56. Noise, ultrasound and infrasound in production, industrial vibrations – hygienic characteristics, biological effects, prevention.
Introduces the audible range of human hearing, roughly 20 Hz to 20 kHz, and defines infrasound as sound below 20 Hz and ultrasound as sound above 20 kHz. The note is brief and does not yet cover the hygienic characteristics, biological effects or prevention named in the title.
Topic 56 of 78 in the MU Sofia syllabus for Hygiene and Occupational Medicine (Medicine, Year 4). The free AceMed note covers it in 1 section, about 29 words (1 min of reading), with 15 flashcards.
In this note
Noise, ultrasound and infrasound in production, industrial vibrations – hygienic characteristics, biological effects, prevention.
Noise, ultrasound and infrasound in production, industrial vibrations – hygienic characteristics, biological effects, prevention.
Humans can hear sounds in the frequency range of 20 Hz to 20 kHz.
Sounds below 20 Hz are called infrasound, and sounds above 20 kHz are called ultrasound.
Read the full note free
The whole note is free with an AceMed account, with its 15 flashcards. Premium adds flashcard recall, highlights and Ask AI.
