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# Participant

> Represents a participant in a call.

`Participant` represents a remote member on an active
[`WebRTCCall`](/docs/browser-sdk/v4/reference/webrtc-call). Instances are
created by the call when members join and removed when they leave —
applications obtain them through
[`call.participants$`](/docs/browser-sdk/v4/reference/webrtc-call/participants\$),
not by construction.

Each participant exposes every per-member piece of state the SDK tracks: mute
state (audio/video), microphone processing flags (auto-gain, noise
suppression, echo cancellation), display name, hand-raise, talking detection,
sensitivity/volume levels, and current layout position. State is exposed in
two complementary forms — a snapshot getter (e.g.
[`audioMuted`](/docs/browser-sdk/v4/reference/participant/audio-muted\$#audiomuted))
for one-shot reads and an observable (`audioMuted$`) for reactive UI binding.

Control methods (`muteAudio`, `setMeta`, `toggleLowbitrate`, etc.) issue
server-side requests scoped to this member. Their effect depends on the
caller's capabilities — inspect the local
[`SelfCapabilities`](/docs/browser-sdk/v4/reference/self-capabilities) before
exposing controls in your UI. For the local participant — which adds device
selection, screen sharing, and local media stream control — use
[`SelfParticipant`](/docs/browser-sdk/v4/reference/self-participant).

## **Extends**

* `Destroyable`

## **Extended by**

* [`SelfParticipant`](/docs/browser-sdk/v4/reference/self-participant)

## **Implements**

* [`CallParticipant`](/docs/browser-sdk/v4/reference/interfaces/call-participant)

## **Constructors**

### Constructor

```ts
new Participant(id, executeMethod, deviceController): Participant
```

#### Parameters

**`id`** `string` — required

Unique identifier for this entity.

---

**`executeMethod`** `ExecuteMethod` — required

Function used to send `execute` RPC calls on this entity. See [`ExecuteMethod`](/docs/browser-sdk/v4/reference/type-aliases/execute-method).

---

**`deviceController`** `DeviceController` — required

Device controller responsible for media-device enumeration and selection. See [`DeviceController`](/docs/browser-sdk/v4/reference/interfaces/device-controller).

---

#### Returns

`Participant`

## **Properties**

**`id`** `string` — required

Unique member ID of this participant.

---

## **Accessors**

#### [addressId\$](/docs/browser-sdk/v4/reference/participant/address-id\$)

Observable of the participant's address ID.

#### [audioMuted\$](/docs/browser-sdk/v4/reference/participant/audio-muted\$)

Observable indicating whether the participant's audio is muted.

#### [autoGain\$](/docs/browser-sdk/v4/reference/participant/auto-gain\$)

Observable indicating whether auto-gain control is enabled.

#### [callId](/docs/browser-sdk/v4/reference/participant/call-id)

Call ID for this participant's leg, or `undefined` if not available.

#### [deaf\$](/docs/browser-sdk/v4/reference/participant/deaf\$)

Observable indicating whether the participant is deafened.

#### [denoise\$](/docs/browser-sdk/v4/reference/participant/denoise\$)

Observable indicating whether noise reduction is active.

#### [destroyed\$](/docs/browser-sdk/v4/reference/participant/destroyed\$)

Observable that emits when the instance is destroyed

#### [echoCancellation\$](/docs/browser-sdk/v4/reference/participant/echo-cancellation\$)

Observable indicating whether echo cancellation is enabled.

#### [handraised\$](/docs/browser-sdk/v4/reference/participant/handraised\$)

Observable indicating whether the participant has raised their hand.

#### [inputSensitivity\$](/docs/browser-sdk/v4/reference/participant/input-sensitivity\$)

Observable of the **conference-only** microphone energy/gate sensitivity level for this member.

#### [inputVolume\$](/docs/browser-sdk/v4/reference/participant/input-volume\$)

Observable of the participant's **server-side** microphone input volume as reported by the mix engine.

#### [isAudience](/docs/browser-sdk/v4/reference/participant/is-audience)

Whether the participant is an audience member (view-only).

