Detects fake lossless audio files on Mac by analyzing spectral content
Play any sound backwards online for free
Stage
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Founded
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Based in
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Pricing model
Paid
Free
Pricing
Personal: $24.99 USD (one-time, 1 Mac). Duo: $39 USD (one-time, 2 Macs). Both plans include unlimited file scans, offline and private analysis, free updates, and 30-day money-back guarantee. Free trial: 100 tracks with no time limit and no account required.
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Key features
Full FFT spectral analysis with automatic LOSSLESS, MEDIUM, or FAKE verdict per track
Batch scanning and CSV export of results with verdict, format, bitrate, cutoff frequency and confidence score
Automatic macOS Finder color tags applied directly to files
Rekordbox XML import without drag and drop required
Support for WAV, AIFF, FLAC, ALAC, MP3, AAC, Ogg Vorbis and Opus formats
Folder watch mode with automatic analysis of new tracks
M3U and M3U8 playlist import for Traktor, VirtualDJ and other software
Bulk spectrogram PNG export for analyzed tracks
Completely offline operation with no internet or account required
99% accuracy on transcoding detection based on peer-reviewed research across 2,512 songs
Upload audio files to reverse
Extract and reverse audio from video files
Record audio directly in browser
Compare original and reversed audio
Download as MP3 or WAV file
Reverse singing mode
No account required
Process files on device only
Support for MP4, MOV, WebM video formats
MP3 compression option or WAV lossless format
What makes it different
Native macOS application optimized for Apple Silicon and Intel with full sandboxing and notarization
One-time purchase with free updates, never a subscription or per-track fee
30-day money-back guarantee on all purchases
Based on peer-reviewed research from 2009 ACM Multimedia & Security Workshop
Works with existing DJ workflows including Rekordbox, Traktor and VirtualDJ
No sign-up or account needed to use
Reverse singing mode lets you record your attempt and hear it flipped back
Compare original and reversed side-by-side with dual players
Extract audio from short videos without reversing or exporting the video itself
Spectro
Reverse Audio