EVP Ghost Signal

Professional EVP recorder with real-time anomaly detection, spectrogram analysis, EMF monitoring, and HD investigation video export. Built for serious investigators.

EVP Ghost Signal is a professional-grade paranormal audio investigation tool. Record, analyze, and export EVP (Electronic Voice Phenomenon) sessions with real-time detection, spectrogram visualization, and EMF monitoring.

INVESTIGATION RECORDING

• High-quality audio recording with adjustable gain (up to +40 dB)
• Noise reduction and band-pass filter (300-3000 Hz voice range)
• Swipe between Waveform, Spectrogram, and EMF views while recording
• Tone generator (white noise, pink noise, frequency sweep) with adjustable volume
• Bookmark key moments during recording

REAL-TIME DETECTION

• Anomaly detection flags frequency spikes exceeding 3 standard deviations
• Whisper, voice, and breath pattern detection via formant analysis
• Live detection counters and alert banners during recording
• All events saved with timestamps for later review

SPECTROGRAM ANALYSIS

• Real-time frequency visualization with 5 color themes
• Orange crosshair markers on anomaly events
• Immersive full-screen mode
• Ghost Green, Phantom Blue, Infrared, Ultraviolet, and Classic Amber themes

EMF METER (Pro)

• Magnetic field measurement in microtesla using device magnetometer
• Full-circle gauge with color-coded levels (Normal to Extreme)
• Live history graph with spike markers
• EMF data saved with recordings and included in exports

PLAYBACK & EDITING (Pro)

• Reverse audio playback with speed control (0.5x-2x)
• Tap-to-seek waveform navigation
• Waveform trim tool — trimmed clips inherit all metadata
• 5-band parametric EQ with presets: EVP Enhance, Whisper Boost, Noise Cut, Voice Isolate
• Detection timeline with filterable list and tap-to-jump
• Timestamp bookmarks with red flash confirmation
• On-device audio transcription

EXPORT TOOLS (Pro)

• HD investigation video (1080x1920 @ 30fps) with animated spectrogram, waveform, EMF meters, detection flash, and timeline markers
• Filtered audio export with applied EQ and filters
• Multi-page PDF session reports with detection event logs
• Multi-session investigation log PDF
• Save videos to Camera Roll

ADDITIONAL FEATURES

• Spirit Box frequency sweep simulator (Forward, Reverse, Random)
• Session geolocation tagging with place names
• Session map with color-coded pins
• Investigation library with search and favorites
• 5 color themes throughout the app
• Contextual tips and How to Use guide
• Onboarding walkthrough

PRIVACY & ON-DEVICE PROCESSING

• 100% on-device — no data is ever sent to external servers
• No third-party SDKs, no analytics, no tracking
• All recordings, detections, EMF data, and bookmarks stored locally on your device
• Audio transcription runs entirely on-device using Apple Speech
• Signal processing (FFT, anomaly detection, whisper detection) all performed locally
• Location data stored only on your device and never shared
• No account or login required
• You own your data — delete a recording and it's gone forever

EVP Ghost Signal is designed for serious paranormal investigators, ghost hunters, and anyone curious about EVP research. The app uses scientific signal processing techniques — no gimmicks. Your privacy is respected: everything stays on your device.

Note: This app 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.

Support URL: https://myrcbox.com/evp-ghost-signal/

Marketing URL: https://myrcbox.com/evp-ghost-signal/