SonicDNACollector vs Callback Freeverb

Capture the DNA of your analog gear. SonicDNA Collector turns your iPhone and USB audio interface into a professional measurement station for digital modeling. ■ IR Capture — Impulse Response Recording Record studio-quality impulse responses from any analog gear: • Automated ESS (Exponential Sine Sweep) measurement • Farina deconvolution for accurate IR extraction • Export to 7 formats: Universal, Helix, Axe-FX, Quad Cortex, NAM, ToneX, Kemper • Quality scoring with SNR, T60, spectral analysis • 96kHz/24bit capture, 48kHz WAV export ■ NAM Capture — Neural Amp Modeler Training Data Create training datasets for Neural Amp Modeler: • Capture input/output signal pairs through your amp or pedal • Automated frame synchronization and resampling • Export matched WAV pairs (48kHz/16bit) ready for NAM training • Build your own amp/pedal models from real hardware ■ Precision Measurements • Log Sine Sweep: Frequency response analysis (20Hz–20kHz) • Gain Staircase: THD vs. gain characterization at multiple drive levels • Real-time FFT spectrum and VU metering • Session management with JSON metadata ■ Professional Audio Engine • 96kHz/24bit recording via USB audio interface • Real-time spectrum analysis with vDSP-optimized FFT • THD (Total Harmonic Distortion) measurement • Impulse response visualization ■ Library & Export • All captures automatically saved to Library • Share via AirDrop, Files, or any compatible app • Organized by session with full metadata ■ Who Is This For? • Guitarists & producers creating amp/cab IR collections • Developers building NAM or profiling models • Audio engineers archiving vintage equipment characteristics • Anyone who wants to digitally preserve analog tone ■ Requirements • iOS 17.0 or later • USB audio interface (e.g., ZOOM AMS-22, Focusrite, etc.) • Analog equipment to capture ■ Notes • This app can output 0dBFS test signals — please manage speaker/headphone volume carefully • Microphone permission is required for recording via audio interface • No internet connection required — fully offline operation

A classic algorithmic reverb effect based on the Freeverb algorithm by Jezar at Dreampoint. A Freeverb-style Schroeder/Moorer reverb based on the classic 8-comb + 4-allpass topology, with simplified controls and no stereo spread. This reverb creates lush, spacious ambience through a network of comb and allpass filters. Freeverb is widely used in electronic music production, ambient music, and sound design to add depth, space, and atmosphere to audio sources. The algorithm provides a smooth, musical reverb tail that works well on everything from vocals to synthesizers. This reverb only functions in mono and provides no stereo imaging, and the user can expect the same behavior as a classic Freeverb implementation otherwise.