{ "model": "parakeet-ctc-0.6b-zh-cn-full-pipeline", "language": "zh-CN (Mandarin Chinese Simplified)", "source": "parakeet-ctc-riva-0-6b-unified-zh-cn_vtrainable_v3.0", "sample_rate": 16000, "max_audio_seconds": 15.0, "encoder_dim": 1024, "time_steps": 188, "vocab_size": 7000, "blank_id": 7000, "components": { "preprocessor": { "file": "Preprocessor.mlpackage", "input": { "audio_signal": [1, 240000], "audio_length": [1] }, "output": { "mel": [1, 80, 1501], "mel_length": [1] }, "size": "816KB", "compute_units": "CPU_ONLY" }, "encoder_v1": { "file": "Encoder-v1-fp32.mlpackage", "version": "v1 (float32)", "input": { "audio_signal": [1, 80, 1501], "length": [1] }, "output": { "encoder_output": [1, 1024, 188], "encoded_length": [1] }, "precision": "float32", "size": "1.1GB", "cer_100_samples": "10.45%" }, "encoder_v2": { "file": "Encoder-v2-int8.mlpackage", "version": "v2 (int8 quantized)", "input": { "audio_signal": [1, 80, 1501], "length": [1] }, "output": { "encoder_output": [1, 1024, 188], "encoded_length": [1] }, "precision": "int8 (linear symmetric per-channel)", "size": "0.55GB", "compression": "2x", "cer_100_samples": "10.54%", "cer_difference": "+0.09%" }, "decoder": { "file": "Decoder.mlpackage", "description": "CTC decoder head (linear projection)", "input": { "encoder_output": [1, 1024, 188] }, "output": { "ctc_logits": [1, 188, 7001] }, "size": "14MB" } }, "benchmarks": { "dataset": "FLEURS Mandarin Chinese (cmn_hans_cn)", "samples": 100, "total_audio": "1104.8s", "v1_fp32": { "mean_cer_normalized": "10.45%", "median_cer": "5.97%", "latency": "53.2ms", "rtfx": "214.7x" }, "v2_int8": { "mean_cer_normalized": "10.54%", "median_cer": "5.97%", "latency": "49.3ms", "rtfx": "229.3x" } } }