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* feat(parakeet-cpp): real segment timestamps (NeMo-faithful)
Offline: replace the single synthetic whole-clip segment with multiple
segments grouped exactly like NeMo's get_segment_offsets - a new segment
after sentence-ending punctuation ('. ? !'), each carrying start/end and
its time-window token ids. The optional model option segment_gap_threshold
(NeMo's unit: encoder FRAMES, default 0=off) adds NeMo's silence-gap split,
converted to seconds via the JSON frame_sec the engine now reports.
Per-segment words are still gated behind timestamp_granularities=["word"];
a zero-word document falls back to a single text segment.
Streaming: when libparakeet.so exposes the ABI v4 JSON entry points
(probed), drive parakeet_capi_stream_feed_json / _finalize_json and
accumulate the streamed per-word timestamps into per-utterance segments
(EOU stays the boundary), so streaming FinalResult segments now carry
start/end. Falls back to the text-only feed against an older library.
Pure-Go specs cover splitWordsIntoSegments (punctuation + gap rules, NeMo
elif order, fallback), transcriptResultFromDoc (multi-segment, token
windows, word-granularity gate), and the streaming segmenter.
Assisted-by: Claude:claude-opus-4-8 [Claude Code]
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
* docs(audio): document parakeet-cpp segment timestamps + segment_gap_threshold
Assisted-by: Claude:claude-opus-4-8 [Claude Code]
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
* test(parakeet-cpp): update model-gated specs for multi-segment output
The offline AudioTranscription specs asserted the old single synthetic
segment (Segments HaveLen(1), Segments[0].Text == res.Text). With
NeMo-faithful segmentation a multi-sentence clip now yields multiple
punctuation-delimited segments, so assert the new contract instead:
one-or-more time-ordered segments, each with text and (under word
granularity) per-segment words whose span tracks the segment start/end.
Caught by running the model-gated suite on the dgx (GB10) against the
real tdt_ctc-110m + realtime_eou models.
Assisted-by: Claude:claude-opus-4-8 [Claude Code]
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
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Signed-off-by: Ettore Di Giacinto <mudler@localai.io>
Co-authored-by: Ettore Di Giacinto <mudler@localai.io>