chapter 10 (M. Wolfe) Flashcards
Acoustic startle reflex
The very rapid motor response to a sudden sound.
Attack
The part of a sound during which amplitude increases (onset).
Auditory stream segregation
The perceptual organization of a complex acoustic signal into separate auditory events for which each stream is heard as a separate event.
Cone of confusion
A region of positions in space where all sounds produce the same time and level (intensity) differences (ITDs and ILDs).
The lowest-frequency component of a complex periodic sound.
The lowest-frequency component of a complex periodic sound.
Interaural level difference (ILD)
The difference in level (intensity) between a sound arriving at one ear versus the other.
Interaural time difference (ITD)
The difference in time between a sound arriving at one ear versus the other.
Source segregation or auditory scene analysis
Processing an auditory scene consisting of multiple sound sources into separate sound images
Describe the concept of interaural time difference and its importance.
It is the difference in time between a sound arriving at one ear versus the other. It is an important cue for localizing sound.
Why is the cone of confusion confusing?
The cone of confusion is the region of positions in space where all sounds produce the same time and level (intensity) differences. In such a situation it is difficult to localize sound, which is confusing to the listener.
Describe the phenomenon of the “missing fundamental.”
It is the phenomenon in which listeners will still hear the pitch of a missing fundamental frequency of a harmonic sound even if it is not present in the actual sound wave.
- Explain the idea of restoration of complex sounds.
Restoration of complex sounds can occur when listening to speech or music. The missing notes or segments of speech are filled in by the listener, and the whole piece is thus restored.
