Setting DAW Preferences Most DAWs allow the user to select their desired hardware buffer size. This set-up step is very important, as it may have a significant impact on latency and therefore the success of a session. As a general rule for recording, engineers must aim to keep the buffer size at a low number of samples to ensure that signals can reach the DAW and leave to be subsequently monitored with a minimum of delay. During mixing, buffer sizes should normally be increased in order to allow the DAW to manipulate and sum signals with no insufficient processing power related problems (here latency is not an issue).