커밋은 말의 끝이 아니야

def commit_follows_silence(levels: list[float], chunk_s: float,
                           provider_silence_s: float) -> bool:
    """levels: every chunk's RMS since the socket opened, oldest first."""
    if not levels or chunk_s <= 0 or provider_silence_s <= 0:
        return True                           # nothing heard: the commit stands
    ordered = sorted(levels)
    floor = ordered[int(len(ordered) * 0.1)]  # the quietest tenth: the room
    line = max(floor * 3, 300)                 # above this, a chunk is speech
    covered = loud = 0.0
    for level in reversed(levels):            # walk back over the silence window
        if covered >= provider_silence_s:
            break
        covered += chunk_s
        if level > line:
            loud += chunk_s
    return loud * 3 < covered                 # a third or more loud: still talking


LONG_UTTERANCE_S = 30.0


def final_transcript(live_words: str, seconds: float, batch) -> str:
    """Long talks get a second, whole pass; the live words are the fallback."""
    if seconds < LONG_UTTERANCE_S:
        return live_words
    try:
        return batch() or live_words
    except Exception:
        return live_words


CHUNK = 0.128
ROOM = 150.0


def talk(chunks: int) -> list[float]:
    """Speech with the short dips between words that real talk always has."""
    return [ROOM if i % 5 == 4 else 2400.0 for i in range(chunks)]


natural_end = talk(200) + [ROOM] * 24   # he stopped; ~3 s of room tone
forced_cut = talk(280)                  # ~35.8 s in, still mid-sentence
print(commit_follows_silence(natural_end, CHUNK, 3.0))   # True  -> end of speech
print(commit_follows_silence(forced_cut, CHUNK, 3.0))    # False -> keep listening
print(final_transcript("...스물, 스물하나", 132.0, lambda: "...스물, 스물하나, 스물둘 ... 서른아홉"))