Practice all the popular vowels: A, E, I, O, U and more! This app helps you with speech therapy and accent reduction.
The main function of the app is you will speak individual vowel sounds (diphthongs) and the app will show you what we hear. And there is a configuration page to help get better results, this helps if you don't have professional recording gear.
The has built-in test cases which replicate the Hillenbrand 1995 data set. Although you will need to supply those audio files and data files your self. Instructions are in the test folder.
Here are citations and research that this app is based on.
- Speech Acoustics Made Easy http://web.archive.org/web/20120914101638/http://www.cochlear.com/files/assets/speech_acoustics_made_easy.pdf
- English vowel word reference http://www.fonetiks.org/engsou2am.html
- Chinese vowel diagram http://en.wikipedia.org/wiki/Chinese_vowel_diagram
- Wiki page http://en.wikipedia.org/wiki/Formant
- The National Center for Voice and Speech http://www.ncvs.org/ncvs/tutorials/voiceprod/tutorial/filter.html
- Linguistics 110 Berkeley http://linguistics.berkeley.edu/~kjohnson/ling110/Homework_assignments/HW7_PlotVowels/PlotYourVowels.pdf
- MATLAB Speech Signal Analysis http://www.phon.ucl.ac.uk/courses/spsci/matlab/lect10.html
- MATLAB Formant Tracker example http://www.mathworks.com/matlabcentral/fileexchange/8959-formant-tracker
- Formant Java example http://chronos.ece.miami.edu/~dasp/SeniorProject/Presentation/416Presentation.pdf
- Digital Bubble Bath - Don H. Johnson Great discussion on formant analysis and practical implementation http://www.clear.rice.edu/elec431/projects96/digitalbb/formants.html
- https://github.com/MLSpeech/DeepFormants
- https://2020.ieeeicassp.org/
- http://htk.eng.cam.ac.uk/
- https://github.com/jaekookang/p2fa_py3
- https://github.com/gre/zpeech