Recording gets automatically shortened by few milliseconds at the start

[Marcin Marszalek]

Hello, 

I am trying to record some audio tracks via Zoom Livetrak L12 into Cakewalk by Bandlab. 

I have set up 5 audio tracks and tested them on 4 bars with a punch in and out. When the drummer starts, I can see the waveform progressing perfectly in line with the click however when I stop the track, the recording gets pushed back by a couple of milliseconds "eating" the first note which in this instance is a kick drum. 

It took me a while to figure out it was a system or gear issue as my first point of call was to accuse the drummer (my 11 year old son) of playing out of time and being late to the click 😁 

The clocks of both the PC and Livetrak are set to 44.1kHz, i have updated the drivers and firmware, i am not running any plugins during the recording process and I can physically see the waveform being pushed back when I hit the stop buton

Any help would be appreciated as i am slowly beginning to loos my mind.

 Many thanks in advance for any responses

[David Baay]

The recording is likely being over-compensated for record latency due to the driver mis-reporting the value (in samples) to Sonar. You will need to determine the appropriate a negative offset to be entered as Manual Offset under Preferences > Audio > Sync and Caching. The best way to do this is by temporarily disabling the Use ASIO Reported Latency checkbox (zeroing any Manual Offset that might already be entered) and using a utility like CEntrance Latency Tester to measure the Actual round-trip latency via a patch cable looping an output back to an input. Then subtract the Reported value from the Actual value to get the Manual Offset (again, this will be negative in your case because the driver is over-reporting the latency). Enter that value and re-enable User ASIO Reported Latency, and you should be in business.

This is a newer utility that does the same with a nicer, more flexible interface than CEntrance:

https://oblique-audio.com/rtl-utility.php

Edited March 18 by David Baay