AI4BharatIndic-TTS

Indic-TTS v1 Language Releases

Indic-TTS trains separate language systems using FastPitch acoustic models and HiFi-GAN V1 vocoders. Each monolingual system learns from male and female speakers.

Use the matching acoustic model and vocoder

The inference command needs both sets of weights and their configuration files. These releases differ from the later VITS and Parler families.AI4Bharat Indic-TTS project

Keep the paired components together

Practical guidance. Record the selected language archive, speaker setting and both model files. Replacing the vocoder changes the speech pipeline even when the text model is unchanged.

The release archive extends beyond the paper's language list

The paper reports thirteen Indian languages: Assamese, Bengali, Bodo, Gujarati, Hindi, Kannada, Malayalam, Manipuri, Marathi, Odia, Rajasthani, Tamil and Telugu.Towards Building Text-To-Speech Systems for the Next Billion Users

The release also includes en.zip, pa.zip and en+hi.zip. These archive names are preserved as English, Punjabi and English-Hindi variants. The release provides no separate training account for those three additions.Indic-TTS v1 checkpoint release

Specifications & access

Indic-TTS v1 Language Releases specifications
DetailValue and conditions
Launch date
AccessDownloadable
Model identifiersIndic-TTS v1Indic-TTS AssameseIndic-TTS BengaliIndic-TTS BodoIndic-TTS GujaratiIndic-TTS HindiIndic-TTS KannadaIndic-TTS MalayalamIndic-TTS ManipuriIndic-TTS MarathiIndic-TTS OdiaIndic-TTS RajasthaniIndic-TTS TamilIndic-TTS TeluguIndic-TTS EnglishIndic-TTS PunjabiIndic-TTS English-Hindi
ArchitectureFastPitch produces acoustic features; HiFi-GAN converts them to a waveform.AI4Bharat Indic-TTS project
License scopeThe project repository uses MIT. The release page does not state separate checkpoint-specific terms.AI4Bharat Indic-TTS project
Published weightsSixteen checkpoint ZIP archives.Indic-TTS v1 checkpoint release

Related models

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  • IndicF5

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    Speech-generation model for 11 Indian languages using text, reference audio and its transcript.

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  • Multilingual VITS speech model with predefined voices and styles for 13 Indian languages.

    Launch date not confirmedRestricted accessDownloadable