technique
- Channel interleaving (one channel, two jobs) techniqueWhen channels are scarce, interleave: bass note on every even 16th, melody notes on the odd ones. Played fast, the ear separates them into two lines — a bassline and a lead — from a single channel. The same idea works …
- Chip samples — tiny looped waveforms techniqueIn a sample tracker, a "chip" is a very small looped sample — a single waveform cycle or a few hundred bytes of a real instrument — that stands in for a sound-chip voice. A chiptune module is built from nothing else, …
- Chord arpeggio (the 0 3 7 trick) techniqueChips rarely have enough channels for real chords, so one channel cycles through the chord tones extremely fast. At roughly 25–50 notes per second the ear fuses them into one shimmering chord — the signature chiptune …
- Detune techniqueIf you can spare a channel, play the lead on two channels a few cents apart (or use a fine-tune setting). The slow beating between them sounds huge — the chip version of a supersaw. Small detune (5–10 cents) = fat; …
- Fake echo / delay techniqueRepeat each melody note after a fixed time (say 3 or 6 pattern rows) at much lower volume, and again even quieter. On a spare channel it becomes a lush echo; on the same channel, placed in the gaps of the melody, it …
- Filter programming on the SID techniqueThe sid has one filter shared by its three voices: an 11-bit cutoff, a resonance nybble, per-voice on/off switches ( $D417 ) and a band selection — low-pass, band-pass or high-pass ( $D418 ). Sweeping cutoff and …
- Ghost channel (two notes in one wave) techniqueOne wave channel playing two notes at once. Instead of alternating between them in time, the two waveforms are added together inside the same single-cycle wave — a low fundamental with a faster wave riding on top of it …
- Hard restart techniqueA player-routine trick that gates a sid voice off and loads a special ADSR value one or two frames before the next note, so that every note's attack starts from a known envelope state. It exists because of the SID's …
- Instrument design beats note count techniqueA lot of "chiptune magic" is in the instrument, not the pattern: a fast pitch drop at note start makes a kick out of any voice; a couple of frames of noise before a tone makes a snare or a pluck; a tiny downward pitch …
- Instrument envelopes (volume, panning, pitch) techniqueIn impulse-tracker (and FT2) an instrument wraps a sample with envelopes — volume, panning and, in IT, pitch — drawn as nodes over ticks, optionally with a sustain loop that holds while the note is on and a normal loop. …
- Lead articulation (velocity, legato, late vibrato, drop-off) techniqueMaking a sampled or synth lead sound played : per-note volume (velocity), legato slides between notes, vibrato that arrives late, staccato and grace notes, an echo, and the "drop-off" at the end of a big note. A tracked …
- Levels and headroom techniqueNot "how loud", but how much room is left above the loudest thing playing . Every layer of a chiptune has its own ceiling — a 4-bit register on the chip, a 00–40 or 00–80 scale in the tracker, 0 dBFS in the render — and …
- MIDI output from trackers (Impulse Tracker macros) techniquePlaying an external synthesizer from the pattern: a MIDI instrument sends NOTE ON/OFF with the note and volume column, and MIDI controllers (volume, modulation, pan, program change, sysex) are written as macros — Zxx …
- Multisampling and drum-kit instruments techniqueOne sample cannot cover a keyboard: transposed more than a few semitones it sounds artificial — ±7 at the very most, often only ±1 (source: s-tw084-perfect-samples-the-piano ) . Multisampling records several keys and …
- Multispeed (framespeed) techniqueCalling the player routine more than once per frame. sid-wizard supports up to 8× framespeed, i.e. 400 Hz SID control instead of 50 Hz, which gives finer resolution for pulse-width-modulation , filter-programming and …
- New Note Actions (NNA) techniqueimpulse-tracker 's answer to channel scarcity: when a new note starts in a channel, the instrument's NNA says what happens to the note still playing — cut , continue , note off (release) or note fade — and the old note …
- Octave bass techniqueThe oldest trick in dance music and chiptune alike: alternate the bass note with the same note one octave up ( 0 12 0 12… ) in straight 8ths or 16ths. Instant drive, zero extra channels. Variants: octave on the …
- OPL / AdLib FM instruments in trackers techniqueA second sound chip inside the PC tracker: scream-tracker-3 plays up to 9 FM voices on a Sound Blaster's Yamaha OPL2 next to its digital channels, and the s3m-format stores such instruments alongside samples; openmpt …
