Phoneme-Balanced and Digit-Sequence-Preserving Connected Digit Patterns for Text-Prompted Speaker Verification

Tsuneo KATO; Tohru SHIMIZU

Phoneme-Balanced and Digit-Sequence-Preserving Connected Digit Patterns for Text-Prompted Speaker Verification

Tsuneo KATO, Tohru SHIMIZU

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This paper presents a novel design of connected digit patterns to achieve high accuracy text-prompted speaker verification over a cellular phone network. To reduce the error rate, a phoneme-balanced connected digit pattern for enrollment, and digit-sequence-preserving connected digit patterns for verification (i.e. patterns preserving partial digit sequences of the enrollment pattern) are proposed. In addition to these, a decision procedure using multiple patterns has been designed to overcome the low quality of cellular phone speech. Experimental results on cellular phone speech showed the phoneme-balanced patterns for enrollment and digit-sequence-preserving patterns for verification reduced more than 50% of equal error rate compared to the conventional method using randomly-selected and randomly-reordered digit patterns. The decision procedure reduced 60% of the error rate. In addition, this paper shows that verification patterns depending on the pattern of a preceding utterance reduced 10% of the error rate. Overall, the error rate obtained by the proposed method was 1% for 99% of clients and 95% of impostors.

Publication: IEICE TRANSACTIONS on Information Vol.E87-D No.5 pp.1194-1199

Publication Date: 2004/05/01

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Type of Manuscript: Special Section PAPER (Special Section on Speech Dynamics by Ear, Eye, Mouth and Machine)

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Tsuneo KATO, Tohru SHIMIZU, "Phoneme-Balanced and Digit-Sequence-Preserving Connected Digit Patterns for Text-Prompted Speaker Verification" in IEICE TRANSACTIONS on Information, vol. E87-D, no. 5, pp. 1194-1199, May 2004, doi: .
Abstract: This paper presents a novel design of connected digit patterns to achieve high accuracy text-prompted speaker verification over a cellular phone network. To reduce the error rate, a phoneme-balanced connected digit pattern for enrollment, and digit-sequence-preserving connected digit patterns for verification (i.e. patterns preserving partial digit sequences of the enrollment pattern) are proposed. In addition to these, a decision procedure using multiple patterns has been designed to overcome the low quality of cellular phone speech. Experimental results on cellular phone speech showed the phoneme-balanced patterns for enrollment and digit-sequence-preserving patterns for verification reduced more than 50% of equal error rate compared to the conventional method using randomly-selected and randomly-reordered digit patterns. The decision procedure reduced 60% of the error rate. In addition, this paper shows that verification patterns depending on the pattern of a preceding utterance reduced 10% of the error rate. Overall, the error rate obtained by the proposed method was 1% for 99% of clients and 95% of impostors.
URL: https://globals.ieice.org/en_transactions/information/10.1587/e87-d_5_1194/_p

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@ARTICLE{e87-d_5_1194,
author={Tsuneo KATO, Tohru SHIMIZU, },
journal={IEICE TRANSACTIONS on Information},
title={Phoneme-Balanced and Digit-Sequence-Preserving Connected Digit Patterns for Text-Prompted Speaker Verification},
year={2004},
volume={E87-D},
number={5},
pages={1194-1199},
abstract={This paper presents a novel design of connected digit patterns to achieve high accuracy text-prompted speaker verification over a cellular phone network. To reduce the error rate, a phoneme-balanced connected digit pattern for enrollment, and digit-sequence-preserving connected digit patterns for verification (i.e. patterns preserving partial digit sequences of the enrollment pattern) are proposed. In addition to these, a decision procedure using multiple patterns has been designed to overcome the low quality of cellular phone speech. Experimental results on cellular phone speech showed the phoneme-balanced patterns for enrollment and digit-sequence-preserving patterns for verification reduced more than 50% of equal error rate compared to the conventional method using randomly-selected and randomly-reordered digit patterns. The decision procedure reduced 60% of the error rate. In addition, this paper shows that verification patterns depending on the pattern of a preceding utterance reduced 10% of the error rate. Overall, the error rate obtained by the proposed method was 1% for 99% of clients and 95% of impostors.},
keywords={},
doi={},
ISSN={},
month={May},}

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TY - JOUR
TI - Phoneme-Balanced and Digit-Sequence-Preserving Connected Digit Patterns for Text-Prompted Speaker Verification
T2 - IEICE TRANSACTIONS on Information
SP - 1194
EP - 1199
AU - Tsuneo KATO
AU - Tohru SHIMIZU
PY - 2004
DO -
JO - IEICE TRANSACTIONS on Information
SN -
VL - E87-D
IS - 5
JA - IEICE TRANSACTIONS on Information
Y1 - May 2004
AB - This paper presents a novel design of connected digit patterns to achieve high accuracy text-prompted speaker verification over a cellular phone network. To reduce the error rate, a phoneme-balanced connected digit pattern for enrollment, and digit-sequence-preserving connected digit patterns for verification (i.e. patterns preserving partial digit sequences of the enrollment pattern) are proposed. In addition to these, a decision procedure using multiple patterns has been designed to overcome the low quality of cellular phone speech. Experimental results on cellular phone speech showed the phoneme-balanced patterns for enrollment and digit-sequence-preserving patterns for verification reduced more than 50% of equal error rate compared to the conventional method using randomly-selected and randomly-reordered digit patterns. The decision procedure reduced 60% of the error rate. In addition, this paper shows that verification patterns depending on the pattern of a preceding utterance reduced 10% of the error rate. Overall, the error rate obtained by the proposed method was 1% for 99% of clients and 95% of impostors.
ER -