This System of Augmented Reality and 3D Sound Can Revolutionize Schools

Does 3D sound fit in the classroom as an innovative methodology? Researchers have proposed to demonstrate that sound can be a powerful pedagogical resource in the classroom.

Specifically, this has been the objective of The unconscious listening, a project promoted by researchers at the Loyola AndalucíaUniversity, which has had the collaboration of the Teaching School of Úbeda, the University of Seville and companies such as BQ.

"We were wondering what effects (sound) can have on a receiver as sensitive as children are. And also, how could we take advantage of it to improve learning, "explains Francisco Cuadrado, principal investigator of the project.

The answer to these questions, according to the conclusions obtained, show that sound, especially 3D sound, manages to increase the attention and immersion of children in the classroom.

For the field study, the research was attended by 300 Primary and Secondary students who were given a series of multimedia content - a videogame, a fiction podcast where a story and an audiovisual sequence are told - with different variables sounds that ranged from a mix of stereo sound to one of 3D sound. This type of sound allows you to hear the sound in an enveloping way with normal headphones.

Thus, when in a scene of the audiovisual sequence - which showed a recreation of the German troops attacking Malta during World War II -, military planes came from behind in the image, the children listened to the engines from that direction. "The shots, the voices ... everything was recreated sonoramente to have the sensation of being inside the history", says Francisco Cuadrado.

The results showed that by enhancing an immersion in history through sound, at the same time, "the impact of emotion and the attention levels of minors were enhanced".

The difference also between the emotional response and the level of attention aroused by 3D sound versus stereo is clearly significant. "The scores in English of the children who participated in the research were significantly better in those who heard the 3D story of those who had done it in stereo," Cuadrado points out.