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| Finnish | English |
| lineaarinen äänen lähde | linear source of sound Point noise sources placed one after the other one as, for instance, in a row of cars moving on a road |
| lineaarinen äänen lähde | linear source of sound |
| äänen absorptio | acoustic absorption |
| äänen eristys | soundproofing Reducing or eliminating reverberation in a room by placing sound-absorbing materials on the walls and ceiling |
| "äänen eristys, ääneneristys" | soundproofing |
| "äänen eteneminen, äänen etenemisliike" | sound propagation |
| äänen etenemisliike | sound propagation The travelling of acoustic waves in the atmosphere with a speed independent of their amplitude. The speed only depends on the acoustic medium and is proportional to the square route of the absolute temperature for any given medium |
| äänen läpäisy t. eteneminen | sound transmission |
| äänen läpäisy t. eteneminen | sound transmission Passage of a sound wave through a medium or series of media |
| äänen mittaus | sound measurement Because of the large variations in sound magnitudes, and because the human hearing sensation seems to vary in a logarithmic way, logarithms are used in measurement of sound. The sound pressure level is given in decibels (dB) |
| äänen mittaus | sound measurement |