#### [isTalking\$](/docs/browser-sdk/v4/reference/participant/is-talking\$)

Observable indicating whether the participant is currently speaking.

#### [lowbitrate\$](/docs/browser-sdk/v4/reference/participant/lowbitrate\$)

Observable indicating whether low-bitrate mode is active.

#### [meta\$](/docs/browser-sdk/v4/reference/participant/meta\$)

Observable of custom metadata for this participant.

#### [name\$](/docs/browser-sdk/v4/reference/participant/name\$)

Observable of the participant's display name.

#### [nodeId\$](/docs/browser-sdk/v4/reference/participant/node-id\$)

Observable of the server node ID for this participant.

#### [noiseSuppression\$](/docs/browser-sdk/v4/reference/participant/noise-suppression\$)

Observable indicating whether noise suppression is enabled.

#### [outputVolume\$](/docs/browser-sdk/v4/reference/participant/output-volume\$)

Observable of the participant's **server-side** speaker output volume as reported by the mix engine (FreeSWITCH channel write volume).

#### [position\$](/docs/browser-sdk/v4/reference/participant/position\$)

Observable of the participant's layout position.

#### [target](/docs/browser-sdk/v4/reference/participant/target)

The member's own RPC target triple. Throws `ParticipantNotReadyError` until the member's call context has been received.

#### [type\$](/docs/browser-sdk/v4/reference/participant/type\$)

Observable of the participant type (e.g. `'member'`, `'screen'`).

#### [userId\$](/docs/browser-sdk/v4/reference/participant/user-id\$)

Observable of the participant's user ID.

#### [videoMuted\$](/docs/browser-sdk/v4/reference/participant/video-muted\$)

Observable indicating whether the participant's video is muted.

#### [visible\$](/docs/browser-sdk/v4/reference/participant/visible\$)

Observable indicating whether the participant is visible in the layout.

## **Methods**

#### [destroy](/docs/browser-sdk/v4/reference/participant/destroy)

Destroys the participant, releasing all subscriptions and references.

#### [end](/docs/browser-sdk/v4/reference/participant/end)

Ends the call for this participant.

#### [mute](/docs/browser-sdk/v4/reference/participant/mute)

Mutes the participant's audio.

#### [muteVideo](/docs/browser-sdk/v4/reference/participant/mute-video)

Mutes the participant's video.

#### [remove](/docs/browser-sdk/v4/reference/participant/remove)

Removes this participant from the call.

#### [setAudioInputSensitivity](/docs/browser-sdk/v4/reference/participant/set-audio-input-sensitivity)

Adjusts the **conference-only** microphone energy gate / sensitivity level for this member.

#### [setAudioInputVolume](/docs/browser-sdk/v4/reference/participant/set-audio-input-volume)

Sets the **server-side** microphone volume on this participant's bridged call leg.

#### [setAudioOutputVolume](/docs/browser-sdk/v4/reference/participant/set-audio-output-volume)

Sets the **server-side** speaker volume on this participant's bridged call leg (FreeSWITCH channel write volume) — what this participant hears from the mix before it reaches their client.

#### [setMeta](/docs/browser-sdk/v4/reference/participant/set-meta)

Replaces custom metadata for this participant.

#### [setPosition](/docs/browser-sdk/v4/reference/participant/set-position)

Sets the participant's position in the video layout.

#### [toggleAudioInputAutoGain](/docs/browser-sdk/v4/reference/participant/toggle-audio-input-auto-gain)

Toggles automatic gain control on the audio input.

#### [toggleDeaf](/docs/browser-sdk/v4/reference/participant/toggle-deaf)

Toggles the deafened state (mutes/unmutes incoming audio).

#### [toggleEchoCancellation](/docs/browser-sdk/v4/reference/participant/toggle-echo-cancellation)

Toggles echo cancellation on the audio input.

#### [toggleHandraise](/docs/browser-sdk/v4/reference/participant/toggle-handraise)

Toggles the hand-raised state.

