Human Factor Balance Under
the Influence of Variable Sound
Frequency and Orientation
Diana Cotoros, Ionel ¸
Serban, Corneliu Drug˘ a, and Anca Stanciu
Abstract Our modern world is inevitably a permanent source of sounds of different
physical characteristics, some of them beneficial for the human factor, even with
healing properties, and some becoming part of the growing environmental stress,
better known as noise pollution. Besides the usual negative effects like hearing problems, neurological diseases, or psychological issues, some types of noise may lead
to sudden loss of stability according to their wave length, frequency, distance from
the human factor, location, etc. The present paper aims at illustrating by practical
experiments, using healthy subjects in a controlled environment, the influence of
sounds with variable frequency, occurred in different locations in a random manner,
upon the stability of human factor. Loss of stability during various activities interrupted by random and variable noise may endanger the health or even the life of
the affected person. In order to determine the degree of stability loss and the types
of sounds inducing a higher influence upon the human body, an experimental setup
was accomplished at the Advanced Mechatronic Systems Laboratory, consisting
mainly of a Kistler force platform, laptop for data acquisition, and a sound generator
with speakers. The acquired data were analyzed and conclusions drawn to be able
to prevent work accidents or other unfortunate situations that might lead to health
endangerment.
1 Introduction
People are subjected to various types of sounds every second of their lives, especially due to the recent technological progress. Sounds may come either from nature
(wind, thunderstorms, waterfalls, animal noise, etc.) or they are produced by human
activities (industry, medical devices, explosions, transport, and so on). Some of these
sounds may have a beneficial influence upon human health (music, sea waves, and
D. Cotoros (B) · I. ¸
Serban · C. Drug˘ a · A. Stanciu
University Transilvania of Brasov, Brasov, Romania
e-mail: dcotoros@unitbv.ro
© Springer Nature Switzerland AG 2021
N. Herisanu and V. Marinca (eds.), Acoustics and Vibration of Mechanical
Structures—AVMS 2019, Springer Proceedings in Physics 251,
https://doi.org/10.1007/978-3-030-54136-1_29
297
the Influence of Variable Sound
Frequency and Orientation
Diana Cotoros, Ionel ¸
Serban, Corneliu Drug˘ a, and Anca Stanciu
Abstract Our modern world is inevitably a permanent source of sounds of different
physical characteristics, some of them beneficial for the human factor, even with
healing properties, and some becoming part of the growing environmental stress,
better known as noise pollution. Besides the usual negative effects like hearing problems, neurological diseases, or psychological issues, some types of noise may lead
to sudden loss of stability according to their wave length, frequency, distance from
the human factor, location, etc. The present paper aims at illustrating by practical
experiments, using healthy subjects in a controlled environment, the influence of
sounds with variable frequency, occurred in different locations in a random manner,
upon the stability of human factor. Loss of stability during various activities interrupted by random and variable noise may endanger the health or even the life of
the affected person. In order to determine the degree of stability loss and the types
of sounds inducing a higher influence upon the human body, an experimental setup
was accomplished at the Advanced Mechatronic Systems Laboratory, consisting
mainly of a Kistler force platform, laptop for data acquisition, and a sound generator
with speakers. The acquired data were analyzed and conclusions drawn to be able
to prevent work accidents or other unfortunate situations that might lead to health
endangerment.
1 Introduction
People are subjected to various types of sounds every second of their lives, especially due to the recent technological progress. Sounds may come either from nature
(wind, thunderstorms, waterfalls, animal noise, etc.) or they are produced by human
activities (industry, medical devices, explosions, transport, and so on). Some of these
sounds may have a beneficial influence upon human health (music, sea waves, and
D. Cotoros (B) · I. ¸
Serban · C. Drug˘ a · A. Stanciu
University Transilvania of Brasov, Brasov, Romania
e-mail: dcotoros@unitbv.ro
© Springer Nature Switzerland AG 2021
N. Herisanu and V. Marinca (eds.), Acoustics and Vibration of Mechanical
Structures—AVMS 2019, Springer Proceedings in Physics 251,
https://doi.org/10.1007/978-3-030-54136-1_29
297