Speech Recognition using HMM and VQ - Code Updates

Hey guys,

I've done some minor changes to the Speech Recognition code that I pushed to github/googlecode couple of years ago. As I received several attention/queries from readers/students all over the world regarding couple of minor bugs within the project, I thought its time ( better late than never :P ) to address them into the code.

Significant changes are on:

- Exception handling
- File handling
- File (recorded WAVE file, VQ codebook, HMM models) save path corrected
- Delta calculation fixed when regression window is less than number of frames ( when a short audio sample is recorded)

I've also uploaded training audio samples for few  words, trained Vector Quantization coebook and trained HMM model file for the words.

If you wish to add/train more words, please use the GUI - "HMM_VQ_Speech_Recognition" class. Just a note, you need to re-train both VQ and HMM for each word that you add.

Code :

https://github.com/gtiwari333/speech-recognition-java-hidden-markov-model-vq-mfcc

Report File (contains both Speech and Speaker recognition)

http://ganeshtiwaridotcomdotnp.blogspot.com/2011/06/final-report-text-prompted-remote.html

I hope everyone will benefit from this. Keep coding, keep learning. Please let me know if you see any issues.

Thank you!

Ynaxdh - answer acronym in Yeoman generator

Meaning of Ynaxdh in Yeoman generator

Here the complete list of options/meanings:

• Y: yes (Default)
• n: no
• a: always yes (yes to this question and all others)
• x: exit
• d: show the differences between the old and the new file
• h: help, list all options

Notes :   

• If you don't remember this definitions you can always enter h and see the list.
• Also in the new version, when you enter one of the letters you will see the definition showing behind the question so that you can verify your answer before pressing Enter key.
• The one in uppercase is the default one. If that is your choice, you can just hit enter.