Visualization of the radiation of sound for selected devices

Registration and imaging of noise emitted by machines and devices allow to visualize of various sound parameters. Such images can be widely used in the assessment of the project, or to improvement existing machines. The appropriate techniques and measurement systems may be used for identification of primary noise sources. Created images are also a useful tool to verify the results of numerical simulations, that is why properly prepared visualizations can be widely used in industry. The article presents visualizations of noise for selected devices, obtained by means of two measurement methods, the first based on the measurement of acoustic pressure and the second based on the measurement of the acoustic particle velocity.