README.md

metadata

language:
  - fa
license: apache-2.0
library_name: onnx
tags:
  - automatic-speech-recognition
  - fastconformer
  - persian
  - fa
  - onnx
  - fp16
  - on-device
  - webgpu
  - ctc
base_model: Reza2kn/shenava-fa-fastconformer-115m

Shenava v4 — FastConformer-115M CTC — fp16 ONNX (in-browser / on-device)

fp16 ONNX export of the CTC head of Reza2kn/shenava-fa-fastconformer-115m, for onnxruntime-web (WebGPU / WASM) and onnxruntime. Powers the offline Persian captioner at VisualEars.com.

• Input: processed_signal float32 [1, 80, 2005] — 80-dim log-mel features over a fixed 20.05 s window (NeMo FastConformer preprocessor; configs 115m_preprocessor.json + 115m_mel_filters.json included).
• Outputs: logits [1, 251, 1025] (CTC, blank id 1024) and encoded_lengths. Greedy-CTC decode with 115m_tokens.json; truncate logits to ceil(real_mel_frames / 8) before collapse.
• Golden6669 WER: 7.92% (CTC, official Persian normalizer). The parent's RNNT head scores 7.29%.
• Streaming: the deployed app streams by full-context re-decode of a growing buffer — zero accuracy penalty.

Fully offline, on-device. Part of the VisualEars project (SLT 2026).