Device Details
Overview
| Name | Version: | Lumina-2A 1.0 |
| Author: | DarlingLee |
| Device Type: | Audio Effect |
| Description: | Lumina-2A is a Max for Live (M4L) device that recreates the classic optical compressor LA-2A, featuring a custom-designed External Object for the audio processing engine. Compression Engine *Peak detector (non-RMS, RMSdet = false), sample-by-sample processing *Program-dependent attack: built-in 120-point attack time lookup table attimes[], dynamically interpolated by overdb — attack varies with compression depth *Program-dependent release: reltime = overdb / 25.0, release time adapts to the amount of gain reduction *Soft/Hard Knee: soft knee uses a quadratic curve for gradual transition, ratio ramps from 1 to target within the knee region; hard knee switches slope directly at threshold *Feedback sidechain topology: compressed signal is scaled by grv and fed back into the detection path, then filtered through HPF + LPF Filter Chain (IIR Biquad Direct Form I) *SCLC: 2nd-order HPF, ~27.5 semitones *SCHC: 2nd-order LPF, ~84.59 semitones *HS: 2nd-order High Shelf, ~85.24 semitones, -2dB attenuation *LS: 2nd-order Low Shelf, ~35.78 semitones, 0dB Output Stage *Hard clip → soft saturation waveshaping y = volcompdist * (1+foo) * x / (1+foo * |x|) ==================================================== Lumina-2A 是一个复刻经典光学压缩器LA-2A的M4L装置。自主设计声音处理模块外部对象(External Object)，对LA-2A的压缩特征，声音特征进行复刻： 压缩引擎 *Peak 检测器（非 RMS，RMSdet = false），采样级逐点处理 *Program-dependent 起控时间：内置 120 点的起控时间查找表 attimes[]，根据 overdb 动态查表插值，attack 随压缩深度自动变化 *Program-dependent 释放时间：reltime = overdb / 25.0，释放速度跟随压缩量自适应 *Soft/Hard Knee：soft knee 时用二次曲线渐变过渡，ratio 在 knee 区内从 1 渐进到目标值；hard knee 时在阈值处直接切换斜率 *反馈式侧链拓扑（feedback topology）：压缩后的信号经 grv 缩放后送回检测路径，再经过 HPF + LPF 滤波 滤波器链（IIR Biquad Direct Form I） *SCLC：二阶高通（HPF），频率约 27.5 semitones *SCHC：二阶低通（LPF），频率约 84.59 semitones *HS：二阶高架（High Shelf），频率约 85.24 semitones，-2dB 衰减 *LS：二阶低架（Low Shelf），频率约 35.78 semitones，0dB 输出级 *Hard clip 限幅 → 软饱和 Waveshaping y = volcompdist (1+foo) x / (1+foo * |x|) |
Details
| Live Version Used: | 12.4.2 |
| Max Version Used: | 9.1.4 |
| Date Added: | Jul 20 2026 15:26:46 |
| Date Last Updated: | No Updates |
| Downloads: | 0 |
| Website: | https://darlinglee.gumroad.com/l/lumina2a |
| ⓘ License: | Commercial |
Average Rating
Log in to rate this device |
-n/a- |
Login to comment on this device.
Browse the full library