European listeners heard Arabic as threats before 1954. [fact]
On the other hand, the Voice of Algeria was imagined to be pronouncing death sentences by certain Algerian collaborators. Suffering from serious fits of depression, these men who usually belonged to the police services, would be attacked, insulted, convicted by the "rebel" radio. Likewise, European women as well as European men in outbreaks of anxiety would very clearly hear threats or condemnations in the Arabic language. Such phenomena were practically unknown before 1954.
Frantz Fanon, A Dying Colonialism, loc. 343