PSY280H1 Lecture Notes - Lecture 9: Auditory Cortex, Tinnitus, Angular Acceleration
13
PSY280H1 Full Course Notes
Verified Note
13 documents
Document Summary
This class: ch 10, 12: next class: ch 13, 14. Lowest frequency of harmonic spectrum: fundamental frequency (gives the perceived pitch) Instrument has overtones that give its characteristic sound. Auditory system is acutely sensitive to natural relationships between harmonics. Different vowels are defined by their harmonic ratios for example. Below: this is frequency of sound by amplitude of each frequency. All harmonics after are integer multiples of the fundamental frequency. You still hear the same pitch despite this. You can remove a frequency and still get the same pitch (hear it) Explanation: overtones for example shown on the graph to far right (for fundamental 250 hz) The last graph shows the summation of the graphs. You will see that there is some periodicity that patterns every 4ms. This pattern is characteristic of the particular pitch which is why you hear it. This happens on the neural level and not in the ears.
