BrainModular

Hello!

I was wondering how people were doing with sync of external gear nowadays?
I am using an Intellijel uMidi interface for my modular setup, using Ableton on 16th (96ppm) the clock does fluctuate.
Although it fluctuates it is always around the target tempo.

It seems so far in my experience that when using Usine, that the end tempo is running about 10 BPM higher than the actual clock.
Has anyone else experienced this? I was curious if it was some latency error correction, etc... but I am not sure as it doesn't to sync as desired.

-s

didn't try with external gear, but if can help debug, here syncing ableton to usine midi clock out, i get the right tempo. it of course takes slight time to stabilize on changes and start (good old shitty midi sync from the 80s^^) .. but once stabilized, deviation is < 0.05 bpm.

might be wrong, but maybe the hardware estimation is less precise averaging less 'clock/taps'
and since a given tempo doesn't fit and integer numbers of usine blocs, if you use patch midi out notes to sync, you may fall 'inside' a bloc at the events, (ie given a tempo, the note should be send out at position sample 120, but the bloc resolution being 128, the note will be sent out 8 samples late ) so a rounding occur, making it faster or slower received by the hardware.
id give a shot with very small block sizes that decrease the drift/rounding.
or try 161.50 usine bpm just by curiosity/debug with a power2 asio buffer size either (32,64,128,256). it would say if problem relate to this. do you still read like 170?
, or do you sync using midi clock out rather than notes?

I use MIDI Beat Clock Sync to the Intellijel, which in-turn has 16th clocking at 96ppm.
I run this to a TipTop Trigger Riot which is where I am reading the external BPM received.

I will have to do some block size adjustments etc to see what happens, just thought it was odd that almost 10 BPM higher than reported in Usine.
In respects to other DAW, I get same the settle-time. But as you said it locks on and stays at the desired tempo.

-s