1. Praat Fadi Biadsy

6. Praat http://www.fon.hum.uva.nl/praat/
Developed by Paul Boersma and David Weenink    Institute of Phonetic Sciences University of Amsterdam, the Netherlands
General purpose speech tool: editing, segmentation and labeling, audio DSP, and prosodic manipulation

8. Praat
Pros: designed for speech analysis (not only sound edition or spectrogram visualization), nice GUI, scripting, active development and community, prosodic manipulation
Cons: limited scripting language, slow GUI

9. Let’s…
See the pitch contour of Solfege:

10. Let’s… Compare the spectrograms of
1.  It’s hard to recognize speech
It’s hard to wreck a nice beach
Record “it’s cool to play with praat”
Manipulate the pitch contour
Annotate this utterance

11. Task1
Record a file with all the vowels and look at the formants to see how they differ

12. Task2
Record files with each consonant class in the context of the same vowel, to see what the spectrograms look like: /pax/, /tax/, /kax/; /bax/, /dax/, /gax/

13. Task3
Record a short sentence as angry speech, sad, speech, happy speech, and see what things (pitch contour, pitch mean and max, intensity mean and max, spectral information) differ. choose something fully voiced if possible.

14. Task4
Create a sound from equation with noise, and try to filter the noise out