Optionalmeta: Record<string, any>OptionallidUserJid: stringOptionaldeviceJids: string[]Optionalopts: Record<string, any>Swap what the call is playing WITHOUT hanging up: a file path/URL,
{ data: Buffer, ext }, a lavfi: graph, or "silence". Returns true
when a live decoder was swapped, false when audio capture has not
started yet (the source is remembered for when it does).
A live (or recently ended) voice/video call. Emits 'audio' with PCM chunks.