PRINCIPALI GRANDEZZE ACUSTICHE - Studium

Sorgenti coerenti e incoerenti• Sources are said to be coherent if, at some point, the acoustic signals theyproduce have a fixed phase relationship that is constant with time.• Signals are of the same frequency.Sorgenti che emettono segnali con lastessa frequenza e la stessa fasecostituisce una condizione che si verificamolto di rado nell’acustica tecnicaSources are said to be incoherent if, at some fixed point, the acoustic signalsthey produce have no fixed phase relationship with time:• Harmonic signals of different frequencies• Signals that themselves contain many frequencies eg. Noise