S302, Kewley-Port 11/13/07

Homework 12 B - Second Half
Spectrograms

8. How are the frequency components of sound represented in a spectrum. What part of a spectrogram represents these frequencies?

9. How are differences in amplitude represented in a sound spectrum? In a spectrogram?

10. How is time represented in a sound spectrum? In a spectrogram?

11. For F1, F2 & F3 for the 7 vowel spectrograms from a male talker below, (a) Draw through the center frequencies of the formants like in the figure 7. 5 in Speech Chain . (b) Measure the formants and put your answers in a table.

i-I-e

a-u

c). How many formants can you distinguish in the spectrogram of the /a/ vowel? ______ of the /u/ vowel? ______

d) What range of F1 frequencies did you find for the 7 male vowels? Would this range be higher or lower for a female talker?