Experimental studies on effect of speaking mode on spoken term detection

Rout, K and Reddy, P R and Kodukula, Sri Rama Murty (2015) Experimental studies on effect of speaking mode on spoken term detection. In: 21st National Conference on Communications, 27 February 2015 - 1 March 2015, IIT Bombay Mumbai; India.

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The objective of this paper is to study the effect of speaking mode on spoken term detection (STD) system. The experiments are conducted with respect to query words recorded in isolated manner and words cut out from continuous speech. Durations of phonemes in query words greatly vary between these two modes. Hence pattern matching stage plays a crucial role which takes care of temporal variations. Matching is done using Subsequence dynamic time warping (DTW) on posterior features of query and reference utterances, obtained by training Multilayer perceptron (MLP). The difference in performance of the STD system for different phoneme groupings (45, 25, 15 and 6 classes) is also analyzed. Our STD system is tested on Telugu broadcast news. Major difference in STD system performance is observed for recorded and cut-out types of query words. It is observed that STD system performance is better with query words cut out from continuous speech compared to words recorded in isolated manner. This performance difference can be accounted for large temporal variations.

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IITH Creators:
IITH CreatorsORCiD
Kodukula, Sri Rama Murtyhttps://orcid.org/0000-0002-6355-5287
Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: Broadcast news; Continuous speech; Dynamic time warping; Multi layer perceptron; Posterior features; Spoken Term Detection (STD); Spoken term detections; Temporal variation
Subjects: Others > Electricity
Divisions: Department of Electrical Engineering
Depositing User: Team Library
Date Deposited: 25 May 2015 09:27
Last Modified: 05 Dec 2017 04:01
URI: http://raiith.iith.ac.in/id/eprint/1532
Publisher URL: https://doi.org/0.1109/NCC.2015.7084926
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