New world record: Australian Joseph McGrail-Bateup’s scream reaches 122.4 decibels and surprises sound science

A new chapter in the history of human feats of voice was recently written with the confirmation of an impressive record. Joseph McGrail-Bateup, a native of Canberra, Australia, now holds the title of the loudest person in the world, recording a scream of 122.4 decibels. The brand surpasses the previous one and highlights human vocal capacity at extreme levels.

The achievement represents a significant advancement in the record books, especially considering the logarithmic nature of the decibel scale. McGrail-Bateup, who serves as a herald in his community, managed to produce a sound equivalent to that of a jet engine in full operation, demonstrating a vocal power rarely seen.

The strength of decibels: understanding the new sound level

The figure of 122.4 decibels may seem like a small increase over the previous record, which was 121.7 dB, set by Annalisa Flanagan, a teacher from Belfast. However, the decibel scale is logarithmic, meaning that small numerical differences represent large variations in sound intensity.

To give you an idea, an increase of just 3 decibels already doubles the sound energy. The McGrail-Bateup mark, although numerically close to the previous one, represents an increase of about 17% in perceived sound energy. This noise level is comparable to being close to an ambulance siren, an airplane engine running or a chainsaw being turned on, highlighting the impact of your vocal power.

## The physical effort to achieve the loudest sound

The attempt to break the record was not a simple task and demanded a lot from the record holder. McGrail-Bateup revealed that there is no way to train specifically for an event like this, and it is necessary to save the effort for the exact moment of the performance. He needed seven attempts just to pronounce the word “now”, the word chosen for the challenge.

The impact on his voice was immediate and lasting. After the attempts, Joseph described his voice as “hoarse” and “terrible” for the next few days. This report highlights the tremendous physical cost involved in producing a sound of such intensity, directly affecting the vocal cords and hearing health, which he acknowledges has been compromised in the process.

Records and recognition from Guinness World Records

Guinness World Records recognized Joseph McGrail-Bateup with the title of “loudest scream by a (male) individual”. This distinction allows Annalisa Flanagan to maintain her record in the women’s category, a decision Joseph welcomed. The division by gender ensures that both talents are properly celebrated in their respective fields.

Despite the impressive human footprint, the McGrail-Bateup scream is far from the most powerful noises ever produced by humanity. The Tsar Bomba, a Soviet nuclear weapon tested in 1961, for example, generated a sound estimated at 224 decibels. This historic event released acoustic energy 14.5 billion times greater than the record holder’s scream, putting human achievement in a broader perspective on the limits of sound.

A life of record-breaking and multiple talents

This is not the first time Joseph McGrail-Bateup has achieved a notable feat. At 58 years old, he already had a history of diverse and unusual skills. In 2019, Joseph had broken the record for shooting 10 arrows in the shortest time, accomplishing the feat in just 60.03 seconds.

However, his archery record was surpassed in less than a year by a seven-year-old boy, who reduced his time by 11.4 seconds. In 2023, Missouri’s Casey Wilhelm pulverized the mark, firing all 10 arrows in 39.53 seconds. This sequence of surpassing her previous record highlights the unique difficulty of her most recent vocal achievement, which proves to be much more resistant to being beaten.