Streaming speech models, as ONNX
The speech recognition models used by Rhyme Station,
a freestyle rap trainer, to turn the microphone into words as they are spoken. The app downloads
the one it is set to use from here, as do its tools/fetch_model.sh and tools/fetch_model.cmd.
Nothing here was trained or converted by this organization. The files are unmodified copies, kept here so the app has a stable place to download from, and each model stays under the license its authors gave it: see the file in its folder.
| Folder | Size | Model | ONNX export | License |
|---|---|---|---|---|
sherpa-onnx-nemotron-3.5-asr-streaming-0.6b-560ms-int8-2026-06-11 |
682 MB | nvidia/nemotron-3.5-asr-streaming-0.6b | csukuangfj2 | OpenMDW-1.1 |
sherpa-onnx-streaming-zipformer-en-kroko-2025-08-06 |
71 MB | Banafo/Kroko-ASR, English community model | csukuangfj | CC BY-SA |
Both are streaming transducers in the layout sherpa-onnx
expects: an encoder, a decoder, a joiner and tokens.txt, with 8-bit quantized weights.
- Nemotron is the more accurate, most of all on casual speech, and understands many
languages (the language is set per stream, for example
en,jaorauto). Its chunk size is 560 ms. - Kroko is English only, a tenth of the size and several times faster, which suits a phone.
| File | SHA-256 |
|---|---|
sherpa-onnx-nemotron-…/encoder.int8.onnx |
012e9321373af99021415e0b0eb3ec827b4be3153be6f30d9b448fe65e896e68 |
sherpa-onnx-nemotron-…/decoder.int8.onnx |
19f9c98fc6d0a2c33a65a43b36fdb2e914c26c0aa9764be3aebc502a1e982fb0 |
sherpa-onnx-nemotron-…/joiner.int8.onnx |
4101c7c679a0bc30483794b27a059e34e79232aa2068d78d51231a22c8b0d7ce |
sherpa-onnx-nemotron-…/tokens.txt |
729cc103155bafa785f9cd45746cd41cabe97eab7182fc04d594129587958f8a |
sherpa-onnx-streaming-zipformer-en-kroko-…/encoder.onnx |
d4881c57449d581e0770fd53fa66c2fdc6cd167d92ece7c715e603defc96d9d4 |
sherpa-onnx-streaming-zipformer-en-kroko-…/decoder.onnx |
455ba38466fce8d5a57e7db68a323b684079ca4d9e1dd93a740d9b2429aae3b1 |
sherpa-onnx-streaming-zipformer-en-kroko-…/joiner.onnx |
d406f616736350e2a7df3e39398b78eb2fc1a2ca6973a19d3853fa3227e25b52 |
sherpa-onnx-streaming-zipformer-en-kroko-…/tokens.txt |
396dbeb5f4858875690716084f54e90d339679d0ba3e6b5b584f3d7589254d2d |