Humans are perceptually tuned to amplitude and frequency modulations across specific rate bands

Evidence

We seem to be tuned to pay attention to amplitude and frequency modulations in the range from about 1 Hz to 16 Hz. In turn, modulations at 30–100 Hz result in the perception of rough and unpleasant sound. — Ville Pulkki, Matti Karjalainen, Communication Acoustics- An…, 1348

Categorization

• XREF: Connects to the reader’s standing work on soundscape/auditory perception — modulation-rate bands map to how low-frequency ambient noise and vibration are felt vs. heard.