Kumsindo womkhathi kanye nokungcoliswa komsindo, ileveli yomsindo we-ambient (ngezinye izikhathi ibizwa ngokuthi umsindo wangemuva ileveli, ileveli yomsindo wereferensi, noma izinga lomsindo wegumbi) izinga lokucindezela komsindo wangemuva endaweni ethile, ngokuvamile ecaciswa njengezithenjwa zokutadisha umthombo womsindo omusha ophazamisayo.
Amazinga omsindo we-ambient ngokuvamile ayalinganiswa ukuze kumephu izimo zomsindo phezu kombuso wendawo ukuze kuqondwe ukuhlukahluka kwawo ngendawo.
Kulokhu umkhiqizo wophenyo ibalazwe lekhonta elizwakalayo. Ngakolunye uhlangothi amaleveli omsindo we-ambient angase akalwe ukuze anikeze indawo eyireferensi yokuhlaziya umsindo ophazamisayo endaweni ethile.
Isibonelo, kwesinye isikhathi umsindo wendiza ucutshungulwa ngokulinganisa umsindo we-ambient ngaphandle kokuba khona kwanoma yikuphi ukundiza okungaphezulu, bese kufundwa ukungezwa komsindo ngokulinganisa noma ukulingisa kwekhompyutha kwemicimbi ye-overflight.
Noma umsindo womgwaqo ulinganiswa njengomsindo we-ambient, ngaphambi kokwethula umgoqo womsindo ocatshangelwayo ohloselwe ukunciphisa lelo zinga lomsindo we-ambient. Izinga lomsindo we-ambient likalwa ngemitha yezinga lomsindo.
Ngokuvamile kulinganiswa ku-dB ngaphezu kwezinga lengcindezi yereferensi engu-0.00002 Pa, okungukuthi, 20 μPa (ama-micropascals) kumayunithi we-SI. I-pascal iyi-newton ngemitha yesikwele.
Isistimu yamayunithi yesentimitha-igremu-yesibili, ileveli yereferensi yokulinganisa ileveli yomsindo we-ambient ngu-0.0002 dyn/cm2.
Amaleveli omsindo we-ambient ajwayele ukulinganiswa kusetshenziswa isihlungi sesisindo se-frequency, esivame kakhulu isikali se-A-weighting, njengokuthi izilinganiso eziwumphumela zisho i-dB(A), noma ama-decibel esikalini se-A-weighting.
NginguJoost Nusselder, umsunguli we-Neaera kanye nomkhangisi wokuqukethwe, ubaba, futhi ngiyathanda ukuzama izinto ezintsha ngesiginci enhliziyweni yesifiso sami, futhi kanye nethimba lami, bengilokhu ngidala izindatshana zebhulogi ezijulile kusukela ngo-2020. ukusiza abafundi abathembekile ngokurekhoda namathiphu esiginci.
