Uno spettrogramma è la rappresentazione di un suono attraverso l’utilizzo di un grafico. La necessità di utilizzato uno spettrogramma è dovuta dal limite dello spettro che non evidenzia i momenti in cui si verificano le variazioni di frequenza. Lo spettrogramma rappresenta un segnale che mostra la relazione tra 3 variabili che caratterizzano qualsiasi suono: Frequenza …
Spettrogramma, l’intensità alle varie frequenze Leggi altro »
Dalla rappresentazione di un segnale audio nel Time Domain, deriva un altro tipo di rappresentazione, quella nel Dominio delle Frequenze. Questo tipo di rappresentazione deriva da quella temporale a cui viene applicata la trasformata di Fourier. Questo famosa trasformata permette di descrivere un segnale in modo che possa essere decomposto nelle proprie frequenze componenti.
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