The NFL is investigating the Atlanta Falcons’ use of artificial crowd noise in the Georgia Dome over the past two seasons, sources told ESPN’s Adam Schefter.

According to Sunday’s report, the offense is expected to result in discipline, with the Falcons being fined and possibly losing a draft choice.

“We were informed during the season that the league office is looking into crowd noise during our games,” a Falcons team spokesman said. “We have cooperated fully with them, and we’re awaiting the outcome.”

The report said the Falcons have been accused of piping in the noise while the opposing team was huddling to call its play.

The Falcons went 3-5 at the Georgia Dome this season, including being routed by the Carolina Panthers 34-3 in the season finale for the NFC South Division title.