| NVIDIA Nemotron Speech Streaming EN 0.6B — ONNX FP16 export (1120ms latency) |
| ======================================================================= |
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|
| Licensed by NVIDIA Corporation under the NVIDIA Open Model License |
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|
| This repository is an ONNX (FP16) export of the original NeMo checkpoint produced |
| directly from NVIDIA's official Hugging Face repository. It is a derivative work |
| distributed under the same license that governs the source model. |
|
|
| Source model |
| ------------ |
| Repository : nvidia/nemotron-speech-streaming-en-0.6b |
| URL : https://huggingface.co/nvidia/nemotron-speech-streaming-en-0.6b |
| Revision : 7a9b763e6c5fb103da690219c049fac917aa50b1 |
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| Conversion details |
| ------------------ |
| Export method : NeMo toolkit ASRModel.export() to ONNX |
| ONNX opset : 17 |
| att_context_size: [70, 13] (1120ms streaming latency) |
| Precision : FP16 weights with FP32-typed graph I/O (Cast-wrapped). |
| The cache-aware pre_encode subsampling front-end is retained |
| in FP32 for converter compatibility; the 24-layer Conformer |
| body runs in FP16. |
| Chunk geometry : chunk_mel_frames = 112, pre_encode_cache_frames = 9, |
| total_input_frames = 121, chunk_audio_samples = 17920 |
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| License |
| ------- |
| NVIDIA Open Model License Agreement (see LICENSE.txt for the full text). |
| URL: https://www.nvidia.com/en-us/agreements/enterprise-software/nvidia-open-model-license/ |
|
|
| NOTE: This model is governed by the NVIDIA Open Model License. |
| It is NOT licensed under CC-BY-4.0 (a tag that has appeared on some |
| third-party exports of this checkpoint and is incorrect). |
|
|
| Toolkit versions used (full list in conversion/dep_baseline_nemo_export_env_macos.txt) |
| -------------------------------------------------------------------------------------- |
| python 3.12.13 |
| nemo_toolkit 2.7.3 |
| torch 2.12.1+cpu |
| torchaudio 2.11.0+cpu |
| onnx 1.22.0 |
| onnxruntime 1.27.0 |
| onnxconverter-common 1.16.0 |
| sentencepiece 0.2.1 |
| numpy 1.26.4 |
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| Reproducibility |
| --------------- |
| The export and conversion scripts (export_nemotron.py, convert_fp16.py) are |
| included in the conversion/ folder of this repository. |
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|
