The speech-recognition-java-hidden-markov-model-vq-mfcc from gtiwari333

speech-recognition-java-hidden-markov-model-vq-mfcc's Introduction

Java Speech Recognition using Hidden Markov Model / Vector Quantization / MFCC

Automatically exported from code.google.com/p/speech-recognition-java-hidden-markov-model-vq-mfcc

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Accompanying project report

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

Main classes to look into are :

org.ioe.tprsa.mediator.Operations : class that demonstrates use of HMM, VQ training and testing
org.ioe.tprsa.ui.HMM_VQ_Speech_Recognition : GUI that allows record of voice samples per word, train the samples, test with a recorded audio or saved .wav file.

Folder conventions :

Training audio files

speechTrainWav\apple\apple01.wav
speechTrainWav\apple\apple02.wav
speechTrainWav\apple\apple03.wav
speechTrainWav\apple\apple04.wav
speechTrainWav\cat\cat01.wav
speechTrainWav\cat\cat02.wav
speechTrainWav\cat\cat03.wav

Vector Quantization code book :

models\codeBook\codebook.cbk

HMM trained models :

models\HMM\apple.hmm
models\HMM\cat.hmm
models\GMM\Nepal.hmm

Please feel free to use/modify the code !

For any queries :

Email : [email protected]

Blog : http://ganeshtiwaridotcomdotnp.blogspot.com/

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speech-recognition-java-hidden-markov-model-vq-mfcc's Issues

Additional folder created on saving file.

Upon saving a recorded file in the HMM_VQ class, an additional folder is made inside of the Word folder, with the same name as the world folder. Attached is a picture when the said scenario occurs.

The issue occurs every time a file is saved, to reproduce the bug, this is the following action taken.

Record a new .wav file using the Record button in the JSoundCapture Panel
Proceed to change into Add Sample tab on the JTabbedPane
Changing the ComboBox into the word to save the sample.
A folder with the same name as the Word folder is made inside of the Word folder.

This is an issue cause the empty folder created at the word folder causes an error when generating codebook or training the HMM.

MFCC Java implementation and Preemphasis

On file MFCC.java on line 40 and 41.
How to Work the "preEmphasis"? if the call to the method is after of the 
"magnitudeSpectrum" and "magnitudeSpectrum" return a new instance of "double[]" 
name "bin".

Sorry for my bad English.

Best Regards.
Sebastian Rasilla.

Original issue reported on code.google.com by [email protected] on 19 Apr 2013 at 1:09

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