#channel-economy
- 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 …
- 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 …
- 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 …
- 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 …
- 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 …
- 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. …
- chipmusic.org — Advanced LSDj Tutorial: The Ghost Channel (2013) summaryThe thread accompanying tyler-barnes 's video tutorial ( s-tylerbarnes-ghost-channel-tutorial ), and the place the name ghost channel comes from. Its value beyond the video is the reply by nitro2k01 , which supplies the …
- chipmusic.org — LSDJ Advanced Tricks thread (2012) summaryA chipmusic-org thread started by a tracker who had "PU1 as a kick, PU2 as the main melody, WAV as the lower notes, NOISE as hi-hat" and ran out of channels. The replies are the Game Boy scene's consensus on channel …
- Hackaday.io — RetroChallenge 2019: Gameboy Audiohacks (channelhacking, splitting pulse waves) summaryTwo project logs from a coder pair (Quint and utz) who spent RetroChallenge 2019 getting more than four voices out of a DMG-01 in software. Useful to this wiki for two things: an outside definition of the ghost-channel …
- TW #33 — 4Channel Lives On (Trixter) summarytrixter 's reply, printed in the "Amiga Debate" section, to a correspondent who said Amiga MODs are as obsolete as the Wright brothers' plane.