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5. SLUŠNA AKUSTIKA - Fer

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Skala glasnoće u<br />

sonima i jedinica<br />

son kod koje porast<br />

razine glasnoće za<br />

10 fona odgovara<br />

povišenju za<br />

dvostruki broj sona.<br />

Prema definiciji, na razini glasnoće od 40 fona na skali<br />

glasnoće u sonima to je glasnoća od 1 sona. Svaki porast<br />

od 10 fona donosi podvostručenje glasnoće u sonima.<br />

Lf= 40 + 33 log Ls Lf , Ls razine glasnoće u fonima i sonima<br />

Upravo perceptibilne promjene glasnoće<br />

13

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