Two kinds of sound change activate different processing features in hearing

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 (#exemplifies, via linked claim)

Categorization

• XREF: connects to: Hearing is highly sensitive to temporal changes in sound — Ville Pulkki, Matti Karjalainen, Communication Acoustics- An…, 685; Perception of changing sound requires simultaneous time and frequency resolution; Acoustic increments are more salient than decrements in complex stimuli (+1 more)

Related

• Hearing is highly sensitive to temporal changes in sound (similarity 0.94)
• Temporal change is a defining feature of natural sound perception (similarity 0.90)
• All information-bearing sound must vary over time (similarity 0.87)
• Normal hearing yields a temporal resolution factor near unity (similarity 0.87)
• Auditory attention requires temporal variation in any sound signal (similarity 0.87)
• Sound must vary over time to hold listener attention (similarity 0.86)
• Perception of changing sound requires simultaneous time and frequency resolution (similarity 0.86)
• Temporal processing is essential for hearing speech and music (similarity 0.85)
• The auditory system highlights spectral changes to help listeners compare sounds (similarity 0.85)
• Hearing repackages one-dimensional sound signals into multidimensional time-frequency objects (similarity 0.84)
• An increasing sound appearance is more salient than a decreasing one in complex stimuli. (similarity 0.84)
• Hearing’s temporal resolution varies from 1-2 ms depending on frequency (similarity 0.84)
• Hearing adapts to focus on the audible 20-30 dB of decay (similarity 0.84)
• Level variations within a sound and differences between sounds activate distinct hearing processes. (similarity 0.84)
• Detecting statistical changes in sound improves with listening time and change size (similarity 0.84)

Broader Connections

• Hearing is highly sensitive to temporal changes in sound #exemplifies (0.78) — Ville Pulkki, Matti Karjalainen, Communication Acoustics- An…, 685
• Perception of changing sound requires simultaneous time and frequency resolution #expands (0.75)
• Acoustic increments are more salient than decrements in complex stimuli #exemplifies (0.72)