#### [toggleLowbitrate](/docs/browser-sdk/v4/reference/participant/toggle-lowbitrate)

Toggles the participant's low-bitrate mode.

#### [toggleMute](/docs/browser-sdk/v4/reference/participant/toggle-mute)

Toggles the participant's audio mute state.

#### [toggleMuteVideo](/docs/browser-sdk/v4/reference/participant/toggle-mute-video)

Toggles the participant's video mute state.

#### [toggleNoiseSuppression](/docs/browser-sdk/v4/reference/participant/toggle-noise-suppression)

Toggles noise suppression on the audio input.

#### [unmute](/docs/browser-sdk/v4/reference/participant/unmute)

Unmutes the participant's audio.

#### [unmuteVideo](/docs/browser-sdk/v4/reference/participant/unmute-video)

Unmutes the participant's video.

#### [updateMeta](/docs/browser-sdk/v4/reference/participant/update-meta)

Merges values into custom metadata (unlike setMeta which replaces).

> Represents a participant in a call.

## Docs

- [addressId$](https://signalwire.com/docs/browser-sdk/reference/participant/address-id$.md): Observable of the participant's address ID.
- [audioMuted$](https://signalwire.com/docs/browser-sdk/reference/participant/audio-muted$.md): Observable indicating whether the participant's audio is muted.
- [autoGain$](https://signalwire.com/docs/browser-sdk/reference/participant/auto-gain$.md): Observable indicating whether auto-gain control is enabled.
- [callId](https://signalwire.com/docs/browser-sdk/reference/participant/call-id.md): Call ID for this participant's leg, or undefined if not available.
- [deaf$](https://signalwire.com/docs/browser-sdk/reference/participant/deaf$.md): Observable indicating whether the participant is deafened.
- [denoise$](https://signalwire.com/docs/browser-sdk/reference/participant/denoise$.md): Observable indicating whether noise reduction is active.
- [destroy](https://signalwire.com/docs/browser-sdk/reference/participant/destroy.md): Destroys the participant, releasing all subscriptions and references.
- [destroyed$](https://signalwire.com/docs/browser-sdk/reference/participant/destroyed$.md): Observable that emits when the instance is destroyed
- [echoCancellation$](https://signalwire.com/docs/browser-sdk/reference/participant/echo-cancellation$.md): Observable indicating whether echo cancellation is enabled.
- [end](https://signalwire.com/docs/browser-sdk/reference/participant/end.md): Ends the call for this participant.
- [handraised$](https://signalwire.com/docs/browser-sdk/reference/participant/handraised$.md): Observable indicating whether the participant has raised their hand.
- [inputSensitivity$](https://signalwire.com/docs/browser-sdk/reference/participant/input-sensitivity$.md): Observable of the conference-only microphone energy/gate sensitivity level for this member.
- [inputVolume$](https://signalwire.com/docs/browser-sdk/reference/participant/input-volume$.md): Observable of the participant's server-side microphone input volume as reported by the mix engine.
- [isAudience](https://signalwire.com/docs/browser-sdk/reference/participant/is-audience.md): Whether the participant is an audience member (view-only).
- [isTalking$](https://signalwire.com/docs/browser-sdk/reference/participant/is-talking$.md): Observable indicating whether the participant is currently speaking.
- [lowbitrate$](https://signalwire.com/docs/browser-sdk/reference/participant/lowbitrate$.md): Observable indicating whether low-bitrate mode is active.
- [meta$](https://signalwire.com/docs/browser-sdk/reference/participant/meta$.md): Observable of custom metadata for this participant.
- [mute](https://signalwire.com/docs/browser-sdk/reference/participant/mute.md): Mutes the participant's audio.
- [muteVideo](https://signalwire.com/docs/browser-sdk/reference/participant/mute-video.md): Mutes the participant's video.
- [name$](https://signalwire.com/docs/browser-sdk/reference/participant/name$.md): Observable of the participant's display name.
- [nodeId$](https://signalwire.com/docs/browser-sdk/reference/participant/node-id$.md): Observable of the server node ID for this participant.
