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35 Cards in this Set

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Experienced when you perceive objects located at different positions based on their sounds. This extends around your head, existing wherever there is a sound.
Auditory Space
Locating objects in space based on their sound.
Auditory Localization
This extends left and right from the listener.
Azimuth Coordinate
This extends up and down from the listener.
Elevation Coordinate
This specifies how far a sound source is from the listener.
Distance Coordinate
Sound reaching the left and right ear provides this.
Binaural Cues
The difference between the times that the sound reaches the left and right ears, can be used as a cue to determine a sound’s location.
Interaural Time Difference
The difference in intensity of the sound reaching the left and right ears.
Interaural Intensity Difference
This is larger for sounds to the side.
Interaural Intensity Difference
Dominant cue for low-frequency sounds.
Interaural Time Difference
Results when one ear receives sound directly, other will be in shadow (diffracted around the head, sound pressure is lower). This works for high frequencies only.
Accoustic Shadowing
This is based on the difference in the sound pressure level of the sound reaching the two ears.
Interaural Level Difference
Sound reaching just one ear provides this.
Monaural Cues
The difference between the sound from the source and the sound actually entering the ears.
Head-related transfer function
Mathematical description of exactly how each frequency in a sound from anywhere in surrounding space is amplified or dampened by the body parts near the ear.
Head-related transfer function
Perceiving the sound as coming from within your head.
Internalization
Sounds are heard as originating in space (Virtual Auditory Space, VAS, in headphones)
Externalization
Located in the auditory cortex, respond to specific interaural time differences. Each neuron responds best to a different delay.
Interaural Time Difference Detectors
This contain points on a neural structure that correspond in a systematic way to locations in space.
Topographic Maps
The area of space associated with each neuron; the location is space from which sound influences the firing of the neuron.
Receptive Field for Sound Location
Cortical neurons that signal location by their pattern of firing; it fires to sounds originating from all directions and indicates each location by its pattern of firing.
Panoramic Neurons
Separation of the stimuli produced by each of the sources in the scene into separate perceptions; dividing auditory information into separate perceptions based on the source.
Auditory Scene Analysis
The array of sound sources in the environment.
Auditory scene
The separation of the acoustic stimuli entering the ear into different perceptual streams.
Auditory Stream Segregation
An illusion that occurs when successive notes of a scale are presented alternately to the left and the right ears. Even though each ear receives notes that jump up and down in frequency, smoothly ascending or descending scales are heard in each ear.
Scale Illusion (Melodic Channeling)
A representation of a familiar melody that is stored in a person’s memory. When people don’t know that a melody is present, they have no access to the schema and therefore have nothing with which to compare the unknown melody.
Melody Schema
The sound reaching you ears directly, along a straight path from the sound source.
Direct Sound
Sounds that reach the ears after being reflected from a surface such as a room’s wall.
Indirect Sound
You perceive the sound as coming from the nearer speaker because the sound from the nearer speaker is reaching your ears first.
Precedence Effect
The study of how sounds are reflected in rooms.
Architectural Acoustics
The amount and duration of indirect sound produced by a room; the time it takes for the sound to decrease to 1/1000th of its original pressure.
Reverberation Time
Time between when sound arrives directly from stage and when the first reflection arrives.
Intimacy time
The ratio of low frequencies to middle frequencies that are reflected from walls and other surfaces.
Bass Ratio
The fraction of all of the sound received by a listener that is indirect sound.
Spaciousness Factor
When sound is heard coming from its seen location, even though it is actually originating somewhere else (like at the movies or rock concerts).
Visual Capture (Ventriloquism Effect)