PSY384H5 Lecture Notes - Lecture 4: Vocal Folds, Fundamental Frequency, Spectrogram
Document Summary
Prosody: melody and rhythm of language (mainly in vowels) Emotional prosody (as a cue to meaning): i love this freaking class! (happy intonation, i love this freaking class. (sarcastically) Low pass filter (cut out all high frequencies) getting fundamental frequency information (low) getting f1 and f2 information. Ma in cantonese either means mother in law or a horse. 2 forces responsible for pulling vocal cords back together: bernouli effect, elasticity of vocal cords. 3 ways to determine pitch visually inspecting the wave: vertical striation (glottal pulses) in spectrograms, pitch tracking, calculating period of cycle from spectrogram. Answer: bigger movements of the vocal cords louder sound: with increase in subglottal air pressure see increase in pitch unless speaker actively compensates. Increase in subglottal air pressure causes vocal cords to open/close quickly as a result of heightened bernouli effect: when speaker gets to end of sentence, fundamental frequency tends to drop naturally with intensity.
