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  Complete R16 speech tokenizer stack. Paired SLM: `Streamalign-SLM-R16`
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  (reported metrics: SALMon 69.1, StoryCloze 72.1).
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- ## Contents & how the tokenizer uses them
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  | Path | Role |
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  |------|------|
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- | `rvq_teacher/epoch_16.pt` | **The acoustic tokenizer.** Contains the fine-tuned streaming encoder **and** the R16 residual-VQ quantizer (`hubert_state_dict`: 408 encoder keys + `residual_vq`). This is the checkpoint that actually produces the R16 speech units. R16-specific. |
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- | `alignment_model/` | Char-level streaming Conformer-Transducer (`CKPT+2026-03-15`, `alignment.yaml`). Used as the base model the tokenizer is constructed from; supplies the RNN-T predictor/joiner for char-level alignment. Its encoder is overridden at load by `rvq_teacher`. R-independent. |
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- | `streaming_asr/` | Word-level streaming Conformer-Transducer (`3419_fastemit`, `chunk_streaming_word_fastemit.yaml`, `tokenizer.ckpt`). Generates the chunk TextGrids (word alignment) and drives the boundary classifier. R-independent. |
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  | `boundary_classifier/` | Word-boundary detector for streaming chunking; consumes `streaming_asr`. R-independent. |
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- | `alignment.yaml` | hparams for the extractor / `alignment_model`. |
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  ## Pipeline
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  audio -> `streaming_asr` (word chunks + TextGrids) + `boundary_classifier`
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  -> `alignment_model` scaffold + `rvq_teacher` encoder -> R16 RVQ units.
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- Only `rvq_teacher/epoch_16.pt` is R16-specific; the ASR / alignment /
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- boundary components are shared across R8/R16/R32.
 
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  Complete R16 speech tokenizer stack. Paired SLM: `Streamalign-SLM-R16`
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  (reported metrics: SALMon 69.1, StoryCloze 72.1).
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+ ## Contents & roles
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  | Path | Role |
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  |------|------|
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+ | `rvq_teacher/` | The acoustic tokenizer: the streaming encoder plus the R16 residual-VQ quantizer. Produces the R16 speech units. R16-specific. |
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+ | `alignment_model/` | Char-level streaming Conformer-Transducer. Base scaffold the tokenizer is built on; supplies the RNN-T predictor/joiner for char-level alignment. R-independent. |
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+ | `streaming_asr/` | Word-level streaming Conformer-Transducer. Generates the chunk TextGrids (word alignment) and drives the boundary classifier. R-independent. |
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  | `boundary_classifier/` | Word-boundary detector for streaming chunking; consumes `streaming_asr`. R-independent. |
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+ | `alignment.yaml` | Extractor / `alignment_model` hparams. |
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  ## Pipeline
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  audio -> `streaming_asr` (word chunks + TextGrids) + `boundary_classifier`
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  -> `alignment_model` scaffold + `rvq_teacher` encoder -> R16 RVQ units.
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+ Only `rvq_teacher` is R16-specific; the ASR / alignment / boundary
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+ components are shared across R8/R16/R32.