PHILADELPHIA (CBS) — Brandon Graham is in his seventh NFL season and has played in plenty of hostile environments.

However, the loudest stadium Graham has ever played in came before he became a pro, during his time at Michigan.

“I’ve told people the loudest place I’ve ever played was Penn State,” Graham told Angelo Cataldi and the 94WIP Morning Show on Wednesday. “That was one time where I was standing next to somebody and I was talking to them and I was just like, wow I had to really yell for him to hear me.

“White out. The white out. Ah, it was crazy. So that was the best place I’ve played as far as how loud it was.”

Related: UPSET: Penn State Topples No. 2 Ohio State 24-21

Graham and the Eagles head to Seattle to face the 6-2-1 Seahawks at CenturyLink Field on Sunday, arguably the NFL’s toughest stadium to play in.

“I’ve only been there one time and that was the year 2012, when Jason Babin and those guys were out there playing a lot,” Graham said when asked about playing in Seattle. “I was playing a little bit, but it wasn’t like as much that game. It was loud. It was real loud.”

Currently in his 5th season, Russell Wilson has lost 5 career games at home, none by more than 7 points. That includes the playoffs (4-0). — Andrew Porter (@And_Porter) November 15, 2016

Listen: Brandon Graham on the 94WIP Morning Show

The Eagles love playing at home. They’re 4-0 at Lincoln Financial Field and have allowed just 9.5 points per game at home this season. Graham, who says the crowd definitely plays a large role in a football game, has four of his team leading five sacks at home.

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“Yeah, oh yeah. That definitely affects the game,” Graham said of a loud atmosphere. “That affects everything as far as their timing — some people might not hear the calls, depending on the yelling.”