Feat: adapt cagire to doux v0.0.12

docs/engine/modulation.md

@@ -16,34 +16,6 @@ saw 5 vib 0.5 vibmod .       ( 5 Hz, 0.5 semitone depth )
 | `vibmod` | semitones | Modulation depth |
 | `vibshape` | shape | LFO waveform (sine, tri, saw, square) |
 
-## Pitch Envelope
-
-The pitch envelope applies an ADSR to the oscillator frequency.
-
-```forth
-sine 100 freq 24 penv 0.001 patt 0.1 pdec .
-```
-
-| Parameter | Description |
-|-----------|-------------|
-| `penv` | Envelope depth in semitones |
-| `patt` | Attack time in seconds |
-| `pdec` | Decay time in seconds |
-| `psus` | Sustain level (0-1) |
-| `prel` | Release time in seconds |
-
-## Glide
-
-Glide interpolates between pitch changes over time.
-
-```forth
-saw c4 0.1 glide .           ( 100ms glide )
-```
-
-| Parameter | Range | Description |
-|-----------|-------|-------------|
-| `glide` | seconds | Glide time |
-
 ## FM Synthesis
 
 FM modulates the carrier frequency with a modulator oscillator.
@@ -58,7 +30,7 @@ sine 440 freq 2 fm 2 fmh .   ( modulator at 2× carrier frequency )
 | `fmh` | ratio | Harmonic ratio (modulator / carrier) |
 | `fmshape` | shape | Modulator waveform |
 
-FM has its own envelope (`fme`, `fma`, `fmd`, `fms`, `fmr`).
+Use `env` to apply a DAHDSR envelope to FM depth: `0 5 0.01 0.1 0.3 0.5 env fm`.
 
 ## Amplitude Modulation