@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/

Compatibility

Plugin version	Capacitor compatibility	Maintained
v8.*.*	v8.*.*	✅
v7.*.*	v7.*.*	On demand
v6.*.*	v6.*.*	❌
v5.*.*	v5.*.*	❌

Note: The major version of this plugin follows the major version of Capacitor. Use the version that matches your Capacitor installation (e.g., plugin v8 for Capacitor 8). Only the latest major version is actively maintained.

Install

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

For now this plugin works only in Capacitor 4.0+.

API

• currentOutputs()
• overrideOutput(...)
• addListener('routeChanged', ...)
• addListener('interruption', ...)
• getPluginVersion()
• Interfaces
• Type Aliases
• Enums

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