// todo need optimize like in event.jsp. Add indexing or not indexing this page. Voice recording, used as evidence (1960s) (18 янв 1960 г. – 31 июл 2005 г.) (Лента времени)

Voice recording, used as evidence (1960s) (18 янв 1960 г. – 31 июл 2005 г.)

Описание:

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.