- Pitch slides and tone portamento techniqueGliding into a note (tone portamento) or bending a note's pitch up/down (pitch slide) — the cheapest way to add emotion. Classic uses: slide up into the highest note of a phrase, slide down at the end of a phrase, slow …
- Pulse width modulation (PWM) techniqueA pulse wave's character depends on its duty cycle: 50 % is hollow and round, 25 % brassy, 12.5 % thin and nasal. Sweeping the width while a note plays makes a single channel sound alive — the classic C64/ sid shimmer …
- Randomization and probability (MayBe, RandomiZe) techniqueLetting the tracker decide: notes that play only sometimes, table hops that happen with a probability, and command values with a random offset. Cheap variation for hi-hats, fills and long loops — every pass sounds …
- Recording samples (sources, cabling, sound cards, rates) techniqueGetting a sound from a synth, CD, tape or microphone into a sample cleanly: the part of sampling that happens before sample-looping and multisampling . Cowboy's 1996 article is the wiki's source on the hardware chain …
- Retrigger and resync techniqueRe-playing the current note at a fixed tick rate without new note rows: drum rolls, ratchets, stutters, and — with a falling volume — a one-channel echo. "Resync" restarts the sound generator itself at a very high rate, …
- Reverb and compression (offline, in the sample editor) techniqueA tracker mixes samples dry. Room, depth and punch therefore have to be baked into the samples beforehand in a sample editor (Airon's examples are Cool Edit and Sound Forge), or faked inside the tracker with extra …
- Ring modulation and oscillator sync techniqueTwo of the sid 's control-register bits couple a voice to its neighbour: sync ( $02 ) hard-syncs one oscillator to another, ring ( $04 ) replaces a voice's triangle output with a ring-modulated combination of the two. …
- ROM retuning — patching a tracker's pitch table techniqueOverwriting the block of precomputed pitch values inside a tracker's ROM, so that every note in the sequencer plays at a frequency you chose. It is how alternative-tunings are done on the game-boy , and it is also the …
- Sample looping (perfect loops, sustain loops, long loops) techniqueTwo very different things: looping a short cycle so a sampled note sustains forever, and using long loops (drum breaks, guitar riffs) as building blocks that must stay in time with the song. The loop is what separates a …
- Sample offset tricks techniqueThe sample-offset command ( 9xx in ProTracker/MOD, Oxx in impulse-tracker ) starts a sample partway through — in units of 256 bytes, so 00–FF covers 64 KB (the SAx high-order command extends it in IT). Three classic …
- Shuffle, swing and FunkTempo techniqueDelaying every second 16th slightly turns a stiff pattern human — shuffle/swing. Trackers do it with groove or speed settings rather than with note positions (source: s-037-lab ) .
- Sidechain pump techniqueDuck the volume of chords and bass at every beat, then let it swell back before the next one. It creates the breathing, pumping motion of modern dance music — even with no kick drum playing at all (source: s-037-lab ) .
- Song initialisation and looping techniqueMaking a module start and loop correctly in any player — the "finishing touch" most often forgotten, according to catspaw : default speed, tempo and pan positions in the song header apply only once, so a song whose last …
- Sound effects and game audio techniqueThe other half of a game soundtrack: short, non-musical events — a shot, a jump, an explosion, the "Game Over" — fired by the game code, on the same three voices the music is using. It was most of the paid work. …
- Stereo panning techniquePlacing channels left, right or centre to separate parts and make a mix wider. On the game-boy it is a hard switch per channel (left / right / both / none), audible only through the headphone output; on PC trackers it …
- Vibrato and delayed vibrato techniqueA periodic pitch wobble on a held note. The important variant is delayed vibrato: the note lands straight, then the vibrato fades in — real singers and lead synths don't wobble immediately. Straight attack + late …
- Volume slides, fades and effect memory techniqueThe first effect most trackers learn — and, per the Modsquad, "the one effect that makes or breaks the song" (source: s-tw077-chip-off-the-block ) . Understanding it means understanding frames : speed Axx is frames per …
- Wavetable programming (waveform / arp tables) techniqueChanging a voice's waveform (and pitch) every frame from a table — the way C64 instruments get their attack transients, percussion and arpeggios. A couple of frames of noise before a tone makes a snare or a pluck; a …