PSYB51H3 Lecture 10: Lecture 10 PSYB51
Document Summary
Timbre: timbre aftereffect, attack and decay: harmonics. Lowest frequency of harmonic spectrum: fundamental frequency. Auditory system is acutely sensitive to natural relationships between harmonics. Missing fundamental (part 1: missing fundamental (x1) is not/barely noticed, more harmonics can be missing, how come, part 2: demo in matlab. Perception of timbre depends on context in which sound is heard. Experiment by summerfield et al. (1984: timbre contrast or timbre aftereffect , summerfield et al. "s (1984) timbre aftereffect , attack and decay of sound. Attack: part of a sound during which amplitude increases (onset) Decay: part of a sound during which amplitude decreases (offset: auditory scene analysis. Acoustic environment can be a busy place. Auditory scene analysis: a number of strategies to segregate sound sources. Separation on basis of sounds" spectral or temporal qualities. Auditory stream segregation: perceptual organization of a complex acoustic signal into separate auditory events for which each stream is heard as a separate event.
