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taud: panning law toggle

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minjaesong
2026-04-26 20:08:02 +09:00
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TAUD_NOTE_EFFECTS.md
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@@ -749,6 +749,27 @@ NOTE: **`3.00` — is No-op**
---
# Effects That Modifies Global Behaviour
Effects in this section modifies the behaviour of the mixer. Primary intention of the commands is to provide switches for legacy tracker and modern DAW behaviours.
## 1 $01xx — Set stereo panning law
**Plain.** Sets how the mixer should treat the panning. Available modes are:
- 0: Linear panning mode (tracker-accurate). Centre panning gets 3 dB boost. Default setting.
- 1: Equal-power panning mode. L/R amplitude is at 0.707 when centre-panned.
**Implementation.**
- Mode 0:
- L_gain = if (pan < 0x80) 1.0 else 1.0 - (pan - 128.0) / 128.0
- R_gain = if (pan < 0x80) pan / 128.0 else 1.0
- Mode 1:
- L_gain = cos(pi*x / 512.0)
- R_gain = sin(pi*x / 512.0)
---
# ProTracker to Taud conversion table
This table maps each PT effect to its Taud equivalent. Arguments follow PT's two-nibble form and expand to Taud's 16-bit form as shown.