RASMALAI: Resources for Adaptive Speech Modeling in Indian Languages with Accents and Intonations

Fuente: arXiv
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Autores principales: Sankar, Ashwin, Lacombe, Yoach, Thomas, Sherry, Varadhan, Praveen Srinivasa, Gandhi, Sanchit, Khapra, Mitesh M
Formato: Preprint
Publicado: 2025
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author Sankar, Ashwin
Lacombe, Yoach
Thomas, Sherry
Varadhan, Praveen Srinivasa
Gandhi, Sanchit
Khapra, Mitesh M
author_facet Sankar, Ashwin
Lacombe, Yoach
Thomas, Sherry
Varadhan, Praveen Srinivasa
Gandhi, Sanchit
Khapra, Mitesh M
contents We introduce RASMALAI, a large-scale speech dataset with rich text descriptions, designed to advance controllable and expressive text-to-speech (TTS) synthesis for 23 Indian languages and English. It comprises 13,000 hours of speech and 24 million text-description annotations with fine-grained attributes like speaker identity, accent, emotion, style, and background conditions. Using RASMALAI, we develop IndicParlerTTS, the first open-source, text-description-guided TTS for Indian languages. Systematic evaluation demonstrates its ability to generate high-quality speech for named speakers, reliably follow text descriptions and accurately synthesize specified attributes. Additionally, it effectively transfers expressive characteristics both within and across languages. IndicParlerTTS consistently achieves strong performance across these evaluations, setting a new standard for controllable multilingual expressive speech synthesis in Indian languages.
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publishDate 2025
record_format arxiv
spellingShingle RASMALAI: Resources for Adaptive Speech Modeling in Indian Languages with Accents and Intonations
Sankar, Ashwin
Lacombe, Yoach
Thomas, Sherry
Varadhan, Praveen Srinivasa
Gandhi, Sanchit
Khapra, Mitesh M
Computation and Language
We introduce RASMALAI, a large-scale speech dataset with rich text descriptions, designed to advance controllable and expressive text-to-speech (TTS) synthesis for 23 Indian languages and English. It comprises 13,000 hours of speech and 24 million text-description annotations with fine-grained attributes like speaker identity, accent, emotion, style, and background conditions. Using RASMALAI, we develop IndicParlerTTS, the first open-source, text-description-guided TTS for Indian languages. Systematic evaluation demonstrates its ability to generate high-quality speech for named speakers, reliably follow text descriptions and accurately synthesize specified attributes. Additionally, it effectively transfers expressive characteristics both within and across languages. IndicParlerTTS consistently achieves strong performance across these evaluations, setting a new standard for controllable multilingual expressive speech synthesis in Indian languages.
title RASMALAI: Resources for Adaptive Speech Modeling in Indian Languages with Accents and Intonations
topic Computation and Language
url https://arxiv.org/abs/2505.18609