the harvard sentences

  • The ‘Harvard Sentences’ Secretly Shaped The Development Of Audio Tech

    The ‘Harvard Sentences’ Secretly Shaped The Development Of Audio Tech

    Sarah Zhang

    During World War II, the boiler room under Harvard’s Memorial Hall was turned into a secretive wartime research lab. Here, volunteers were subjected to hours of noise as scientists tested military communications systems. Out of this came the Harvard sentences, a set of standardised phrases still widely used to test everything from mobile phones to…