EVP Ghost Signal - Paranormal Audio Recorder
EVP Ghost Signal
Paranormal Audio Investigator
Record, analyze, and export EVP sessions with real-time anomaly detection, spectrogram visualization, and EMF monitoring. Built for serious investigators.
Two Ways to Investigate
Waveform & Spectrogram
See audio in real time. Swipe between waveform, spectrogram, and EMF views while recording. Orange markers flag anomalies instantly.
EMF Meter
Magnetic field measurement in microtesla using the device magnetometer. Full-circle gauge with color-coded levels and live history graph.
Investigation Recording
- Adjustable gain up to +40 dB for capturing faint signals
- Noise reduction and band-pass filter (300-3000 Hz voice range)
- Tone generator - white noise, pink noise, frequency sweep with adjustable volume
- Bookmark key moments during sessions with red flash confirmation
- Swipe between Waveform, Spectrogram, and EMF views while recording
Real-Time Detection
- Anomaly detection - flags frequency spikes exceeding 3 standard deviations
- Whisper, voice, and breath pattern recognition via formant analysis and spectral flatness
- Live counters and alert banners during recording
- Timestamped events saved for later review and PDF export
Spectrogram Analysis
- Real-time frequency visualization as you record
- Orange crosshair markers on detected anomaly events
- Immersive full-screen mode
- 5 color themes - Ghost Green, Phantom Blue, Infrared, Ultraviolet, Classic Amber
Playback & Editing Pro
- Reverse playback with speed control (0.5x to 2x)
- Waveform trim tool - trimmed clips inherit all metadata and bookmarks
- 5-band parametric EQ with presets: EVP Enhance, Whisper Boost, Noise Cut, Voice Isolate
- Detection timeline with filterable list and tap-to-jump
- On-device transcription using Apple Speech - no data sent anywhere
- Noise reduction and band-pass filter toggle during playback
Export Tools Pro
- HD investigation video (1080x1920 @ 30fps) with animated spectrogram, waveform, EMF meters, detection markers, and timeline
- Filtered audio export with applied EQ and noise reduction
- PDF session reports - multi-page with detection event logs, timestamps, and statistics
- Multi-session investigation log - combine multiple sessions into one report
- Save to Camera Roll for easy sharing on social media
More Features
- Spirit Box - frequency sweep simulator with Forward, Reverse, and Random scan modes
- Investigation map - automatic geolocation tagging with place names and color-coded pins
- Library - search, filter, favorite, and organize your sessions
- 5 color themes throughout the entire app
- Onboarding walkthrough and contextual tips to guide new investigators
Free vs. Pro
| Feature | Free | Pro |
|---|---|---|
| Audio recording with gain & filters | ✓ | ✓ |
| Real-time anomaly & whisper detection | ✓ | ✓ |
| Waveform & spectrogram views | ✓ | ✓ |
| Tone generator | ✓ | ✓ |
| Bookmarks | ✓ | ✓ |
| Spirit Box | ✓ | ✓ |
| 5 color themes | ✓ | ✓ |
| EMF meter | - | ✓ |
| Reverse playback & speed control | - | ✓ |
| Parametric EQ & presets | - | ✓ |
| Waveform trim tool | - | ✓ |
| Audio transcription | - | ✓ |
| HD video export | - | ✓ |
| PDF reports & investigation logs | - | ✓ |
| Filtered audio export | - | ✓ |
| Investigation map | - | ✓ |
Start free. Upgrade anytime - monthly, yearly, or lifetime.
Your data never leaves your device.
No external servers. No third-party SDKs. No analytics. No tracking. No account required.
All signal processing, transcription, and storage happens 100% on-device.
You own your data - delete a recording and it's gone forever.
Start your investigation
Free download with optional Pro upgrade for advanced tools.
EVP Ghost Signal is for entertainment and research purposes. Anomaly and whisper detections are based on signal processing algorithms and do not guarantee the presence of paranormal phenomena. The app does not claim to detect or communicate with paranormal entities.