Next: 06.06.2002 Speech perception
Up: Phonetik/Phonologie
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For today's tasks you will need to continue the ``notebookïï which
you have started to produce using MS Word.
Task:
Search the web (or the textbook) for explanations of the following concepts
concerned with acoustic signal processing and make a glossary (list of terms
with brief definitions) for the following terms:
- signal processing
- acoustics
- acoustic phonetics
- speech signal
- oscillogramme (oscillogram)
- spectrum
- spectrogramme (spectrogram)
- pitch track, pitch trace
- frequency
- amplitude
- sine wave, sinusoid
- Fourier series
- Fourier analysis
- Fourier transformation
- fundamental frequency, pitch
- harmonic
- formant
In particular, search for illustrations of the acoustic properties of vowels
and consonants.
You will find visual illustrations of various kinds - diagrammes, photos etc. -
and audio examples. Include selected examples of these in your document.
Then answer the following questions:
- What are the main acoustic characteristics of vowels?
- How does [i] differ from [a] and from [u]
- What are the main acoustic characteristics of plosives (stops)?
- How does [p] differ acoustically from [b]?
- How does [p] differ acoustically from [t]?
- What are the main acoustic characteristics of fricatives?
- How does [f] differ acoustically from [s]?
- What are the main acoustic characteristics of nasals?
Dafydd Gibbon, Thu Jul 18 17:56:56 MEST 2002 Automatically generated, links may change - update every session.