# Hearing your partner: licences

The listener in AuraSense AAC (aac-web) downloads one speech model and a voice activity detector, on request, and runs them on the person's device, on its graphics chip. What is heard there is turned into text there: nothing is recorded or sent anywhere.

## Nemotron 3.5 ASR Streaming 0.6B

- NVIDIA Nemotron 3.5 ASR Streaming 0.6B by NVIDIA, in soniqo's fp16 ONNX export, its graphs edited to run on WebGPU. Licence: OpenMDW-1.1 (https://openmdw.ai/license/1-1/); the text is `licences/OpenMDW-1.1.2ab44b683654.txt`.
- Silero VAD v6.2.3 by the Silero Team, its graph edited to run on WebGPU. Licence: MIT (https://github.com/snakers4/silero-vad/blob/v6.2.3/LICENSE); the text is `licences/MIT-silero-vad.2e63e9a38b6e.txt`.
- Source: https://huggingface.co/soniqo/Nemotron-3.5-ASR-Streaming-Multilingual-0.6B-ONNX-FP16/tree/76daabfd0aaf5ec6ef1e6640eae3b364af6c9970 (NVIDIA's https://huggingface.co/nvidia/nemotron-3.5-asr-streaming-0.6b/tree/ea30d66debe3740a08b573244286791d423d6b3e), with https://github.com/snakers4/silero-vad/tree/v6.2.3 (silero_vad_16k_sequence.onnx); graphs edited to run on WebGPU.
- What was changed: the graphs only, so that every node runs on WebGPU in onnxruntime-web 1.30 (shapes folded, the attention mask rebuilt in int32, the mel front end merged into the encoder, the prediction net, joint and ArgMax fused into one step, the LSTMs unrolled, the VAD's first convolution padded to 132 channels); the weights are NVIDIA's and Silero's own, in 24 files of at most 64 MiB, each named by its own SHA-256 (1.24 GB).
- soniqo's model card names the NVIDIA Open Model License, the licence NVIDIA's model had when soniqo exported it; NVIDIA has since published the model under OpenMDW-1.1 (its model card, revision ea30d66d), which this app follows.
- Ready in: Arabic (ar), German (de), English (en), Spanish (es), French (fr), Italian (it), Japanese (ja), Korean (ko), Portuguese (pt), Russian (ru), Ukrainian (uk), Vietnamese (vi).

The runtime that runs it (onnxruntime-web, MIT) is vendored with its own licence, notice and ONNX Runtime's third-party notices (`ThirdPartyNotices.txt`) under `vendor/onnxruntime-web-<version>-<revision>/`.