your stash
open stash ↗Stash an album or song from a tape. It stays in this browser without signing in.
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analysis / select a track
written report / this recording
Written in this browser. Download to keep the report and raw data. Private raw analysis remains in your history.
Vocal processing score
—/ 100 · experimentalHigher = fewer measured tuning/edit cues in usable pitch. 100 does not mean 100% free of AI or computer assistance.
Click a window or cue to seek. Hatched = insufficient usable pitch.
score method & limits
Checks compare the isolated vocal view with the original mix. Natural singing, instruments, recording glitches and separation bleed can look similar. Subtle tuning, comping, time stretching, mastering and exact plugin names remain unknown. This is an acoustic index, not a probability or percentage of authorship.
0–1 signal · higher = stronger synthetic signal. No AI/human verdict.
Click a window to seek. Hatched = not scored.
what does this score mean?
SONICS compares audio with patterns learned from human and synthetic songs. This is the duration-weighted average of scored five-second windows, with skipped audio excluded.
It is not a probability, a percentage of AI authorship, or a measure of plugin use. A high window score does not prove that region was AI-created; a low score does not prove human origin. This model has no validated Demotapes decision threshold.
production evidence / origin undetermined
| component | evidence | finding |
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file info / not inspected
Reads the received file locally. Editable software tags may describe an export or provider transcode, not the song's production history.
lyrics
Text evidence only. Not validated on song lyrics; transcription errors and repeated choruses can affect results.
tape access & deletion
Password-protected tapes check access on every media request and keep source URLs private. Revoke access to keep files in your editor, or delete this tape and its Demotapes-hosted audio, versions, stems, artwork, analysis and notes.
Already downloaded or buffered copies, external source files and third-party preview caches cannot be recalled. Provider backups follow their retention policies. Deletion stays pending until active processing and previously issued upload URLs have finished.