The Godzilla Roar is a vocal recording from movies. Godzilla's roar is a famous sound effect. Over the years, it has changed considerably, sounding different almost every time and having many variations for the different emotions.
The sound effects team originally tried to create Godzilla's roar by using animal roars that had been edited. They sampled all kinds of birds and mammals, but nothing seemed to be the right match for the reptile-like noises a monster like Godzilla would make. Akira Ifukube, who was the film's composer, proposed stepping away from using animal samples. He took a string off of his contrabass and rubbed it with gloves soaked in pine tar. The sound that came from it was used as Godzilla's roar. This roar would later be altered for use as the roar of other monsters in the Showa Era, including Varan, Baragon, and Gorosaurus. Godzilla's roar can be written in readable characters and has been done so in comics, and not only by a simple "roar." In Japanese, the official onomatopoeia for Godzilla's roar is "Gyaoon" (ギャオーン Gyaōn)--additional "o"s can be added to extend the roar. In the 1998 film, Sound Designer Scott Martin Gershin combined the Showa Godzilla roars with metal slides, trumpet sounds, and various pre-recorded animal sounds, such as those of elephants and leopards. Gary A. Hecker, Frank Welker, and Gershin himself provided additional vocals. Sound designers Erik Aadahl and Ethan Van Der Ryn created a new Godzilla roar from scratch for Legendary Pictures' 2014 reboot. They first tried the same glove-on-a-contrabass technique pioneered by Akira Ifukube, but found the results weren't quite right for the era of 12-channel IMAX theaters. Their breakthrough was metal friction. According to Aadahl, "Dried ice supercools certains types of metal, and it starts contracting and vibrating and produces this shrieking and bellowing." For the rumble at the end of the roar, they manipulated recordings of a potted plant raked across concrete. To capture how the roars would resonate in a city, they blasted them from the Rolling Stones' tour speakers in a Warner Bros. backlot, which could be heard from about three miles away.
Links:
https://soundeffects.fandom.com/wiki/Godzilla_Roar/Audio_Samples
