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furnace/doc/3-pattern/effects.md
tildearrow 9da4e1c236 don't mention Generic Sample ins type on sample ch 
ips that have their own ins types
2023-09-10 23:57:46 -05:00

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# effect list
some of the effect numbers are taken from ProTracker / FastTracker 2.
however, effects are continuous, which means you only need to type it once and then stop it with an effect value of `00` or no effect value at all.
## volume
- `0Axy`: **Volume slide.**
- if `x` is 0 then this slides volume down by `y` each tick.
- if `y` is 0 then this slides volume up by `x` each tick.
- `FAxy`: **Fast volume slide.** same as `0Axy` above but 4× faster.
- `F3xx`: **Fine volume slide up.** same as `0Ax0` but 64× slower.
- `F4xx`: **Fine volume slide down.** same as `0A0x` but 64× slower.
- `F8xx`: **Single tick volume slide up.** adds `x` to volume on first tick only.
- `F9xx`: **Single tick volume slide down.** subtracts `x` from volume on first tick only.
- ---
- `07xy`: **Tremolo.** changes volume to be "wavy" with a sine LFO. `x` is the speed. `y` is the depth.
- tremolo is downward only.
- maximum tremolo depth is -60 volume steps.
## pitch
- `E5xx`: **Set pitch.** `00` is -1 semitone, `80` is base pitch, `FF` is nearly +1 semitone.
- `01xx`: **Pitch slide up.**
- `02xx`: **Pitch slide down.**
- `F1xx`: **Single tick pitch slide up.**
- `F2xx`: **Single tick pitch slide down.**
- ---
- `03xx`: **Portamento.** slides the currently playing note's pitch toward the new note. `x` is the slide speed.
- a note _must_ be present with this effect for it to work.
- the effect stops automatically when it reaches the new note.
- `E1xy`: **Note slide up.** `x` is the speed, while `y` is how many semitones to slide up.
- `E2xy`: **Note slide down.** `x` is the speed, while `y` is how many semitones to slide down.
- ---
- `EAxx`: **Toggle legato.** while on, new notes instantly change the pitch of the currently playing sound instead of starting it over.
- `00xy`: **Arpeggio.** after using this effect the channel will rapidly switch between semitone values of `note`, `note + x` and `note + y`.
- `E0xx`: **Set arpeggio speed.** this sets the number of ticks between arpeggio values. default is 1.
- ---
- `04xy`: **Vibrato.** changes pitch to be "wavy" with a sine LFO. `x` is the speed, while `y` is the depth.
- maximum vibrato depth is ±1 semitone.
- `E3xx`: **Set vibrato direction.** `xx` may be one of the following:
- `00`: up and down. default.
- `01`: up only.
- `02`: down only.
- `E4xx`: **Set vibrato range** in 1/16th of a semitone.
## panning
not all chips support these effects.
- `08xy`: **Set panning.** changes stereo volumes independently. `x` is the left channel and `y` is the right one.
- `88xy`: **Set rear panning.** changes rear channel volumes independently. `x` is the rear left channel and `y` is the rear right one.
- `81xx`: **Set volume of left channel** (from `00` to `FF`).
- `82xx`: **Set volume of right channel** (from `00` to `FF`).
- `89xx`: **Set volume of rear left channel** (from `00` to `FF`).
- `8Axx`: **Set volume of rear right channel** (from `00` to `FF`).
- ---
- `80xx`: **Set panning (linear).** this effect behaves more like other trackers:
- `00` is left.
- `80` is center.
- `FF` is right.
## time
- `09xx`: **Set speed/groove.** if no grooves are defined, this sets speed. if alternating speeds are active, this sets the first speed.
- `0Fxx`: **Set speed 2.** during alternating speeds or a groove, this sets the second speed.
- ---
- `Cxxx`: **Set tick rate.** changes tick rate to `xxx` Hz (ticks per second).
- `xxx` may be from `000` to `3FF`.
- `F0xx`: **Set BPM.** changes tick rate according to beats per minute. range is `01` to `FF`.
- ---
- `0Bxx`: **Jump to order.** `x` is the order to play after the current row.
- this marks the end of a loop with order `x` as the loop start.
- `0Dxx`: **Jump to next pattern.** skips the current row and remainder of current order. `x` is the row at which to start playing the next pattern.
- this can be used to shorten the current order as though it had a different pattern length.
- `FFxx`: **Stop song.** stops playback and ends the song. `x` is ignored.
## note
- `0Cxx`: **Retrigger.** repeats current note every `xx` ticks.
- this effect is not continuous; it must be entered on every row.
