> Fetch clean Markdown by appending `.md` to any page URL under https://signalwire.com/docs or requesting it with the HTTP header `Accept: text/markdown`. The root index at https://signalwire.com/docs/llms.txt lists the available documentation indexes. # setOutputVolume > setOutputVolume method for the RoomSession class. ### setOutputVolume * **setOutputVolume**(`params`): `Promise` Sets the output volume level (e.g., for the speaker). You can use this method to set the output volume for either yourself or another participant in the room. #### Parameters **`params`** `object` Object containing the parameters of the method. --- **`memberId`** `string` Id of the member to affect. If omitted, affects the default device in the local client. --- **`volume`** `number` Desired volume. Values range from -50 to 50, with a default of 0. --- #### Returns `Promise` #### Permissions * `room.self.set_output_volume`: to set the speaker volume for yourself. * `room.member.set_output_volume`: to set the speaker volume for a remote member. You need to specify the permissions when [creating the Video Room Token](/docs/apis/rest/video/room-tokens/create-room-token) on the server side. #### Examples Setting your own output volume: ```javascript await roomSession.setOutputVolume({ volume: -10 }); ``` Setting the output volume of another participant: ```javascript const id = "de550c0c-3fac-4efd-b06f-b5b8614b8966"; // you can get this from getMembers() await roomSession.setOutputVolume({ memberId: id, volume: -10 }); ``` > setOutputVolume method for the RoomSession class.