| Subject | English | Bulgarian |
| construct. | noise control | противошумова защита |
| environ. | noise control | контрол на шума (Процесът на контрол на чуваемите звуци до приемливо ниво) |
| construct. | noise control | борба с шума |
| construct. | noise control barrier wall | шумозащитна екранираща стена (алешаBG) |
| construct. | noise control measures | мерки за борба с шума (алешаBG) |
| environ. | traffic noise control Traffic noise can be controlled by reduction at source, by fitting motor vehicles with silencers, by installing barriers which interrupt the direct path of sound or by insulating dwellings exposed to high noise levels, such as those related to motorways or airports | контрол на шума от трафик |