[PD] chronometer + metronome that syncs multiple Android/iOS devices over network?

enrike altern2 at gmail.com
Wed Mar 6 10:25:24 CET 2019

thanks to everyone for the answers. this looks interesting and I will 
start exploring here. Ableton link seems like another option too

19/3/6 04:13(e)an, Chris McCormick igorleak idatzi zuen:
> Hello Enrike,
> On 6/3/19 12:18 am, enrike wrote:
>> We need a chronometer that runs in sync in multiple devices at the 
>> same time.
> SyncJams might work for you:
> https://github.com/chr15m/SyncJams
> The algorithm it uses is tolerant of adverse network conditions. All 
> devices run their own internal clock and the clocks converge on a 
> consensus "current tick".
> The algorithm is very simple: every device broadcasts its current tick 
> over the network. If a device receives a tick which is higher & earlier 
> than it expected it immediately resets its own clock to that new timing.
> What this means in practice is the smallest (i.e. best) point-to-point 
> ping time between any two participating patches is the closest that the 
> clocks will get in sync. On a WiFi LAN this is generally on the order of 
> 1 to 3 milliseconds which is close enough for most musical applications. 
> In my experience devices converge on that value quite quickly after 
> joining the network.
> Here's a video of Chris Rice aggressively changing the BPM from which 
> the devices manage to recover after a second or two:
> https://www.youtube.com/watch?v=yNvD-KQhR9k
> Here are two Android devices syncing:
> https://www.youtube.com/watch?v=Z5tlEZwttBM
> I've been planning to revisit the project to simplify it and port to 
> Supercollider etc. for some time but who knows if I'll ever get around 
> to that.
> Cheers,
> Chris.

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