Sonobus: Open-source app for low latency peer-to-peer audio

Re:Sonobus: Open-source app for low latency peer-to-peer audio by earthscienceman on Monday February 15, 2021 @09:08PM (#26150130)

I'll chime in with the same intense positivity. In the early days of the quarantine I set up a "walk in theater" on my property where I wanted friends to be able to watch the film without bothering my neighbors with a massive stereo system. The natural option was headphones and I chose between setting up an FM transmitter and trying to get everyone to buy a walkman... or... trying to come up with a network streaming solution. I found the open source implementation of VBAN and tried to write a python script to launch the server and manage finding new connections. It failed absolutely miserably and I ended up setting up an amplified audio system in the rain, much to the trouble of my neighbors also.

Needless to say, I love this. The only thing that's stopping it from being truly wonderful is an Android app <3

[ Parent | on HN ]

Re:Sonobus: Open-source app for low latency peer-to-peer audio by sonosaurus on Monday February 15, 2021 @10:41PM (#26150671)

There actually is an Android version in beta: https://play.google.com/store/apps/details?id=com.sonosaurus...

Needs some work still...

[ Parent | on HN ]

Re:Sonobus: Open-source app for low latency peer-to-peer audio by hiq on Tuesday February 16, 2021 @03:07AM (#26151895)

Is the source available somewhere?

[ Parent | on HN ]

Re:Sonobus: Open-source app for low latency peer-to-peer audio by sschueller on Tuesday February 16, 2021 @05:16AM (#26152608)

Appears to be in the same repository: https://github.com/essej/sonobus/tree/main/Builds/Android

https://github.com/essej/sonobus/tree/main/Source/android

[ Parent | on HN ]

Re:Sonobus: Open-source app for low latency peer-to-peer audio by MayeulC on Tuesday February 16, 2021 @11:03AM (#26155148)

Isn't snapcast the de-facto solution for that kind of use-case?

[ Parent | on HN ]

Re:Sonobus: Open-source app for low latency peer-to-peer audio by radus on Tuesday February 16, 2021 @12:28PM (#26156333)

This would be my pick as well. I've researched this in the context of a silent disco, and tried an Airplay based solution described here: https://chrislivengood.net/the-do-it-yourself-silent-disco/, but snapcast just works.

[ Parent | on HN ]

Re:Sonobus: Open-source app for low latency peer-to-peer audio by earthscienceman on Tuesday February 16, 2021 @04:25PM (#26158998)

Yeah. But the latency I had with snapcast was too much for video syncing. Maybe I had some issue other people don't have though. If you just want all audio sinks synchronized, then snapcast is great because latency doesn't matter all that much. But. If you want the words you're hearing to match moving of lips on screen.... then you're in a different realm entirely.

[ Parent | on HN ]

Re:Sonobus: Open-source app for low latency peer-to-peer audio by radus on Tuesday February 16, 2021 @04:41PM (#26159145)

That makes sense - I believe by default snapcast has a 1000ms buffer.

I wonder if you can't grab the latency correction factor from snapcast in real-time, and somehow apply it to you video stream as well? This has been raised before it seems [1], and in another issue, the snapcast author recommends looking at RTP based streaming instead of snapcast [2].

Seems like snapcast may not be ideal for this after-all :)

[1] https://github.com/badaix/snapcast/issues/57

[2] https://github.com/badaix/snapcast/issues/731#issuecomment-7...

[ Parent | on HN ]

Re:Sonobus: Open-source app for low latency peer-to-peer audio by MayeulC on Wednesday February 17, 2021 @06:01AM (#26165046)

I think parent says that +/-200ms is acceptable for snapcast, but unacceptable for lip-syncing.

I am not sure snapcast can't sync down to a few ms. If so, the issue would be syncing video with the audio clients, which certainly sounds feasible if integrated in the video player. That's what jellyfin does: https://github.com/jellyfin/jellyfin-web/pull/1011 (I tried to help a bit with that one).

[ Parent | on HN ]