Voice recording, used as evidence (1960s) (18 jan 1960 ano – 31 jul 2005 ano)
Descrição:
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.
Adicionado na linha do tempo:
Data:
18 jan 1960 ano
31 jul 2005 ano
~ 45 years