| # AI4Bharat-TTS Inference |
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| Text-to-Speech models trained by [AI4Bhārat](https://ai4bharat.iitm.ac.in) for 15 major languages spoken in the Indian Republic, supporting both male and female speakers. |
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| ## Details |
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| ### Dataset |
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| The models were trained using [the TTS dataset built by IIT-M's SMT Lab](https://www.iitm.ac.in/donlab/tts/database.php). |
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| ### Languages |
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| The list of 15 languages include Indian-English, 2 Tibeto-Burman languages (Bodo & Meitei from northeast) and 12 Indic languages (4 Dravidian from South-India and 8 Indo-Aryan from Northern-India). |
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| | **Language** | **Code** | **Speakers** | **Script** | **Family** | **Native Region** | |
| |--------------|----------|--------------|------------------------|---------------|---------------------------| |
| | Assamese | as | male, female | Eastern-Nagari | Indo-Aryan | Assam | |
| | Bangla | bn | male, female | Eastern-Nagari | Indo-Aryan | West-Bengal, Bangladesh | |
| | Boro | brx | female | DevaNagari | Tibeto-Burman | Bodoland Territory | |
| | English | en | male, female | Roman | European | -- Lingua franca -- | |
| | Hinglish | en+hi | male, female | Code-mixed | Indo-European | | |
| | Gujarati | gu | male, female | Gujrati | Indo-Aryan | Gujarat | |
| | Hindi | hi | male, female | DevaNagari | Indo-Aryan | Hindi Belt | |
| | Kannada | kn | male, female | Kannada | Dravidian | Karnataka | |
| | Malayalam | ml | male, female | Malayalam | Dravidian | Kerala | |
| | Manipuri | mni | male, female | Meetei, Eastern-Nagari | Tibeto-Burman | Imphal valley (Manipur) | |
| | Marathi | mr | male, female | DevaNagari | Indo-Aryan | Maharashtra | |
| | Oriya | or | male, female | Odia | Indo-Aryan | Odisha | |
| | Panjabi | pa | male, female | Gurumukhi | Indo-Aryan | Eastern-Punjab | |
| | Rajasthani | raj | male, female | DevaNagari | Indo-Aryan | Rajasthan | |
| | Tamil | ta | male, female | Tamil | Dravidian | Tamil Nadu | |
| | Telugu | te | male, female | Telugu | Dravidian | Andhra Pradesh, Telangana | |
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| ## Usage |
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| ### Pre-requisites |
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| 1. Python 3.9+ |
| 2. If Linux, install the following dependencies: |
| ``` |
| cd inference |
| sudo apt-get install libsndfile1-dev ffmpeg enchant |
| ``` |
| (For any other OS, we wish you best of luck) |
| 3. `pip install -r requirements-ml.txt requirements-utils.txt` |
| 4. [Download the models from here](https://github.com/AI4Bharat/Indic-TTS/releases), place them inside a new folder named `checkpoints` and unzip them. |
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| ### Running inference |
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| Check `sample.py` for usage. |
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| ### Hosting REST API server |
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| ``` |
| pip install -r requirements-server.txt |
| uvicorn server:api |
| ``` |
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