@capgo/capacitor-plugin-audiosession

This plugin works on iOS only.

This plugin is a port of 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

``bash
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.

$3

`typescript
currentOutputs() => Promise
`

Get the current active audio output routes.

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

Returns: Promise<AudioSessionPorts[]>

--------------------

$3

`typescript
overrideOutput(type: OutputOverrideType) => Promise
`

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>

--------------------

$3

`typescript
addListener(eventName: 'routeChanged', listenerFunc: RouteChangeListener) => Promise
`

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>

--------------------

$3

`typescript
addListener(eventName: 'interruption', listenerFunc: InterruptionListener) => Promise
`

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>

--------------------

$3

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

Get the native Capacitor plugin version

Returns: Promise<{ version: string; }>

--------------------

$3


#### PluginListenerHandle

| Prop | Type |
| ------------ | ----------------------------------------- |
| remove | () => Promise<void> |

$3


#### 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

$3


#### 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