Audio watermarking and fingerprinting use cases
Our audio watermarking and acoustic fingerprinting technologies serve a broad range of commercial and professional applications: content protection, leak tracing, digital licensing, authenticity, music recognition, monitoring, signaling, and synchronization.
Find the use case closest to your needs below. If you are unsure which technology fits best, contact us and we will help you choose.
- AI-generated audio & EU AI Act
- Leak tracing in digital delivery
- Proof of authorship
- Music recognition
- Sensitive recordings
- Airplay monitoring
- Live broadcast protection
- Second-screen & data over sound
- Time synchronization
- Acoustic de-duplication
AI-generated audio: authenticity, disclosure, and EU AI Act compliance
Audio can now be generated, cloned, or manipulated at scale. Since 2 August 2026, the EU AI Act (Article 50) requires providers of AI systems that generate synthetic audio to mark the output in a machine-readable format so that it is detectable as artificially generated. Rights holders, media companies, and platforms also need reliable ways to prove that audio is authentic.
Watermarking embeds persistent, machine-readable provenance data directly into the sound. Mark AI-generated or voice-cloned audio at the moment of creation, detect the mark automatically later — even after compression, editing, or broadcast — and mark human-created recordings as authentic.
Recommended: AWT2 for files and streams, or AWT5 when the audio may be broadcast or played through loudspeakers. Read more about the EU AI Act and AI audio watermarking →
Leak tracing in digital delivery: music, audiobooks, promos, and licensed content
Every file you share — even privately with partners, reviewers, or customers — can leak, be redistributed without permission, and cost you revenue.
Give every recipient a uniquely watermarked copy. The inaudible watermark carries the recipient's ID, so if the content surfaces online, extracting the watermark identifies the source of the leak. The watermark is spread throughout the recording and can be recovered even from short excerpts.
Recommended: AWT2, AWT5, or AWT1 for integration into your own platform, or TrustedAudio.com as a ready-to-use watermarked delivery service. Ask for details →
Proof of authorship and ownership
Creators and rights holders often find their work used without permission and struggle to prove authorship, ownership, or origin.
Before distribution, embed an inaudible watermark carrying authorship, ownership, or provenance data — evidence that travels with the audio wherever it goes. In addition, acoustic fingerprinting can show where your recordings are played, for example by monitoring radio stations and streams against a fingerprint database of your catalog.
Recommended: AWT2, AWT5, or AWT1 for watermarking, or TrustedAudio.com for secure delivery. For monitoring, use AudioTag.info (web and API, millions of songs) or license AFT, optionally with a ready-to-use song fingerprint database. Ask for details →
Music recognition in live broadcasts and files
Radio stations, chart providers, and rights organizations need to know which music is playing — in live broadcasts or in recorded files — to build accurate playlists, charts, and reports.
Acoustic fingerprinting identifies tracks by their sound alone, by matching them against a large song fingerprint database. It works in real time on live streams and offline on files, and scales from a single station to many.
Recommended: AudioTag.info (web interface and API), or license AFT to build your own recognition or monitoring service. A ready-to-use song fingerprint database is available under license. Ask for details →
Protection of sensitive recordings: phone calls, medical consultations, legal proceedings
Recordings of phone calls, medical consultations, court proceedings, and other confidential audio must be shared under strict control. A single leak can cause irreversible damage.
Watermark every shared copy with an inaudible signature linked to the recipient and the recording. If a copy is leaked or disclosed without authorization, the watermark — recoverable even from fragments — reveals who received it.
Recommended: AWT2 or AWT1. Ask for details →
Airplay monitoring: commercials, music, and other content
Advertisers, agencies, and rights holders need reliable proof of airplay: what was aired, when, on which channel, and how often.
Real-time acoustic fingerprinting matches broadcasts against your own database of monitored content (commercials, songs, jingles) and produces timecoded statistics across one or many channels. Alternatively, embed inaudible watermark identifiers into the content before broadcast and detect them automatically with real-time watermark listeners.
Recommended: AWT5 or AWT2 for watermarking, or AFT for fingerprinting. Ask for details →
Live broadcast protection
Live radio and TV programs can be recorded and redistributed without authorization.
Watermark the live signal in real time with an inaudible signature identifying the content, rights holder, broadcaster, or distribution channel, so that unauthorized copies can be traced back to their source.
Recommended: AWT2 or AWT5. Ask for details →
Interactive experiences, second-screen sync, and data over sound
Audience interaction, second-screen experiences, product activation, and other data-over-sound applications need to transmit short digital codes through audio — over digital channels or through the air, from a loudspeaker to a microphone.
Embed inaudible trigger codes into the audio in the audible range, or transmit them in the ultrasonic range. A phone, web browser, media player, or other device listening to the audio decodes the code and triggers the corresponding action.
Recommended: AWT5. Ask for details →
Time synchronization via audio timestamps
Many applications need precise time alignment between devices. In interactive TV, for example, a viewer's smartphone must stay in sync with the broadcast, even though cable, satellite, streaming, and terrestrial channels all have different delays.
Embed timestamps carrying the stream time into the audio. The listening device decodes them from the sound it hears and aligns itself with the source timeline, regardless of the delivery delay.
Recommended: AWT5. Ask for details →
Acoustic de-duplication of audio libraries
Large audio libraries and archives often contain duplicate or acoustically identical copies in different formats or quality levels, which waste storage and complicate management.
Acoustic fingerprinting compares recordings by their sound rather than by their file contents, so it detects identical or near-identical recordings even when file formats, bitrates, or encodings differ. Keep the preferred version of each recording and remove the rest.
Recommended: AFT. For personal use, try the free AFT SonicDeCloner. Ask for details →
Have a use case not listed here?
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