Google MedASR

This section describes how to use Google MedASR with sherpa-onnx.

At present, sherpa-onnx provides an offline English CTC model:

• sherpa-onnx-medasr-ctc-en-int8-2025-12-25

The model implementation in sherpa-onnx is in

• https://github.com/k2-fsa/sherpa-onnx/blob/master/sherpa-onnx/csrc/offline-medasr-ctc-model.h

You can find related export and test scripts in

• https://github.com/k2-fsa/sherpa-onnx/tree/master/scripts/medasr

Quick start

Download the model:

wget https://github.com/k2-fsa/sherpa-onnx/releases/download/asr-models/sherpa-onnx-medasr-ctc-en-int8-2025-12-25.tar.bz2
tar xvf sherpa-onnx-medasr-ctc-en-int8-2025-12-25.tar.bz2
rm sherpa-onnx-medasr-ctc-en-int8-2025-12-25.tar.bz2

Then run:

cd /path/to/sherpa-onnx

./build/bin/sherpa-onnx-offline \
  --tokens=./sherpa-onnx-medasr-ctc-en-int8-2025-12-25/tokens.txt \
  --medasr=./sherpa-onnx-medasr-ctc-en-int8-2025-12-25/model.int8.onnx \
  ./sherpa-onnx-medasr-ctc-en-int8-2025-12-25/test_wavs/0.wav \
  ./sherpa-onnx-medasr-ctc-en-int8-2025-12-25/test_wavs/1.wav \
  ./sherpa-onnx-medasr-ctc-en-int8-2025-12-25/test_wavs/2.wav

Examples

We provide MedASR examples for several APIs:

• C: https://github.com/k2-fsa/sherpa-onnx/blob/master/c-api-examples/medasr-ctc-c-api.c

• C++: https://github.com/k2-fsa/sherpa-onnx/blob/master/cxx-api-examples/medasr-ctc-cxx-api.cc

• Python: https://github.com/k2-fsa/sherpa-onnx/blob/master/python-api-examples/offline-medasr-ctc-decode-files.py

• JavaScript (Node.js): https://github.com/k2-fsa/sherpa-onnx/blob/master/nodejs-examples/test-offline-medasr-ctc.js

• Node.js addon: https://github.com/k2-fsa/sherpa-onnx/blob/master/nodejs-addon-examples/test_asr_non_streaming_medasr_ctc.js

• Kotlin: https://github.com/k2-fsa/sherpa-onnx/blob/master/kotlin-api-examples/test_offline_medasr_ctc.kt

• Swift: https://github.com/k2-fsa/sherpa-onnx/blob/master/swift-api-examples/medasr-ctc.swift

• Dart: https://github.com/k2-fsa/sherpa-onnx/blob/master/dart-api-examples/non-streaming-asr/bin/medasr-ctc.dart

• C#: https://github.com/k2-fsa/sherpa-onnx/blob/master/dotnet-examples/offline-decode-files/run-medasr-ctc.sh

• Pascal: https://github.com/k2-fsa/sherpa-onnx/blob/master/pascal-api-examples/non-streaming-asr/medasr_ctc.pas

See also

• Google MedASR

• https://github.com/k2-fsa/sherpa-onnx/blob/master/scripts/medasr/README.md