Indic ASR API

Installation Instructions

conda create -n ai4b_asr python=3.8
conda activate ai4b_asr
pip install torch torchvision torchaudio
git clone https://github.com/NVIDIA/NeMo.git
cd NeMo
bash reinstall.sh
cd ..
git clone https://github.com/AI4Bharat/indic-asr-api-backend.git
cd indic-asr-api-backend
pip install -r requirements.txt

Download models

mkdir -p models
wget -P models https://objectstore.e2enetworks.net/indic-asr-public/external/checkpoints/english/en-conformer-ctc.nemo
wget -P models https://objectstore.e2enetworks.net/indic-asr-public/checkpoints/conformer/stt_hi_conformer_ctc_large_v2.nemo

Usage

Starting the server:

python api.py

This will start the server on port 4992. Keep this process running. You can modify the PORT in api.py.

Running inference:

Here we show how to access the API using an example (on a new terminal) -

python example_ai4b_asr_rest_api.py

Output:

Play Audio

Response: <Response [200]>
Text: deposit five thousand rupees in my bank account

Deployment using Triton-Inference-Server

Refer to serving page for more details!