Plugins¶

Plugin parameters are stored as normalized float32 values from 0 to 1 (see plugin records). The reader converts the parameters listed here; any other parameter is printed raw with --all. compose never touches plugins: they are kept byte for byte.

Where plugins are stored:

Where	Location	Records
track / bus insert slots 1–6	`FLStudioModelBA`	`bmd:<Name>:<ID>` with kind, column, slot 0–5, owner 2
track built-in FX	`FLStudioModelBA`	slot 6 Voice Isolation, 7 Dialogue Leveler, 8 Dialogue Separator, 9 Music Remixer, 10 Ducker
clip built-in FX	the clip's own `FieldsBlob`	see Clips & edits

Conversion formulas¶

p is the stored normalized value.

Plugin	Parameter	UI value
De-Esser	`BMDDeesser::RANGE` (frequency)	700 · (9000 / 700)^p Hz, shown with 3 significant digits
	`BMDDeesser::AMOUNT`	100 · p %
	`BMDDeesser::MODE`	0 = narrow band, 0.5 = centered bell
	`Deesser::REACTION`	0.5 = medium (only value seen)
	`BMDDeesser::ESS_ONLY`	flag (“S only”)
Vocal Channel	`BMDVocalChannel::COMP_THRES`	−40 + 40p dB
	`BMDVocalChannel::COMP_RATIO`	1.1 + 5.9p (`x:1`)
	`BMDVocalChannel::COMP_GAIN`	20p dB
	`BMDVocalChannel::COMP_REACTION`	as-is (0–1)
	`HPF_IN` / `EQ_IN` / `COMP_IN`	flags (high-pass, EQ, compressor sections)
Limiter	`BMDLimiter::INPUT_GAIN`	−18 + 36p dB
	`BMDLimiter::THRESHOLD` (ceiling)	−24 + 24p dBTP
	`BMDLimiter::RELEASE`	lookup: 0.8829 = 190.55 ms (only value calibrated)
	`BMDLimiter::SOFT`	flag
Voice Isolation (track built-in slot 6, or clip)	`BMDVoiceIsolationControl::DRY_MIX`	100 · p = amount (37 → 0.3701, 82 → 0.8201, 55 → 0.55)
Dialogue Leveler (clip)	`UI_BAS_PRESET`	mode = 3p: 0 allow wider dynamics, 1 optimize moderate levels, 2 more lift for low levels, 3 lift soft whispery sources
	`UI_ADV_RIDER_ON` / `UI_BAS_LIFTER_ON` / `UI_BAS_CLEANER_ON`	flags: reduce loud dialogue / lift soft dialogue / background reduction
	`UI_BAS_OUTPUT_GAIN`	6p dB (range 0–6 dB)

A flag is ON when p ≥ 0.5. A lookup value that is not in the table prints 未較正(raw=…).

Generated from the map¶

Plugin	Parameter	Label	Kind	Stored value → UI	Mark
Voice Isolation	`BMDVoiceIsolationControl::DRY_MIX`	`amount`	linear	0 + (100 − 0) × p	² `two_point`
Dialogue Leveler	`UI_BAS_PRESET`	`mode`	enum	0 → 0 ALLOW_WIDER_DYNAMICS, 0.333333 → 1 OPTIMIZE_MODERATE_LEVELS, 0.666667 → 2 MORE_LIFT_FOR_LOW_LEVELS, 1 → 3 LIFT_SOFT_WHISPERY_SOURCES	`direct`
Dialogue Leveler	`UI_ADV_RIDER_ON`	`reduce_loud`	flag	≥ 0.5 = on	`direct`
Dialogue Leveler	`UI_BAS_LIFTER_ON`	`lift_soft`	flag	≥ 0.5 = on	`direct`
Dialogue Leveler	`UI_BAS_CLEANER_ON`	`background_reduction`	flag	≥ 0.5 = on	`direct`
Dialogue Leveler	`UI_BAS_OUTPUT_GAIN`	`output_gain`	linear	0 + (6 − 0) × p dB	² `two_point`
De-Esser	`BMDDeesser::RANGE`	`freq`	log	700 × (9000 / 700)^p Hz	² `two_point`
De-Esser	`BMDDeesser::MODE`	`mode`	enum	0 → narrow band, 0.5 → centered bell	※ `calib`
De-Esser	`BMDDeesser::AMOUNT`	`amount`	linear	0 + (100 − 0) × p %	² `two_point`
De-Esser	`Deesser::REACTION`	`reaction`	enum	0.5 → medium	※ `calib`
De-Esser	`BMDDeesser::ESS_ONLY`	`s_only`	flag	≥ 0.5 = on	`direct`
Vocal Channel	`BMDVocalChannel::HPF_IN`	`hp_on`	flag	≥ 0.5 = on	`direct`
Vocal Channel	`BMDVocalChannel::EQ_IN`	`eq_on`	flag	≥ 0.5 = on	`direct`
Vocal Channel	`BMDVocalChannel::COMP_IN`	`comp_on`	flag	≥ 0.5 = on	`direct`
Vocal Channel	`BMDVocalChannel::COMP_THRES`	`threshold`	linear	-40 + (0 − -40) × p dB	² `two_point`
Vocal Channel	`BMDVocalChannel::COMP_RATIO`	`ratio`	linear	1.1 + (7 − 1.1) × p :1	² `two_point`
Vocal Channel	`BMDVocalChannel::COMP_REACTION`	`response`	linear	0 + (1 − 0) × p	`direct`
Vocal Channel	`BMDVocalChannel::COMP_GAIN`	`gain`	linear	0 + (20 − 0) × p dB	² `two_point`
Limiter	`BMDLimiter::INPUT_GAIN`	`input`	linear	-18 + (18 − -18) × p dB	² `two_point`
Limiter	`BMDLimiter::THRESHOLD`	`ceiling`	linear	-24 + (0 − -24) × p dBTP	² `two_point`
Limiter	`BMDLimiter::RELEASE`	`release`	enum	0.882927 → 190.55 ms	※ `calib`
Limiter	`BMDLimiter::SOFT`	`soft`	flag	≥ 0.5 = on	`direct`

Linear formulas (min + (max − min) × p) were fixed with two or more UI points and the knob scale (range) seen in the UI (two_point); lookups (calib) hold only the values that were read on the UI.

Track Voice Isolation on/off¶

The track built-in Voice Isolation (slot 6) has no on/off parameter. It is bit 0x10 of the record's u32 state flags at offset 272 from the tag:

Bit `0x10`	Meaning
clear	enabled
set	disabled — the amount stays stored

Verified by toggling it in the UI on two tracks: only that one byte changes (the two records are 768 bytes apart), and the amount is unchanged.
Verified with the scripting API Timeline.SetVoiceIsolationState: the API then reports amount 0 for a disabled track, although the stored amount stays.
The parameter registry (marker 0x77668866) also changes, but it is not needed to read the state.
Unused built-in slots also carry 0x10. For insert plugins (2 has been seen) and the other built-in FX the flags are not decoded; --all prints them as state_flags.

The reader prints it as Voice Isolation.enabled (ON / OFF), usable in --expect.

Not decoded¶

Plugin bypass (insert slots).
Track-level Dialogue Leveler settings: the track record carries no UI_… parameters until they are set in the UI, and they cannot be set through the API.
Parameters of other plugins (Vocal Channel EQ bands, Dialogue Separator, Music Remixer, Ducker, third-party plugins): raw with --all.