Voices

Overview

Every track has a voice — the sound engine that produces audio when a step triggers. INBOIL includes both drum and synth voices, all synthesized in real-time (no samples, except the Sampler voice).

Select a track and use the Dock panel to edit its voice parameters:

909 Kick

OSC

100 TONE

29 PSTRT

3 PEND

16 PDCY

NOISE

0 NOIS

22 FREQ

11 Q

LP FTYP

METAL

0 METL

60 MFRQ

AMP

17 DCY

32 DRIV

0 HP

60 CLCK

1 BRST

40 GAP

Drum Voices

All drum voices share a common synthesis engine with four parameter groups: OSC (tone oscillator), NOISE, METAL (metallic oscillator), and AMP.

Label	Voice	Character
909K	909 Kick	Punchy analog kick
808K	808 Kick	Deep sub bass kick
SNARE	Snare	Noise + tone snare
CLAP	Clap	Layered handclap (burst mode)
C.HH	Closed HH	Short metallic hat — chokes open hat
O.HH	Open HH	Ringing metallic hat
CYM	Cymbal	606-style noise+sine through BP filter
TOM	Tom	Pitched drum
RIM	Rimshot	Sharp transient
BELL	Cowbell	Metallic bell
SHKR	Shaker	Noise-based shaker
CRSH	Crash	Crash cymbal
RIDE	Ride	Ride cymbal

Key Parameters

Param	Group	Description
PSTRT / PEND	OSC	Pitch start → end (sweep range)
PDCY	OSC	Pitch sweep speed
TONE	OSC	Tone oscillator level
NOIS	NOISE	Noise level
FREQ / Q	NOISE	Noise filter frequency & resonance
METL / MFRQ	METAL	Metallic oscillator level & frequency
DCY	AMP	Amplitude decay
DRIV	AMP	Distortion amount
CLCK	AMP	Transient click
BRST / GAP	AMP	Burst count & gap (clap layering)

Different drum voices use different combinations of these parameters. For example, KICK uses mainly OSC + AMP, while C.HH emphasizes METAL + NOISE.

Synth Voices

BASS (303-style Acid Bass)

Monophonic bass synth inspired by the Roland TB-303.

CUT — Filter cutoff
MOD — Filter envelope depth
RESO — Filter resonance
DCY — Amplitude decay
DRIV — Distortion

The BASS voice responds to slide (SLD) for portamento glides — essential for acid patterns.

BASS — Analog (Analog Bass)

Monophonic bass synth with a simpler parameter set.

CUT / MOD / RESO — Filter section
DCY — Amplitude decay

LEAD (Analog Synth)

Monophonic lead synth with full ADSR envelope and built-in arpeggiator.

CUT / MOD / RESO / FDCY — Filter section
ATCK / ADCY / SUST / RLS — Amp ADSR envelope
ARP / RATE / CHRD / AOCT — Arpeggiator (OFF / UP / DOWN / U-D / RND)

10% ATK

30% DCY

60% SUS

40% REL

FM (4-Op FM Synth)

4-operator FM synth with 8 algorithms.

FM operator routing — tap to switch algorithm

ALG — Routing algorithm (8 patterns)
R1–R4 — Operator frequency ratios
L1–L4 — Operator output levels
D1–D4 — Operator decay times
FB — OP1 self-feedback
ATK / REL — Carrier attack & release
LFO — Rate, depth, waveform, destination

Poly modes: MONO / POLY 12 / WIDE 6 / UNISON

WAVE (Wavetable)

Dual-oscillator morphing wavetable synth with unison and LFO.

0% WAVE

Morph between waveforms: saw → square → tri → sine → pulse

WV-A / WV-B — Wavetable position for each oscillator
MIX — Oscillator A/B mix
COMB — Combine mode (MIX / FM / RING)
CUT / FMOD / RESO / FTYP — Filter (LP / HP / BP / NTCH)
DRIV — Post-filter saturation
UNI / SPRD / WIDE — Unison voices, detune spread, stereo width
ATCK / DCY / SUST / RLS — Amp ADSR envelope
LFO 1 — LFO with tempo sync
LFO 2 — Free-running LFO

Poly modes: MONO / POLY 16 / WIDE 8 / UNISON

Switching Voices

Use the Dock tabs (DRUM / SYNTH / SMPL) to change a track’s voice category, then select the specific voice. The change takes effect immediately — existing steps keep their triggers but play with the new sound.

Presets & Per-Step Lock — save and recall sounds
Sampler — sample-based voice
Effects — processing chain