- [noiseSuppression$](https://signalwire.com/docs/browser-sdk/reference/participant/noise-suppression$.md): Observable indicating whether noise suppression is enabled.
- [outputVolume$](https://signalwire.com/docs/browser-sdk/reference/participant/output-volume$.md): Observable of the participant's server-side speaker output volume as reported by the mix engine (FreeSWITCH channel write volume).
- [position$](https://signalwire.com/docs/browser-sdk/reference/participant/position$.md): Observable of the participant's layout position.
- [remove](https://signalwire.com/docs/browser-sdk/reference/participant/remove.md): Removes this participant from the call.
- [setAudioInputSensitivity](https://signalwire.com/docs/browser-sdk/reference/participant/set-audio-input-sensitivity.md): Adjusts the conference-only microphone energy gate / sensitivity level for this member.
- [setAudioInputVolume](https://signalwire.com/docs/browser-sdk/reference/participant/set-audio-input-volume.md): Sets the server-side microphone volume on this participant's bridged call leg.
- [setAudioOutputVolume](https://signalwire.com/docs/browser-sdk/reference/participant/set-audio-output-volume.md): Sets the server-side speaker volume on this participant's bridged call leg (FreeSWITCH channel write volume) — what this participant hears from the mix before it reaches their client.
- [setMeta](https://signalwire.com/docs/browser-sdk/reference/participant/set-meta.md): Replaces custom metadata for this participant.
- [setPosition](https://signalwire.com/docs/browser-sdk/reference/participant/set-position.md): Sets the participant's position in the video layout.
- [target](https://signalwire.com/docs/browser-sdk/reference/participant/target.md): The member's own RPC target triple.
- [toggleAudioInputAutoGain](https://signalwire.com/docs/browser-sdk/reference/participant/toggle-audio-input-auto-gain.md): Toggles automatic gain control on the audio input.
- [toggleDeaf](https://signalwire.com/docs/browser-sdk/reference/participant/toggle-deaf.md): Toggles the deafened state (mutes/unmutes incoming audio).
- [toggleEchoCancellation](https://signalwire.com/docs/browser-sdk/reference/participant/toggle-echo-cancellation.md): Toggles echo cancellation on the audio input.
- [toggleHandraise](https://signalwire.com/docs/browser-sdk/reference/participant/toggle-handraise.md): Toggles the hand-raised state.
- [toggleLowbitrate](https://signalwire.com/docs/browser-sdk/reference/participant/toggle-lowbitrate.md): Toggles the low-bitrate mode for this participant's outbound media.
- [toggleMute](https://signalwire.com/docs/browser-sdk/reference/participant/toggle-mute.md): Toggles the participant's audio mute state.
- [toggleMuteVideo](https://signalwire.com/docs/browser-sdk/reference/participant/toggle-mute-video.md): Toggles the participant's video mute state.
- [toggleNoiseSuppression](https://signalwire.com/docs/browser-sdk/reference/participant/toggle-noise-suppression.md): Toggles noise suppression on the audio input.
- [type$](https://signalwire.com/docs/browser-sdk/reference/participant/type$.md): Observable of the participant type (e.g.
- [unmute](https://signalwire.com/docs/browser-sdk/reference/participant/unmute.md): Unmutes the participant's audio.
- [unmuteVideo](https://signalwire.com/docs/browser-sdk/reference/participant/unmute-video.md): Unmutes the participant's video.
- [updateMeta](https://signalwire.com/docs/browser-sdk/reference/participant/update-meta.md): Merges values into custom metadata (unlike setMeta which replaces).
- [userId$](https://signalwire.com/docs/browser-sdk/reference/participant/user-id$.md): Observable of the participant's user ID.
- [videoMuted$](https://signalwire.com/docs/browser-sdk/reference/participant/video-muted$.md): Observable indicating whether the participant's video is muted.
- [visible$](https://signalwire.com/docs/browser-sdk/reference/participant/visible$.md): Observable indicating whether the participant is visible in the layout.