Psychology 2115A/B Lecture Notes - Vocal Tract, Spectrogram, Two-Streams Hypothesis
17 Apr 2013
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Document Summary
By the end of this section, you should know: the acoustic signal of speech, how variability affects speech perception, categorical perception, multimodal issues in speech, word segmentation, brain areas involved in speech. Graphs of the maoung of energy of frequency over time. The darkness of image= how intense and how much energy is at this sound. You end up with bands that run across horizontally of the figure and gets lighter as you get higher up. Bands= 4 dark bands= formants refer to bands of energy in the spectrogram. We number our formants- the lowest is always f1, and the highest is the last f4. Formants are useful , info providers because formants tell us about what vowel sounds are being emitted. In fact if you look at the formants, in particular the first two, we pay the most attention too. The difference between f1 and 2 tells us whichc vowel is being sounded.
