Voice recording, used as evidence (1960s) (18 janv. 1960 – 31 juill. 2005)
Description:
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.Ajouté au bande de temps:
Date:
18 janv. 1960
31 juill. 2005
~ 45 years