Technological progress have gradually affected all aspects of human life, and it hit also the forestry sector. Newly introduced methods and technologies have brought a reduction of onerous, increasing productivity and entirely new risks arising from the operation of innovative forestry techniques. This work deals with just one of a number of risks arising from work in the forest and it's subject is a noise that is inherent in the use of technology. Short and also a long term noise exposure negative effects the human body and it can cause irreversible damage or even death. This work is focused on the effect of exposure to noise in the cabin of a harvester with emphasis on the physiology and human psychology with regard to occupational safety and health. The thesis also analyzes the stress in the workplace, stress, emerging and potential physiological and mental reactions to it. The work results during physiological functions of the persons who attended the measuring apparatus using Biofeedback 2000 x-pert for exposure to two different acoustic stimuli. In this work, inter alia the results of a test of attention and self probands obtained by subjective scales, which refine the findings of their current state of mind before and after exposure to the selected sounds.