It's interesting Herb, because the O/P implies that the pause is not related to the insertion or removal of the plug, it's related to whether the laptop is connected to an external amp or not, and "happens once or twice per song".

I'm still having difficulty in determining technically what could cause the 'pause'. The O/P states it's not a sound dropout, it's a pause... and then the playing continues.

The pause would almost certainly have to come from the source (the program), and would not buffered by the sound sub-system in the computer.

There's a lot of information missing, including does this only happen with BIAB or do other sound applications also do the same thing. This question was asked of the O/P, but no answer.

Trevor

BIAB & RB2024 Win.(Audiophile), Sonar Platinum, Cakewalk by Bandlab, Izotope Prod.Bundle, Roland RD-1000, Synthogy Ivory, Kontakt, Focusrite 18i20, KetronSD2, NS40M Monitors, Pioneer Active Monitors, AKG K271 Studio H'phones