The week's pick
Reseach Article
A Novel Method for Indexing and Retrieval of Speech using Gaussian Mixture Model Techniques
| International Journal of Computer Applications |
| Foundation of Computer Science (FCS), NY, USA |
| Volume 148 - Number 3 |
| Year of Publication: 2016 |
| Authors: R. Thiruvengatanadhan, P. Dhanalakshmi |
10.5120/ijca2016911098
|
R. Thiruvengatanadhan, P. Dhanalakshmi . A Novel Method for Indexing and Retrieval of Speech using Gaussian Mixture Model Techniques. International Journal of Computer Applications. 148, 3 ( Aug 2016), 42-47. DOI=10.5120/ijca2016911098
Abstract
Large speech databases such a Television broadcasts, TV programs, radio broadcasts, CDs and DVDs are available online these days. Research related to speech indexing and retrieval has received much attention in recent days due to the huge multimedia data storage capabilities. The goal of speech indexing and retrieval system is to provide the user with capabilities to index and retrieve the speech archives in an efficient manner. In this paper, we propose a method for indexing and retrieval of the speech. The speech activity is identified using voice activitiy detection and each complete speech dialogue is separated into individual words by marking each word‟s segment through the Root Means Square (RMS) energy envelope. Then the features namely Perceptual Linear Prediction (PLP), Power Normalized Cepstral Coefficient (PNCC), Subband Coding (SBC) and Sonogram extracted from each of the individual word. For retrieval, a novel method is proposed using Gaussian mixture models. The probability that the query feature vector belongs to the Gaussian is computed. The average Probability density function is computed for each of the feature vectors in the database and the retrieval is based on the highest probability.
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