This study examined the psychoacoustic and archeoacoustic effects ... sound library of over 2,500 recordings, including natural, human, and synthetic sounds, to compare with the skull whistle ...

Ranging from a threatening hiss to a blood-curdling scream, the sound of the Aztec death whistle is as creepy as ... like the uncanny valley effect in sound-form. The uncanny valley occurs ...

Since ancient times, rituals using various musical instruments have been performed around the world, but the Aztec flute, which imitates a skull, has a tone that stands out from the rest.

The wail of the Aztec Death Whistle was the last thing many human ... the sound produced a strong negative emotional response as well as a sense of urgency and arousal. In terms of the effect ...