The phrase "a loud round" is correct and usable in written English.
It can be used to describe a loud noise or sound that is circular in nature, such as applause or gunfire.
Example: "The audience erupted in a loud round of applause after the performance."
Alternatives: "a thunderous round" or "a boisterous round".
That prompted a loud round of applause from the Uruguayan journalists in the media theatre.
McCain returned to the Senate, a fresh scar above his left eye, to a loud round of applause from lawmakers.
During the ovations Mr. Audi and his designers received a loud round of boos from a segment of the audience, which seemed to miff Mr. Muti.
"We had a nice round of applause, actually, a loud round of applause," said Dr. James T. Goodrich, director of pediatric neurosurgery.
During pregame introductions, Chris Carpenter, the Brewers' main object of displeasure for his intensity and aggressiveness on the mound, and La Russa each drew a loud round of boos from the crowd.
Sen. Marco Rubio (R-Fla). vowed at a town hall forum last week to keep accepting political contributions from the gun rights group — and was met with a loud round of boos.
There was another eruption of booing, culminating in a louder round of "We Want Bernie!" chants.
I hereby call for a long, loud round of applause.
Fire off a nice loud round Watch the guests all hit the ground Oh, and that guy with the hair Reminds me of a billionaire.
He drew a long and loud round of applause when he agreed with a sentiment expressed previously by Dallas police chief David Brown: "We ask police to do too much," Obama said, "and we ask too little of ourselves".
— Alexa Some readers shared their own memories of booing, or hearing boos, at the theater: "The only time I have witnessed booing in the theater was when Mary Louise Parker bowed at the curtain call for her execrable 'Hedda Gabler.' It was an arrogant and hateful performance, and the loud round of boos she received (from a large percentage of the audience) was earned".
