Sending to another Snapserver

If you already run a Snapcast server, on a NAS or Home Assistant for example, Encore can feed Soloist's audio to it as well as to the built-in one. Set it up under Settings → Snapcast → External Snapcast server. Changes apply as soon as you save, with no restart.

A Snapserver can't relay a stream to another server, so the external server takes the audio through its own tcp:// stream source: raw PCM, 48000 Hz, 16-bit, stereo.

Choosing a mode

Mode	Who connects	Use when
Push	Encore connects to the server	The server is reachable from the Pi, including across NAT or a VPN. Outbound only.
Pull	The server connects to Encore	The server can reach the Pi but not the other way round.

The console shows the exact source = line to add to the other server, filled in with your settings.

Push

Set Mode to Push, and enter the Server host and Server port. On the external server, add a TCP source in server mode (the default) to snapserver.conf:

source = tcp://0.0.0.0:4953?name=Spotify&sampleformat=48000:16:2

If the connection drops, Encore reconnects with backoff, from half a second up to 30 seconds.

Pull

Set Mode to Pull and choose a Listen port. On the external server, add a TCP source in client mode pointing at your Pi:

source = tcp://encore.local:4953?name=Spotify&mode=client&sampleformat=48000:16:2

Status

The section shows whether it's connected (push) or how many servers are connected (pull), along with the last error.

Limitations

• Best effort. While the other server is disconnected, that audio is dropped rather than queued. A server more than about 1.4 seconds behind has chunks dropped, so a slow link can't fill the Pi's memory.
• Docker only, like all audio outputs.
• Sync is per server. Rooms on the external server stay in sync with each other, but not with rooms on Encore's built-in Snapcast.

audio:
  external_snapcast:
    mode: "push"        # off | push | pull
    host: "nas.lan"     # push only
    port: 4953