Add ONNX export of nvidia/stt_ca_conformer_ctc_large for onnx-asr

.gitattributes

@@ -33,3 +33,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 *.zip filter=lfs diff=lfs merge=lfs -text
 *.zst filter=lfs diff=lfs merge=lfs -text
 *tfevents* filter=lfs diff=lfs merge=lfs -text
+model.onnx_data filter=lfs diff=lfs merge=lfs -text

README.md

@@ -0,0 +1,33 @@
+---
+license: cc-by-4.0
+library_name: onnx-asr
+tags:
+- automatic-speech-recognition
+- onnx
+- nemo
+pipeline_tag: automatic-speech-recognition
+---
+
+# nvidia-ca-conformer-ctc-large-onnx
+
+NVIDIA NeMo ASR model exported to ONNX for the
+[onnx-asr](https://github.com/istupakov/onnx-asr) library and the
+[ovos-stt-plugin-onnx-asr](https://github.com/OpenVoiceOS/ovos-stt-plugin-onnx-asr)
+OpenVoiceOS STT plugin.
+
+Converted from [nvidia/stt_ca_conformer_ctc_large](https://huggingface.co/nvidia/stt_ca_conformer_ctc_large) (cc-by-4.0).
+Decoder: CTC (`model.onnx`) — `model_type: nemo-conformer-ctc`, features_size 80,
+subsampling_factor 4.
+
+```python
+import onnx_asr
+model = onnx_asr.load_model("OpenVoiceOS/nvidia-ca-conformer-ctc-large-onnx")
+print(model.recognize("audio.wav"))
+```
+
+Or via OpenVoiceOS config:
+
+```json
+{"stt": {"module": "ovos-stt-plugin-onnx-asr",
+         "ovos-stt-plugin-onnx-asr": {"model": "OpenVoiceOS/nvidia-ca-conformer-ctc-large-onnx"}}}
+```

config.json

@@ -0,0 +1,6 @@
+{
+  "model_type": "nemo-conformer-ctc",
+  "features_size": 80,
+  "subsampling_factor": 4,
+  "max_tokens_per_step": 10
+}

model.int8.onnx

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+size 143924803

model.onnx

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+size 646561

model.onnx_data

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+size 506408960

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