Speech Perception Flashcards
Is it easy to perceive speech given a fourier transform from the basillar membrane?
No
What is a phoneme?
The smallest component of speech, invariant across people
Speech is produced when the vocal folds are in the ____ position
Closed
How are vowels produced?
Harmonic spectrum of sound wave just beyond vocal folds
+
Filtering function due to shape of oral cavity
=
Harmonic spectrum of sound wave emerging from mouth
How are consonants produced?
By restricting or completely stopping at one position of the vocal tract?
What are 3 factors that determine consonant sound?
Place of articulation
Manner of articulation
Voicing
What is Co-Articulation?
Consonant-vowel shifts alter the spectrogram while maintaining the identity of the phoneme
“di” vs “da” (Ds sound the same but appear different)
What is the difference between “ta” and “da” in terms of speech production?
Voice of Onset Time (VOT)
What is the cerebral roadmap for sound?
1) Primary Auditory cortex
2) Wernicke’s Area
3) Broca’s Area
4) Primary Motor Cortex
True/False? In almost all of right handed individuals, speech is represented contralaterally
True
What makes a middle C on a piano sound different from a middle C on a guitar?
The amplitudes at harmonics are different (same fundamental frequency and harmonics, just different levels)
What is the diff between a note and the same note an octave higher?
The fundamental frequency is shifted 2 times
The note perceptually feels similar to the original but is at a higher tonal height
True/False? The number of note divisions in and octave is a social construct
True
What differentiates consonant and dissonant notes?
consonant: Notes with harmonics at equal spacings
Dissonant: harmonics at different spacings
