| Preset Name | Shift (Hz) | LFO Modulation | Dry / Wet | Space Profile | Silence Voids | Short Description | Action |
|---|---|---|---|---|---|---|---|
| Subtle Vocal Doubler | +3 Hz | Sine ±2 Hz @ 0.5 Hz | 50% | Office (35 mĀ³) | Off | Subtle micro-pitch drift and warm early reflections for vocal presence. | |
| Deep Sci-Fi Void Resonator | -150 Hz | Saw R ±50 Hz @ 2.0 Hz | 100% Wet | Cathedral (85k mĀ³) | Active (Mute 1-2k, 8.5-9.5k) | Sub-harmonic pitch dive with cavernous tail and carved spectral silence voids. | |
| Acoustic Room Normalizer | 0 Hz | Off | 0% (Bypass) | Standard (90 mĀ³) | Off | Transparent linear dry passthrough for acoustic baseline testing. | |
| Wideband Ring-Mod Disrupter | +750 Hz | Triangle ±250 Hz @ 5.0 Hz | 90% Wet | Auditorium (2.8k mĀ³) | Active | Fast non-harmonic frequency sweeping with dual speech/sibilance voids. | |
| Whisper Isolation Pod | +10 Hz | S&H ±5 Hz @ 1.0 Hz | 75% Wet | Booth (2.5 mĀ³) | Off | Tight 2.5 mĀ³ reflection damping with gentle stochastic jitter. | |
| Pure Spectral Void Sieve | 0 Hz | Off | 100% Wet | Standard (90 mĀ³) | Active (Muted) | 0 Hz neutral passthrough with zero-energy voids at 1ā2 kHz and 8.5ā9.5 kHz. |
Emits a 60ms acoustic impulse, computes the Schroeder energy decay curve (T20 → RT60) through your room's microphone, and compares the physical acoustic properties to the target Space Profile.
| Preset ID | Acoustic Space Profile | Physical Volume | RT60 Decay | Air Resonance | Description / Character | Action |
|---|---|---|---|---|---|---|
booth |
Vocal Isolation Pod Lower Limit | 2.5 mĀ³ | 0.08 s | 520 Hz | Micro-chamber, tight specular reflections, hyper-dry modal damping. | |
office |
Small Studio / Bedroom | 35 mĀ³ | 0.35 s | 240 Hz | Treated residential acoustic space with typical wall boundary damping. | |
standard |
Standard Tracking Space DEFAULT | 90 mĀ³ | 0.75 s | 175 Hz | Authentic off-axis studio condenser microphone baseline ambience. | ✔ ACTIVE |
auditorium |
Concert Recital Hall | 2,800 mĀ³ | 1.80 s | 95 Hz | Expansive lateral early reflection spread with balanced spectral decay. | |
cathedral |
Cathedral / Aircraft Hangar Upper Limit | 85,000 mĀ³ | 5.50 s | 48 Hz | Colossal space, 45ms discrete pre-delay, cavernous air absorption tail. |
| Column / Parameter | Acoustic Definition | DSP Simulation Implementation | Perceptual Audio Impact |
|---|---|---|---|
| Preset ID | Internal programmatic identifier representing a calibrated acoustic preset configuration. | Acts as the lookup key in AudioEngine.createVirtualRoomStream() selecting filter coefficients and cached impulse buffers. |
Enables instantaneous, click-free switching between architectural room models. |
| Acoustic Space Profile | Physical architectural classification modeling real-world structural geometry and reflective boundary materials. | Configures early reflection timing, convolution impulse duration, and high-frequency atmospheric damping factors. | Establishes perceived room scale, proximity to reflective boundaries, and spatial presence. |
| Physical Volume | Total enclosed three-dimensional air volume (V) measured in cubic meters (mĀ³), spanning 2.5 mĀ³ to 85,000 mĀ³. | Calculates mean free path (l = 4V/S) and impulse buffer allocation (L = fs Ć tir). | Controls boundary bounce frequency; smaller volumes sound tight and boxy, larger volumes sound massive and spacious. |
| RT60 Decay | Reverberation Time 60āthe exact time in seconds required for sound energy density to decay by 60 dB (Sabine formula: RT60 ā 0.161 Ć V / A). | Sample-by-sample exponential decay envelope: h(t) = noise(t) Ć e-t / Ļ where Ļ = RT60 / ln(1000). | Determines trail duration. Short times (0.08 s) produce dry intimacy; long times (5.5 s) sustain shifted harmonic tails. |
| Air Resonance | Dominant fundamental cavity resonant mode of the enclosed air mass combined with structural draft. | 2nd-order Biquad bandpass filter (f0 in Hz, Q-factor) filtering a looped pink noise bed. | Injects physical air presenceāfrom micro-booth boxiness (520 Hz) to subterranean infrasonic rumble (48 Hz). |
| Description / Character | Perceptual acoustic signature detailing reflection density, pre-delay gap, and atmospheric frequency absorption. | Calculates initial silence pre-delay offsets (0 ms to 45 ms) and distance attenuation curves: 1 / (1 + Ī±Ā·t). | Imparts authentic off-axis boundary coloration, specular vs. diffuse spread, and distance perception. |