Amplitude-modulated white noise sounds pitched at the modulation rate.
Evidence
A weak pitch percept is also generated by modulating sinusoidally the amplitude of white noise (sinusoidally amplitude-modulated noise, or SAM noise). The pitch is perceived at the frequency of amplitude modulation, although the long-term spectrum of sound is flat. — Ville Pulkki, Matti Karjalainen, Communication Acoustics- An…, 1110
Categorization
Category: Factual Claims
- DEFINE: SAM noise: a definable technical term illustrating how modulation rate, not spectral content, drives pitch.
Related
- Amplitude modulation of noise creates pitch with a flat spectrum (similarity 0.94)
- Amplitude-modulated broadband noise yields only faint pitch despite flat spectrum (similarity 0.83)
- Slow amplitude modulation reduces pure tone pitch strength by ten to twenty percent (similarity 0.83)
- Pitch strength of amplitude-modulated tones depends critically on the carrier-to-modulation frequency ratio (similarity 0.82)
- Amplitude-modulated broadband noise yields only 15% of a pure tone’s pitch strength. (similarity 0.81)
- Noise with a sharp spectral peak is perceived as pitched. (similarity 0.81)
- Noise-type sounds have far weaker pitch strength than pure or complex tones. (similarity 0.80)
- Time-frequency modulation and amplitude modulation are distinct operations (similarity 0.80)
- An amplitude-modulated tone produces a three-line spectrum (similarity 0.79)
- Amplitude-modulation detection improves with tone level but is level-independent for noise. (similarity 0.79)
- Pitch depends only on spectrum and periodicity, not volume or direction. (similarity 0.79)
- Humans are perceptually tuned to amplitude and frequency modulations across specific rate bands (similarity 0.79)
- Pitch strength varies independently of perceived pitch height (similarity 0.79)
- An amplitude-modulated tone is a carrier plus two side lines (similarity 0.78)