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Cap-go/capacitor-audiosession

@capgo/capacitor-plugin-audiosession

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This plugin works on iOS only.

This plugin is a port of https://github.com/saghul/cordova-plugin-audioroute and allows iOS applications to get notified about audio session interruptions and route changes (for example when a headset is connected). To query and override the audio device in use is also supported.

Why Capacitor AudioSession?

The only free and maintained iOS audio session plugin for Capacitor:

  • Audio route control - Detect and manage headphones, Bluetooth, speakers
  • Interruption handling - Respond to phone calls, alarms, and other interruptions
  • Output override - Force audio to speaker or restore default routing
  • Same JavaScript API - Compatible interface with paid alternatives
  • iOS-specific - Leverages AVAudioSession for deep iOS integration

Essential for VoIP apps, music players, podcast apps, and any app requiring precise audio routing control.

Documentation

The most complete doc is available here: https://capgo.app/docs/plugins/audiosession/

Install

npm install @capgo/capacitor-plugin-audiosession
npx cap sync

For now this plugin works only in Capacitor 4.0+.

API

iOS-only plugin to query and control the audio session output and listen to route changes and interruptions.

currentOutputs()

currentOutputs() => Promise<AudioSessionPorts[]>

Get the current active audio output routes.

On web and non-iOS platforms, this resolves to an empty array.

Returns: Promise<AudioSessionPorts[]>


overrideOutput(...)

overrideOutput(type: OutputOverrideType) => Promise<OverrideResult>

Override the current audio output route.

Use speaker to force playback through the built-in speaker, or default to restore the system-selected route.

Param Type Description
type OutputOverrideType The desired output override type.

Returns: Promise<OverrideResult>


addListener('routeChanged', ...)

addListener(eventName: 'routeChanged', listenerFunc: RouteChangeListener) => Promise<PluginListenerHandle>

Listen for audio route changes (e.g. headset connected/disconnected).

Param Type Description
eventName 'routeChanged' The route change event name.
listenerFunc RouteChangeListener Callback invoked with the route change reason.

Returns: Promise<PluginListenerHandle>


addListener('interruption', ...)

addListener(eventName: 'interruption', listenerFunc: InterruptionListener) => Promise<PluginListenerHandle>

Listen for audio session interruptions (e.g. incoming call) and their end.

Param Type Description
eventName 'interruption' The interruption event name.
listenerFunc InterruptionListener Callback invoked with the interruption type.

Returns: Promise<PluginListenerHandle>


getPluginVersion()

getPluginVersion() => Promise<{ version: string; }>

Get the native Capacitor plugin version

Returns: Promise<{ version: string; }>


Interfaces

PluginListenerHandle

Prop Type
remove () => Promise<void>

Type Aliases

OverrideResult

Result of an output override request.

{ success: boolean; message: string; }

OutputOverrideType

Output override type.

  • default: Use the system-selected route.
  • speaker: Force playback through the built-in speaker.

'default' | 'speaker'

RouteChangeListener

Listener called when the audio route changes.

(reason: RouteChangeReasons): void

InterruptionListener

Listener called when the audio session is interrupted or ends.

(type: InterruptionTypes): void

Enums

AudioSessionPorts

Members Value
AIR_PLAY 'airplay'
BLUETOOTH_LE 'bluetooth-le'
BLUETOOTH_HFP 'bluetooth-hfp'
BLUETOOTH_A2DP 'bluetooth-a2dp'
BUILT_IN_SPEAKER 'builtin-speaker'
BUILT_IN_RECEIVER 'builtin-receiver'
HDMI 'hdmi'
HEADPHONES 'headphones'
LINE_OUT 'line-out'

RouteChangeReasons

Members Value
NEW_DEVICE_AVAILABLE 'new-device-available'
OLD_DEVICE_UNAVAILABLE 'old-device-unavailable'
CATEGORY_CHANGE 'category-change'
OVERRIDE 'override'
WAKE_FROM_SLEEP 'wake-from-sleep'
NO_SUITABLE_ROUTE_FOR_CATEGORY 'no-suitable-route-for-category'
ROUTE_CONFIGURATION_CHANGE 'route-config-change'
UNKNOWN 'unknown'

InterruptionTypes

Members Value
BEGAN 'began'
ENDED 'ended'

License

MIT

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Capacitor plugin to manage audio session

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