> 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. # setAudioOutputVolume > 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. ```ts setAudioOutputVolume(value): Promise ``` 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. For local playback volume (the `