GOSHEN, N.Y. — The judge in the case of a woman accused of killing her fiancé during a kayak outing will allow jurors to watch virtually all of an 11-hour police interrogation video in which the defendant, Angelika Graswald, makes a series of incriminating statements.

Ms. Graswald has been awaiting trial here in the Orange County jail for 19 months. Since the summer, County Court Judge Robert H. Freehill has postponed several pretrial conferences. But on Friday, he scheduled the start of jury selection for Feb. 14.

The decision was a blow to the defense since Ms. Graswald’s lawyer had vigorously sought to keep the police interrogation and other statements out of evidence. Neither side is allowed to discuss the case.

Ms. Graswald was charged with second-degree murder in April 2015, nearly two weeks after her fiancé, Vincent Viafore, 46, drowned when his kayak capsized. The couple, who shared an apartment in Poughkeepsie, N.Y., had gone kayaking together on the Hudson River, paddling in the cold, choppy water to Bannerman Island.