Park Geun-hye /Newsis

President Park Geun-hye sounded "2.5 times" more excited than usual during a nationally televised address on Monday, an acoustics boffin claims.

Park was urging the National Assembly to pass her government restructuring bill.

Bae Myung-jin, a professor of electronic engineering at Soongsil University, on a chat show on TV Chosun on Tuesday explained that Park usually sounded calm and stable as a presidential candidate, but during Monday's address "she was about 65 percent agitated."

Bae says he compared the vibration of her vocal chords on Monday with those in a TV debate amongst presidential candidates at the end of last year.

"That level is often found among people who are letting out pent-up anger and frustration," he added.