- `ECxx`: **Note cut.** ends current note after `xx` ticks. for FM instruments, it's equivalent to a "key off".
- `EDxx`: **Note delay.** delays note by `x` ticks.
## other
- `9xxx`: **Set sample position.** jumps current sample to position `xxx * 0x100`.
- not all chips support this effect.
- `EBxx`: **Set LEGACY sample mode bank.** selects sample bank. used only for compatibility.
- does not apply on Amiga.
- `EExx`: **Send external command.**
- this effect is currently incomplete.
- `F5xx`: **Disable macro.**
- `F6xx`: **Enable macro.**
- see macro table at the end of this document for possible values.
additionally, [each chip has its own effects](../7-systems/README.md).
## macro table
ID | macro
-----|-----------------------------
`00` | volume
`01` | arpeggio
`02` | duty/noise
`03` | waveform
`04` | pitch
`05` | extra 1
`06` | extra 2
`07` | extra 3
`08` | extra A (ALG)
`09` | extra B (FM)
`0A` | extra C (FMS)
`0B` | extra D (AMS)
`0C` | panning left
`0D` | panning right
`0E` | phase reset
`0F` | extra 4
`10` | extra 5
`11` | extra 6
`12` | extra 7
`13` | extra 8
| | **operator 1 macros**
`20` | AM
`21` | AR
`22` | DR
`23` | MULT
`24` | RR
`25` | SL
`26` | TL
`27` | DT2
`28` | RS
`29` | DT
`2A` | D2R
`2B` | SSG-EG
`2C` | DAM
`2D` | DVB
`2E` | EGT
`2F` | KSL
`30` | SUS
`31` | VIB
`32` | WS
`33` | KSR
`40` | **operator 2 macros**
`60` | **operator 3 macros**
`80` | **operator 4 macros**
the interpretation of duty, wave and extra macros depends on chip/instrument type:
ex | FM | OPM | OPZ | OPLL | AY-3-8910 | AY8930 | Lynx | C64 |
---|--------|-----------|-----------|-------|------------|------------|----------|------------|
D | NoiseF | NoiseFreq | | | NoiseFreq | NoiseFreq | Duty/Int | Duty |
W | | LFO Shape | LFO Shape | Patch | Waveform | Waveform | | Waveform |
1 | | AMD | AMD | | | Duty | | FilterMode |
2 | | PMD | PMD | | Envelope | Envelope | | Resonance |
3 | LFOSpd | LFO Speed | LFO Speed | | AutoEnvNum | AutoEnvNum | | Special |
A | ALG | ALG | ALG | | AutoEnvDen | AutoEnvDen | | |
B | FB | FB | FB | | | Noise AND | | |
C | FMS | FMS | FMS | | | Noise OR | | |
D | AMS | AMS | AMS | | | | | |
4 | OpMask | OpMask | | | | | | Test/Gate |
5 | | | AMD2 | | | | | |
6 | | | PMD2 | | | | | |
7 | | | LFO2Speed | | | | | |
8 | | | LFO2Shape | | | | | |
ex | SAA1099 | X1-010 | Namco 163 | FDS | Sound Unit | ES5506 | MSM6258 |
---|----------|------------|------------|-----------|------------|-----------|----------|
D | | | Wave Pos | | Duty | Filt Mode | FreqDiv |
W | Waveform | Waveform | Waveform | Waveform | Waveform | | |
1 | Envelope | EnvMode | WaveLen | Mod Depth | Cutoff | Filter K1 | ClockDiv |
2 | | Envelope | WaveUpdate | Mod Speed | Resonance | Filter K2 | |
3 | | AutoEnvNum | WaveLoad W | | Control | Env Count | |
A | | AutoEnvDen | WaveLoad P | | | Control | |
B | | | WaveLoad L | | | | |
C | | | WaveLoad T | | | | |
D | | | | | | | |
4 | | | | | PResetTime | EnvRampL | |
5 | | | | | | EnvRampR | |
6 | | | | | | EnvRampK1 | |
7 | | | | | | EnvRampK2 | |
8 | | | | | | Env Mode | |
ex | QSound | SNES | MSM5232 |
---|--------------|-----------|-----------|
D | Echo Level | NoiseFreq | GroupCtrl |
W | | Waveform | |
1 | EchoFeedback | Special | GroupAtk |
2 | Echo Length | Gain | GroupDec |
3 | | | Noise |
A | | | |
B | | | |
C | | | |
D | | | |
4 | | | |
5 | | | |
6 | | | |
7 | | | |
8 | | | |
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