Voice recording, used as evidence (1960s) (18 gen 1960 anni – 31 lugl 2005 anni)
Descrizione:
A sound spectrograph discovered to be able to record voices. Voiceprints began to be used in investigations and as court evidence from recordings of phones, answering machines, or tape recorders.Aggiunto al nastro di tempo:
Data:
18 gen 1960 anni
31 lugl 2005 anni
~ 45 years