Improving Grapheme-to-Phoneme Conversion through In-Context Knowledge Retrieval with Large Language Models

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Hauptverfasser: Han, Dongrui, Cui, Mingyu, Kang, Jiawen, Wu, Xixin, Liu, Xunying, Meng, Helen
Format: Preprint
Veröffentlicht: 2024
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author Han, Dongrui
Cui, Mingyu
Kang, Jiawen
Wu, Xixin
Liu, Xunying
Meng, Helen
author_facet Han, Dongrui
Cui, Mingyu
Kang, Jiawen
Wu, Xixin
Liu, Xunying
Meng, Helen
contents Grapheme-to-phoneme (G2P) conversion is a crucial step in Text-to-Speech (TTS) systems, responsible for mapping grapheme to corresponding phonetic representations. However, it faces ambiguities problems where the same grapheme can represent multiple phonemes depending on contexts, posing a challenge for G2P conversion. Inspired by the remarkable success of Large Language Models (LLMs) in handling context-aware scenarios, contextual G2P conversion systems with LLMs' in-context knowledge retrieval (ICKR) capabilities are proposed to promote disambiguation capability. The efficacy of incorporating ICKR into G2P conversion systems is demonstrated thoroughly on the Librig2p dataset. In particular, the best contextual G2P conversion system using ICKR outperforms the baseline with weighted average phoneme error rate (PER) reductions of 2.0% absolute (28.9% relative). Using GPT-4 in the ICKR system can increase of 3.5% absolute (3.8% relative) on the Librig2p dataset.
format Preprint
id arxiv_https___arxiv_org_abs_2411_07563
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Improving Grapheme-to-Phoneme Conversion through In-Context Knowledge Retrieval with Large Language Models
Han, Dongrui
Cui, Mingyu
Kang, Jiawen
Wu, Xixin
Liu, Xunying
Meng, Helen
Artificial Intelligence
Grapheme-to-phoneme (G2P) conversion is a crucial step in Text-to-Speech (TTS) systems, responsible for mapping grapheme to corresponding phonetic representations. However, it faces ambiguities problems where the same grapheme can represent multiple phonemes depending on contexts, posing a challenge for G2P conversion. Inspired by the remarkable success of Large Language Models (LLMs) in handling context-aware scenarios, contextual G2P conversion systems with LLMs' in-context knowledge retrieval (ICKR) capabilities are proposed to promote disambiguation capability. The efficacy of incorporating ICKR into G2P conversion systems is demonstrated thoroughly on the Librig2p dataset. In particular, the best contextual G2P conversion system using ICKR outperforms the baseline with weighted average phoneme error rate (PER) reductions of 2.0% absolute (28.9% relative). Using GPT-4 in the ICKR system can increase of 3.5% absolute (3.8% relative) on the Librig2p dataset.
title Improving Grapheme-to-Phoneme Conversion through In-Context Knowledge Retrieval with Large Language Models
topic Artificial Intelligence
url https://arxiv.org/abs/2411.07563