Psychoacoustics Flashcards
IAD
Interaural Amplitude Differences
ITD
Interaural Time Differences
ISD
Interaural Spectral Differences
DEF: Interaural Amplitude Differences (IAD)
Rely on amplitude differences between the two ears
DEF: Interaural Time Differences (ITD)
Rely on phase difference between the two ears
DEF: Interaural Spectral Differences (ISD)
Rely on frequency differences between the two ears
Sounds below approx. 1 kHz are perceived as _____ when played at high levels
lower
Sounds above approx. 2 kHz are perceived as _____ when played at high levels
higher
What’s another name for the Haas Effect?
The precedence effect; the law of first wavefront
What is the Precedence/Haas Effect?
A binaural psychoacoustical effect where a sound is followed by another sound separated by a sufficiently short time delay, listeners perceive a single auditory event; its perceived spatial location is more or less determined by which ear receives the sound first.
What is the doppler effect?
The apparent change in the frequency of a wave caused by the relative motion between the source of the wave and the observer
If an object emitting sound waves is moving either toward or away from a stationary observer, how does that affect the frequency?
The soundwaves in front of the moving object bunch together and the sound waves behind the object spread out.
If the object is moving toward you the waves will be perceived at a higher frequency.
If the object is moving away from you, the waves will be perceived at a lower frequency.
What is the formula for calculating the pitch shift from a moving source with a stationary listener?
F = (c/c-Vs)Fo
What is the McGurk effect?
A perceptual phenomenon that occurs when the visual information a person gets from seeing a person speak changes the way they hear the sound.
