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wav2vec2-ctc model type).input_lengths for correct behavior with padded/batched input, so the
model works with onnx-asr's plain identity preprocessor (raw 16kHz waveform in).Note: the source model reports WER 33.32 / CER 12.76 on an out-of-domain 1h test set — treat as a usable-but-imperfect low-resource model, not production-grade broadcast-quality ASR.
1import onnx_asr
2
3model = onnx_asr.load_model("OpenVoiceOS/wav2vec2-large-sami-22k-onnx")
4print(model.recognize("test.wav"))model.onnx / model.onnx.data — fp32 ONNX graph (inputs: input_values (batch, samples) float32, input_lengths (batch,) int64; output: logprobs (batch, frames, vocab) float32 log-softmax).vocab.txt — CTC vocabulary in onnx-asr's token id format (word-delimiter -> ▁, pad token -> <blk>).config.json — {"model_type": "wav2vec2-ctc", "subsampling_factor": 320}.onnxruntime.quantization does not
currently support the torch.onnx dynamo-exported graph for this architecture.