Best practices for calculating latency for U-SYNC?

Any questions about the Software used with the Nome (U-SYNC, Firmware Update, etc.)
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DryArmadillo
Posts: 8
Joined: 01 Jun 2024, 23:29

Best practices for calculating latency for U-SYNC?

Post by DryArmadillo »

 Hi all - I am attempting to record perfect audio clips in Ableton from drum beats playing into my audio interface from my external Roland MC-101 groovebox/sequencer.

- I'm using Ableton with the U-SYNC plugin.
- The audio from my Roland MC-101 groovebox is routed to the input of my audio interface.
- I have an Audio Track in Ableton recording the audio interface input

The problem: Once the Ableton clip records the drum beat sample, it will play back with either the very start of the drum beat cut off or it will start a little late (on the Ableton clip that was recorded). I end up messing around with a lot of "trial and error" for the U-SYNC setting to shift it's latency by anywhere from 20ms - 36ms, depending on the specific Ableton project I am working on.

My current method: I try recording in arrangement view, then highlighting the amount of latency with my cursor to determine the approximate amount of milliseconds that I will need to adjust in the U-SYNC "shift" settings. But this method is far from perfect and as mentioned, I end up making a lot of minor adjustments to get my sample (Ableton clip) recorded as accurately as possible.

Does anyone have a best practice method for determining the right amount of latency you're dealing with when trying to sample hardware sewuencers into Ableton audio tracks?

I wasn't able to find an anything on the forums for this but I remember seeing something related to this a while ago before I started trying to use the Midronome in this way and ran into this specific problem.
Simon
Posts: 1110
Joined: 09 Jan 2022, 22:08

Re: Best practices for calculating latency for U-SYNC?

Post by Simon »

Hi :)

The short answer is: you should not need to. There might be a small latency (in most cases +/- 1ms) that comes and goes, for various reasons. But a huge latency like that implies there is something changing within your setup.

1 - a very dumb thing, but just to be sure: your MC-101 is syncing to the Nome via MIDI, correct?

2 - we need to double-check all Ableton settings. Please double-check with what is written in the Nome manual, in both the Ableton and troubleshooting sections.

3 - does this latency changes drastically from one recording to another, without you changing anything on your setup, in Ableton, or on your OS? If it does not, please try to identify what makes it change.

Let us know how it goes :)
Simon
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