pipewire
Set input-group member volume
Sets the volume (0-100%) of a member within an input group (mix bus), addressed by its zero-based member index. Applied live to the member loopback via channelmix and persisted. Note: the primary fppd stream's volume is governed by fppd itself, not a loopback.
post/api/pipewire/control/input-groups/{id}/members/{memberIndex}/volume
Request body
object required
Response
Member volume applied and persisted
object required