If you've ever attended batting practice at a MLB stadium, you probably heard loud music blaring through the stadium sound system, just like you would at any NFL or NBA game. If you watched the Nationals batting practice in Miami on Wednesday, you heard something a little different.

Went back through BP tape and found the fart noise during #Nats BP. This is not a joke. pic.twitter.com/Q7dweOdk19 — HoldenKushner (@Holdenradio) July 29, 2015

Yup, that's right. Instead of playing music while the Nats took BP, the Marlins decided to let some fart noises fly. Maybe they were real farts, we will never know. Either way, they were so loud they even echoed! Seriously, that isn't a fake video.

Now not only are the Marlins not playing music during Nats BP, loud fart noises are coming through the speakers. I swear, I'm not kidding. — Dan Kolko (@masnKolko) July 29, 2015

Later, after the farting had commenced, the Marlins sound team took a different strategy.

Fart noises have now been replaced by Kenny G-ish stuff. Beginning to think they borrowed @JamesWagnerWP's iPod. — Chelsea Janes (@chelsea_janes) July 29, 2015

Fart sounds and Kenny G style music. That's how the Marlins roll.

The Nationals eventually tried to solve the problem by bringing a portable speaker from the clubhouse and putting it next to the batting cage.

That on the far right is a speaker the Nats have brought onto the field. They're taking matters into their own hands. pic.twitter.com/SduJdOvCKu — Dan Kolko (@masnKolko) July 29, 2015

The only question now is whether playing fart sounds during an opponents batting practice is against the many unwritten rules of baseball.