Forensics Engine

AI Vocal Forensics Lab

Forensic Context: Addresses listener controversies where heavily autotuned pop vocals are mistakenly labeled as "AI generated". Use the acoustic probe below to isolate the 2.4 kHz formant corridor and 8 kHz sibilance region to contrast hard pitch quantization with neural diffusion phase smearing.
Dual-Mode Spectrogram & Spectral Flux
PIPELINE: OVERPRODUCED DSP BAND: FULL SPECTRUM (20Hz - 20kHz) 60 FPS
0.00s
Forensic Bandpass Filter Isolator
Center Frequency2400 Hz
Filter Q (Resonance / Bandwidth)2.8 Q
Diagnostic Classifier
Forensic Assessment
Aggressive Studio DSP (Over-tuned)
Rigid pitch lock detected with zero retune transition latency. Fundamental harmonics remain phase-coherent with no neural diffusion smearing. Track shows classic pop comping and auto-tune artifacts, not generative AI.
Pitch Quantization Variance 1.2 cents
Phase Coherence Index 0.54
Formant Transition Roughness 0.78
Custom Audio Stem Dropzone
Loaded: Bundled Preset (Pony Pop Stem)
How to tell the difference:

• Auto-Tune / Melodyne: Instantaneous stair-step transitions between target semitones, but crystal-clear upper sibilance (>8 kHz) with intact phase relations.

• Neural Vocoders (Suno/Udio/DDSP): Mushy phase alignment, watery high-frequency flutter, and missing glottal pulses during consonant onsets.

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