Aztec death whistles don't fit into any existing ... this leads to acoustic distortions and to a rough and piercing sound character that seems uniquely produced by the skull whistles," the authors ...

near the Aztec capital of Tenochtitlán in what is now Mexico City. The whistles all made "a shrill, piercing, and scream-like sound quality when played with intensive air pressure," the team ...

Prepare yourself for one of the most haunting sounds ever recorded—the Aztec Death Whistle. Used by ancient warriors to terrify enemies before battle, this eerie instrument produces a shriek so ...