# Name: _______________________________________ Sound Spectrography Exercise SPV 349 Examine the image below (a

Name: _______________________________________
Sound Spectrography Exercise
SPV 349
Examine the image below (a waveform (amp vs time graph) and below that a
spectrogram).
What analyzing filter was used to generate this spectrogram?
___________.
What type of spectrogram is shown above?
___________________________________
How did you determine this?
__________________________________________________
Over time (0 – 4 seconds), did the vowel change? _______
Support your answer:
Over time (0 – 4 seconds), did the fo change? _______
If you answered yes, how did fo change?
__________________________________________________
If you answered no, support your answer:
__________________________________________________
Describe how amplitude changed or did not change over time.
___________________________________________
Support your answer:
___________________________________________
Examine the image below (a waveform (amp vs time graph) and below that a
spectrogram).
What analyzing filter was used to generate this spectrogram?
___________.
What type of spectrogram is shown above?
___________________________________
How did you determine this?
__________________________________________________
Over time (0 – 4 seconds), did the vowel change? _______
Support your answer:
Over time (0 – 4 seconds), did the fo change? _______
If you answered yes, how did fo change?
__________________________________________________
If you answered no, support your answer:
__________________________________________________
Describe how amplitude changed or did not change over time.
___________________________________________
Support your answer:
___________________________________________
Was the quality of this vowel good or hoarse? _________
Support your answer:
__________________________________________________________
3. Below is a highly stylized rendering of a power spectrum. A power spectrum is a type of spectrographic display that shows Amplitude vs. Frequency at a point in time. It is just like the graph we have studied earlier in this course: the amplitude spectrum.
Refer to the power spectrum above.
Describe completely the amplitude spectrum of this sound:
_______________________________________________________________
Describe some speech sounds that would have a spectrum like the one shown above
_______________________________________________________________
The figure below shows an amplitude waveform and below that, a spectrogram of /bipi/.
What analyzing filter was used to generate this spectrogram?
___________________________________________________________
What type of spectrogram is this?
___________________________________________________________
At the bottom of the spectrogram, place an arrow at the start and end of the Voice Onset Times (VOTs) for the /b/ and /p/ sounds.