Modulate launches an AI music detection API as platforms face 75,000 AI uploads a day
Modulate, a Boston audio-intelligence company, launched an AI Music Detection API that flags AI-generated vocals and instruments straight from the audio. It does not lean on metadata or on what a creator says about a track. The launch, first surfaced by Hypebot, lands as streaming services drown in machine-made uploads. Deezer alone now takes in roughly 75,000 fully AI-generated tracks a day.
How Modulate’s AI music detection works
Modulate runs two separate models, one for vocals and one for instruments, and scores each 4-second window of a song on its own. So a track with an AI vocal over a human beat, or AI instruments under a real singer, still gets caught. Every response returns a clip-level verdict plus per-window confidence numbers.
You can send a full file (batch) or stream audio over a WebSocket for real-time verdicts. Supported formats include MP3, WAV, FLAC, M4A, and OGG, up to 100 MB. Thresholds are tunable, so a platform can dial precision against recall without retraining the models.
Why detection matters now
Platforms, distributors, and rights groups face one practical question: is a track human, AI, or a mix? Deezer built its own detection system and flags AI uploads at scale. SoundOn and ACRCloud paired up on fraud detection. Modulate is selling the same capability as an API any platform can wire in.
The stakes are money and trust. AI tracks can drain royalty pools meant for human artists, and listeners increasingly want to know what they are hearing. Spotify has added AI disclosure toggles and labels. Detection is the layer underneath those labels, the part deciding what gets flagged in the first place.
Frequently asked questions
What is Modulate's AI Music Detection API?
An API from Boston company Modulate that identifies AI-generated vocals and instrumental music directly from an audio file. It returns a clip-level verdict plus per-window confidence scores, and runs in batch or real-time streaming.
How does Modulate detect AI-generated music?
It runs two independent models, one for vocals and one for instruments, scoring each 4-second window separately. That lets it catch hybrid tracks where AI was used for only part of the song, like an AI vocal over a human beat.
What audio formats does Modulate's AI Music Detection API support?
Batch detection accepts AAC, FLAC, M4A, MP3, MP4, OGG, OPUS, and WAV files up to 100 MB. A WebSocket streaming option returns per-window vocal verdicts as the audio arrives, with the final clip-level verdict at the end.
Why do streaming platforms need AI music detection?
Tens of thousands of AI tracks are uploaded daily (Deezer reports about 75,000), and they can siphon royalties and mislead listeners. Detection lets platforms label, demote, or demonetize AI uploads without relying on creator disclosures.
About the author
Covering AI music tools, industry shifts, and news for music creators and professionals. Twice-weekly newsletter at aimusicpreneur.com.
