.dll

Provides functionality to control volume levels and monitor the status of audio devices within the system. The AudioManager class enables developers to retrieve the volume controller, obtain a list of currently connected audio devices, and subscribe to events related to device connection changes as well as audio stream status changes, thereby facilitating comprehensive audio management.

public static class AudioManager

Inheritance

object

AudioManager

Properties

VolumeController

Gets the volume controller, which allows for adjustment and retrieval of the current audio volume level. This property provides access to methods and properties that enable developers to manage volume settings for different audio streams and ensure that the audio experience meets user preferences.

Declaration

public static AudioVolume VolumeController { get; }

Property Value

Type	Description
AudioVolume	The AudioVolume.

Methods

GetConnectedDevices()

Retrieves a collection of all audio devices currently connected to the system. This method returns an System.Collections.Generic.IEnumerable<T>, allowing developers to easily enumerate through all available audio devices, such as speakers, microphones, and headphones. It is useful for applications that need to adapt to changes in the audio environment or support multiple audio output/input devices.

Declaration

public static IEnumerable<AudioDevice> GetConnectedDevices()

Returns

Type	Description
System.Collections.Generic.IEnumerable<T><AudioDevice>	An IEnumerable<AudioDevice> that contains connected devices.

Events

DeviceConnectionChanged

Occurs when the state of an audio device connection changes, such as when a device is connected or disconnected. Subscribing to this event allows developers to be notified of changes in the audio setup, enabling dynamic adjustments in the application to accommodate new devices or handle disconnections accordingly.

Declaration

public static event EventHandler<AudioDeviceConnectionChangedEventArgs> DeviceConnectionChanged

Event Type

Type	Description
System.EventHandler<TEventArgs><AudioDeviceConnectionChangedEventArgs>

DeviceRunningChanged

Occurs when an audio stream starts running on a connected audio device. This event is triggered when a new audio stream begins after all previous streams have stopped. It is important to note that if this event is invoked while an audio stream is still running, it will not be triggered again until all streams have been stopped and a new one starts. This is especially useful for managing audio playback scenarios where multiple audio streams may be played sequentially.

Declaration

public static event EventHandler<AudioDeviceRunningChangedEventArgs> DeviceRunningChanged

Event Type

Type	Description
System.EventHandler<TEventArgs><AudioDeviceRunningChangedEventArgs>

Remarks

If this event is invoked once and the audio stream is still running on the device,
this event will not be invoked anymore, even if there are more audio streams to run.
This event is invoked only when all streams are stopped and a new stream starts to run.

Exceptions

Type	Condition
System.InvalidOperationException	AudioManager failed to communicate internally or allocate memory.