119 lines
3.2 KiB
Markdown
119 lines
3.2 KiB
Markdown
# Space & Time
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Spatial effects position sounds in the stereo field and add depth through delays and reverbs.
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## Pan
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Pan positions a sound in the stereo field.
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```forth
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hat -0.5 pan . ( slightly left )
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perc 1 pan . ( hard right )
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kick 0 pan . ( center )
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```
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| Parameter | Range | Description |
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|-----------|-------|-------------|
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| `pan` | -1 to 1 | Stereo position (-1 = left, 0 = center, 1 = right) |
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## Width
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Width controls the stereo spread using mid-side processing.
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```forth
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pad 1.5 width . ( wider stereo )
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pad 0 width . ( mono )
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```
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| Parameter | Range | Description |
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|-----------|-------|-------------|
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| `width` | 0+ | Stereo width (0 = mono, 1 = unchanged, 2 = exaggerated) |
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## Haas Effect
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The Haas effect delays one channel slightly, creating a sense of stereo width and spatial placement.
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```forth
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snare 15 haas . ( 15ms delay on right channel )
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```
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| Parameter | Range | Description |
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|-----------|-------|-------------|
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| `haas` | ms | Delay time (1-10ms = subtle width, 10-35ms = distinct echo) |
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## Delay
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Delay is a send effect that creates echoes. The `delay` parameter sets how much signal is sent to the delay bus.
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```forth
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snare 0.3 delay 0.25 delaytime 0.5 delayfeedback .
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```
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| Parameter | Range | Description |
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|-----------|-------|-------------|
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| `delay` | 0-1 | Send level |
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| `delaytime` | seconds | Delay time |
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| `delayfeedback` | 0-0.95 | Feedback amount |
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| `delaytype` | type | Delay algorithm |
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### Delay Types
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| Type | Description |
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|------|-------------|
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| `standard` | Clean digital repeats |
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| `pingpong` | Bounces between left and right |
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| `tape` | Each repeat gets darker (analog warmth) |
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| `multitap` | 4 taps with swing control via feedback |
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```forth
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snare 0.4 delay pingpong delaytype .
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pad 0.3 delay tape delaytype .
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```
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## Reverb
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Reverb is a send effect that simulates acoustic spaces. The `verb` parameter sets the send level.
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```forth
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snare 0.2 verb 2 verbdecay .
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pad 0.4 verb 4 verbdecay 0.7 verbdamp .
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```
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| Parameter | Range | Description |
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|-----------|-------|-------------|
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| `verb` | 0-1 | Send level |
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| `verbdecay` | seconds | Reverb tail length |
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| `verbdamp` | 0-1 | High frequency damping |
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| `verbpredelay` | ms | Initial delay before reverb |
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| `verbdiff` | 0-1 | Diffusion (smears transients) |
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| `verbtype` | type | Reverb algorithm |
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### Reverb Types
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| Type | Description |
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|------|-------------|
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| `dattorro` | Plate reverb, bright and metallic shimmer |
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| `fdn` | Hall reverb, dense and smooth |
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```forth
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snare 0.3 verb dattorro verbtype . ( plate )
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pad 0.5 verb fdn verbtype . ( hall )
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```
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## Comb Filter
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The comb filter creates resonant pitched delays, useful for Karplus-Strong string synthesis and metallic tones.
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```forth
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white 0.5 comb 220 combfreq 0.9 combfeedback . ( plucked string )
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```
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| Parameter | Range | Description |
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|-----------|-------|-------------|
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| `comb` | 0-1 | Send level |
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| `combfreq` | Hz | Resonant frequency |
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| `combfeedback` | 0-0.99 | Feedback (higher = longer decay) |
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| `combdamp` | 0-1 | High frequency damping |
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Higher feedback creates longer, ringing tones. Add damping for more natural string-like decay.
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