Last month the people at “Guinness” posted audio

 of the “lowest vocal note” sung by a female.  This time it’s the “loudest mezzo-soprano vocal note” from a female.

It was done by a Bulgarian singer named Smilyana Zaharieva and the vocal note peaked at 113.8 decibels, which is the same volume as a rock concert.  She had to stand 8.2-feet from the sound meter, and hold the note for five seconds.