---
title: "Set member sound-card volume"
method: POST
path: "/api/pipewire/control/groups/{id}/members/{cardId}/volume"
tags: ["pipewire"]
---

# Set member sound-card volume

`POST /api/pipewire/control/groups/{id}/members/{cardId}/volume`

Sets the volume (0-150%) of an individual sound card within an output group, addressed by its stable ALSA card id (e.g. `S3`). Applied live to the member filter-chain sink and persisted.

## Request body

- object

## Response `200`

Member volume applied and persisted

- object

## Other responses

- `400` — Missing 'volume'
- `404` — Card not found in group
- `409` — PipeWire backend not active

## Changes

- **2026-05-17** `b06d8ae6f3f2` — 1 info
  - endpoint added
- **2026-05-13** `34a577bdabff` — 1 breaking
  - api path removed without deprecation

[Change history](https://skmtc.dev/falconchristmas/apis/fpp-api/changes/api/pipewire/control/groups/:id/members/:cardId/volume/post.md)

---

[API](https://skmtc.dev/falconchristmas/apis/fpp-api.md) · [All operations](https://skmtc.dev/falconchristmas/apis/fpp-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/falconchristmas/fpp-api/revisions/2d744b175449/schema)