via Innerclock Systems
"Grid-Lock is a useful utility when used in conjunction with Sync-Gen II allowing accurate delay/offset calculation between your externally synchronised hardware and the DAW quantise grid with minimal fuss.
There are two separate causes of this delay:-
1: External Hardware Start Lag – Slave Sync External Start Lag is the time it takes for any hardware sequencing device to respond to external tempo-sync and begin playback.
2: DAW/Audio Interface Driver Processing Delay – All computer audio interfaces and audio software processing applications take a certain amount of time to get sound in and out of the computer. Depending on the computer specification and hardware audio interface driver design, you will have various options to adjust this processing time using the audio driver buffer value – less means faster real-time I/O processing but this pushes the computer to prioritise audio throughput above other tasks and it will eventually trip over itself and start to glitch and drop audio. Larger Buffer settings work well for mix down where real-time soft synth playing latency is less of an issue. It also means large track counts and heavy plug-in use will not compromise the audio playback. However, there will always be some DAW I/O processing delay and getting an accurate value is indispensable for creating rhythmically tight productions."
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