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resolving note volume and channel volume conflaton

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minjaesong
2026-05-11 10:40:33 +09:00
parent ebba33a5c3
commit a28fcbcefc
6 changed files with 203 additions and 123 deletions
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9
it2taud.py
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@@ -1360,9 +1360,10 @@ def build_sample_inst_bin_it(samples_or_proxy: list,
dct = idata.get('dct', 0) & 0x03
dca = idata.get('dca', 0) & 0x03
inst_bin[base + 195] = (dca << 2) | dct
# Byte 196: default note volume (per-trigger seed for rowVolume when
# no V column accompanies a fresh trigger). Replaces the old "fold
# sample.vol into IGV" trick — see terranmon byte 196 / TODO §2350.
# Byte 196: default note volume (per-trigger seed for the engine's
# noteVolume axis when no V column accompanies a fresh trigger).
# Replaces the old "fold sample.vol into IGV" trick — see terranmon
# byte 196 / TODO §2350.
inst_bin[base + 196] = default_note_vol & 0xFF
# Bytes 197..255: reserved (already zeroed).
@@ -1450,7 +1451,7 @@ def build_pattern_it(chunk_grid: list, ch_idx: int, default_pan: int,
# Priority: explicit cell vol (vol-col 0-64) > vol-col slide > main-
# effect vol override > nop. Per-trigger default volume now lives
# in byte 196 of the instrument record (DNV); the engine seeds
# rowVolume from it when this row has no V column, so the converter
# noteVolume from it when this row has no V column, so the converter
# still doesn't need to emit SEL_SET=Sv on plain trigger rows.
if cell.volcol >= 0 and cell.volcol <= VC_VOL_HI:
vol_sel, vol_value = SEL_SET, min(cell.volcol, 0x3F)