OP25 (boatbod) -> Liquid Soap -> Ice Cast: Very high latency

[xtraorange]

Hello all-

I was able to successfully setup my RTL-SDR Blog v4 on a VM (hosted by proxmox on my small server cluster), feeding through liquidsoap to IceCast on another VM using docker. Resource wise nothing is pegging, so I don't think I'm choking anything.

Everything is working well now, except that I cannot seem to squash down the latency. It's running pretty consistantly around 30 seconds delay from the live broadcast.

I am 100% new to this, so I'm not sure what to expect here. I'm hoping for a near-live (within a second or two?) performance, but is that unrealistic? Because it's running from a VM, I've been having a hard time determining where the delay originates (since I can't listen to it live) before it's fed through the pipeline. I've done a fair amount of searching and experimenting with settings on liquidsoap and icecast, but I'm wondering if the problem is originating in OP25.

I can post configs or whatever else would be helpful - would love any wisdom you can provide here, even if it's just to reduce my expectations.

 

[wgbecks]

The approximate 30 second delay is inherent in the design of the Icecast server. You may be able to shave off a few seconds by disabling
burst-on-connect, but it's probably not worthwhile. You'll have to explore other technology options if it's your intent to reduce latency
to a minimum.

 

[dispatchgeek]

You might try routing your audio to Sonobus? I've had good luck with this.

SonoBus

www.sonobus.net