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Merged
mishan merged 2 commits into from
Oct 3, 2026
Merged

dsp: six-operator FM, DX7 algorithms 5, 16, 22 and 32 #332

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env: dx, the DX7's envelope
mishan Oct 3, 2026
c17788e
dsp: DX7 algorithms 5, 16, 22 and 32 on six operators
mishan Oct 3, 2026
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21 changes: 21 additions & 0 deletions docs/NODES.md
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Expand Up @@ -246,6 +246,27 @@ ADSR Envelope Generator
| `play` | out | 1 while the note is sounding | | 0 to 1 | | |
| `position` | state | | | | | |

### env::dx

DX7 Envelope (four rates, four levels, in dB)

| Arg | Dir | Description | Default | Range | Units | Values |
|---|---|---|---|---|---|---|
| `r1` | in | Rate of the first segment, toward l1 | | 0 to 99 | | |
| `r2` | in | Rate of the second segment, toward l2 | | 0 to 99 | | |
| `r3` | in | Rate of the third segment, toward l3, where it holds | | 0 to 99 | | |
| `r4` | in | Rate of the release, toward l4 | | 0 to 99 | | |
| `l1` | in | Level the first segment heads for | | 0 to 99 | | |
| `l2` | in | Level the second segment heads for | | 0 to 99 | | |
| `l3` | in | Level the third heads for and holds while the key is down | | 0 to 99 | | |
| `l4` | in | Level the release heads for | | 0 to 99 | | |
| `trigger` | in | Note Trigger: 0 released, 1 held, 2 held by the pedal | | 0 to 2 | | |
| `note` | in | The MIDI note, for rate scaling | | 0 to 127 | | |
| `ratescale` | in | How much faster every segment runs up the keyboard | | 0 to 7 | | |
| `out` | out | The envelope, as an amplitude | | 0 to 1 | full scale | |
| `play` | out | 1 while the note is sounding | | 0 to 1 | | |
| `state` | state | | | | | |

### env::dynmap

Maps a stream to a new value range (dynamic)
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