TP - Primo - Soundproofing

Excerpts from Vocational High School 2nd Grade:
CME 3
How to isolate a room from noise?
Measure the period, calculate the frequency of a pure sound.
Measure the level of acoustic intensity using a sound level meter.
Produce a sound of a given frequency using a function generator and a loudspeaker.
Classify sounds from the lowest to the highest, knowing their frequencies.
Verify the decrease in intensity based on distance.
Experimentally compare the sound attenuation obtained with different materials or a noise-canceling device.

HS 3
Should we protect ourselves from sounds?
Verify the decrease in acoustic intensity based on distance.
Experimentally compare the sound attenuation obtained with different materials or a noise-canceling device.


Introduction:
In this practical work, using the sound attenuation tube, the student will be able to highlight the shape of a sound wave, measure its period, and calculate its frequency.
Then, through measurements of acoustic intensity levels, they will be able to investigate the influence of different parameters (materials, distances).
Thanks to Data Acquisition (ExAO), these experiments can be carried out in one session and the results can be immediately used by your students.