SoundEngg: RTA Audio Analyzer

Built for live sound engineers, FOH system technicians, monitor mixers, studio engineers, and AV installers, SoundEngg is the all-in-one offline RTA spectrum analyzer, acoustic transfer function console, and PA system calculator toolkit.

Whether you are time-aligning delay towers at an outdoor festival, designing a cardioid subwoofer array, ringing out stage monitors, or verifying amplifier impedance loads, SoundEngg replaces a rack of hardware audio utilities with a rugged, zero-latency mobile workstation—no internet connection required on site.

1. REAL-TIME RTA SPECTRUM ANALYZER & TRANSFER FUNCTION CONSOLE
• 60FPS Real-Time Analyzer (RTA) with 1/1, 1/3, 1/6, 1/12, and 1/24 octave fractional resolution and high-resolution FFT spectrum analysis.
• Live Dual-Channel Transfer Function engine displaying Magnitude, Phase (deg), and Coherence traces for PA system tuning and crossover alignment.
• 3D Waterfall Spectrogram for spotting room resonance decay, acoustic reflections, and live feedback frequencies.
• Multi-Trace Snapshot Memory: Capture, store, and overlay up to 4 reference measurement curves (Traces A, B, C, D) to compare FOH and venue zones.
• Custom Microphone Calibration Loader: Import standard .CAL and .TXT mic calibration files for lab-grade acoustic measurement accuracy.

2. SPEAKER DELAY & ACOUSTIC PULSE ALIGNMENT CALCULATOR
• Compute exact delay tower and fill speaker alignment in milliseconds (ms), meters (m), feet (ft), and 48kHz / 96kHz DSP sample offsets.
• Real-time speed-of-sound compensation using live venue temperature and relative humidity.
• Acoustic Pulse Delay Finder: Measure speaker arrival time down to 0.05 ms and export a sample-accurate 48kHz Alignment Click (.WAV) track.
• One-tap FOH Alignment Share Card export for sharing DSP delay specs with your system crew.

3. SUBWOOFER ARRAY & CARDIOID DISPERSION CALCULATOR
• Design directional bass arrays to keep low-end energy off the stage and focused on the audience.
• Supports End-Fire Arrays, Gradient Cardioid, 4-Box Cardioid, and CSA Subwoofer Array configurations.
• Interactive 2D Polar Dispersion Map with real-time stage cancellation (dB), physical cabinet spacing, rear DSP delay, and polarity inversion readouts.

4. SPEAKER IMPEDANCE, OHM & AMPLIFIER POWER CALCULATOR
• Calculate total load impedance (Ohms) and power distribution for Parallel, Series, and Series-Parallel speaker cabinet wiring.
• Automatic amplifier headroom safety analysis and per-cabinet Watt (RMS) delivery calculation.

5. REFERENCE AUDIO SIGNAL & TONE GENERATOR
• Precision Sine Wave frequency generator (20 Hz – 20 kHz) with interactive logarithmic sweep, fine Hz stepping, and musical note locking.
• Calibrated Pink Noise, White Noise, and Polarity Pulse generator for PA system EQ tuning and speaker phase checks.

6. 1/6 OCTAVE ISO EAR TRAINING LAB
• Train your ears to identify surgical EQ boosts and cuts across Octave, 1/3 Octave, and pro 1/6 Octave ISO frequency bands.
• Practice with Pink Noise or load custom reference audio tracks with instant Dry/Processed A/B comparison.

7. TAP TEMPO BPM & FX DELAY SUBDIVISION CALCULATOR
• Rolling-average BPM tap detector with instant millisecond readouts for Quarter (1/4), Dotted, and Triplet delay subdivisions.

8. OFFLINE AUDIO PINOUT DATABASE & 100+ SYSTEM ENGINEERING GUIDES
• Field wiring diagrams for XLR, SpeakON (NL2/NL4/NL8), RJ45 Network Audio, PowerCON, TRS, RCA, and DB25 D-Sub.
• 100+ in-depth live sound engineering guides covering line array physics, RF coordination, digital mixing consoles, and gain staging.

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