Hearing is highly sensitive to temporal changes in sound
Evidence
The attributes of natural sounds typically change with time. Only periodic or noise-like sounds may sound the same for a longer time. Our hearing is very sensitive to temporal changes in sound, and a simple method to present the temporal variations in sound is to plot the instantaneous amplitude against time, which is called the amplitude envelope of sound. Another, slightly more complex method is to plot the spectrogram of the signal. — Ville Pulkki, Matti Karjalainen, Communication Acoustics- An…, 685
Categorization
- DEFINE: Defines the amplitude envelope and spectrogram as the two standard temporal-display methods for sound.
- corroborated: 2 independent passages support this claim — Ville Pulkki, Matti Karjalainen, Communication Acoustics- An…, 685
- XREF: connects to: Two kinds of sound change activate different processing features in hearing; Loudness develops over time after a sound ends, so later noise can interrupt it; Normal hearing yields a temporal resolution factor near unity (+11 more)
Broader Connections
- Sensitivity to auditory change can be tracked over time as a d-prime function.
#expands(0.82) - Temporal-structure sensitivity declines with age even when audiograms remain normal.
#qualifies(0.78) — Dijk, Pim van, Physiology, Psychoacoustics and…, 793 - Hearing forms loudness by integrating sound energy over about 100-200 ms
#expands(0.75) — Ville Pulkki, Matti Karjalainen, Communication Acoustics- An…, 1171