We provide audio watermarking and acoustic fingerprinting technologies for a broad range of commercial and professional applications related to content protection, piracy prevention, digital licensing, music recognition, monitoring, signaling, and synchronization.
Choose the use case that is closest to the problem you need to solve, and we can help you identify the most suitable technology or product.
Digital licensing and digital delivery for audio & music distribution, selling audiobooks, music promo sharing, etc.
Sharing audio files, even privately, always carries the risk of leaks, unauthorized redistribution, and lost revenue. |
Embed a unique, inaudible digital signature into every distributed file copy so each recipient receives a traceable version. If leaked content appears in public, the watermark can be extracted to identify the original recipient. Because the watermark is distributed throughout the recording, it can still be recovered from short excerpts and fragments. Share traceable copies instead of unprotected files. |
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Recommended solutions: license one of our core audio watermarking products (AWT1, AWT2, AWT5) or use the online delivery platform at TrustedAudio.com. Please contact us for details and advice. |
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Audio authenticity and proof of authorship & ownership
Audio creators and rights holders often face unauthorized use of their work and difficulty proving authorship, ownership, or provenance. |
Watermark audio before distribution by embedding an inaudible signature carrying authorship, ownership, recipient, or provenance data. In parallel, use acoustic fingerprinting and a large song fingerprint database to identify what track is playing and monitor single or multiple radio stations or other streams. |
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Recommended solutions: license one of our core audio watermarking products (AWT1, AWT2, AWT5) or use TrustedAudio.com for secure delivery. For recognition and monitoring, AudioTag.info provides a web-based and API-accessible music recognition service based on a database of millions of songs. You can also license the underlying AFT technology and, optionally, a ready-to-use song fingerprint database for your own service. Please contact us for details and advice. |
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Audio authenticity, AI-generated audio disclosure, and EU AI Act compliance
In the AI era, audio can be generated, cloned, or manipulated at scale. Rights holders, media companies, platforms, studios, and enterprises increasingly need reliable ways to prove that audio is authentic, identify whether it was AI-generated, and disclose synthetic or manipulated content in a clear and compliant manner. |
Audio watermarking can be used to embed persistent, machine-detectable provenance and authenticity data directly into audio. This makes it possible to mark human-created recordings, watermark AI-generated audio at the point of creation or distribution, support disclosure workflows for synthetic or manipulated content, protect voice and music assets against misuse, and strengthen traceability across publishing, licensing, moderation, and platform operations. |
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Recommended solutions: consider licensing our core audio watermarking technologies AWT2 or AWT5, depending on your workflow and distribution channel. Typical applications include proof of authenticity by human authors, watermarking of AI-generated audio, voice-clone and synthetic media labeling, platform-level provenance tracking, and support for EU AI Act transparency and disclosure requirements. Please contact us for details and advice. |
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Music recognition in live broadcasts or files
Monitor radio airplay, identify which music is playing, and build accurate song charts and reports. |
Use acoustic fingerprinting together with a worldwide song fingerprint database to identify tracks in real time or from recordings. Monitor one or many radio stations and other audio streams with scalable automated matching. |
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Recommended solutions: AudioTag.info provides music recognition through a web interface and API. Alternatively, license the underlying AFT technology and build your own recognition or monitoring service. A ready-to-use song fingerprint database is also available under license. Please contact us for details and advice. |
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Protection of sensitive audio recordings (phone calls, clinic visits, etc.)
Private recordings such as phone calls, clinic visits, court proceedings, and other sensitive audio assets must be handled with strong traceability and control. A leak can cause irreversible damage. |
Watermark every shared copy with a unique, inaudible signature linked to the recipient and recording metadata. Because the watermark is distributed throughout the recording, it can still be recovered from fragments if the content is leaked, redistributed, or otherwise disclosed without authorization. |
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Recommended solutions: consider licensing one of our core audio watermarking products (AWT1, AWT2). Please contact us for details and advice. |
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Monitoring of airplay (e.g. commercials, music, etc.)
Provide advertisers, agencies, or rights holders with reliable airplay information, accurate timecodes, channel attribution, counts, and cross-channel statistics. |
Use real-time acoustic fingerprinting to match against your own database of monitored content such as commercials, songs, or other recordings. This provides detailed timecoded statistics across one or many channels. Alternatively, use audio watermarks to embed inaudible identifiers and monitor broadcasts with automated watermark listeners in real time. |
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Recommended solutions: consider licensing our flagship audio watermarking technologies AWT5 or AWT2, or our acoustic fingerprinting technology AFT. |
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Live broadcast protection
Live broadcast material such as radio or TV programming can be recorded and redistributed without authorization. |
Watermark live broadcasts in real time with a unique, inaudible signature carrying information about the content, rights holder, authorship, copyright, or intended destination. |
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Recommended solutions: consider licensing our flagship audio watermarking technologies AWT2 and AWT5. |
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Interactive and event-based experiences, signaling and second screen sync over sound.
Audience interaction, second-screen experiences, product activation, and other data-over-sound applications require short digital codes to be transmitted through audio content, either over digital channels or over the air. |
Inaudible digital identifiers ("trigger codes") can be embedded into audio in the audible range or transmitted in the ultrasonic range in order to trigger events on the listening side - for example on a mobile phone, web browser, media player, or other receiving device. |
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Recommended solutions: consider licensing AWT5 for over-the-air signaling and triggering applications. Please contact us for details and advice. |
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Time synchronization through audio stream time-stamping
Precise time alignment is critical in many workflows. One example is interactive TV, where a participant's smartphone must stay synchronized with broadcast audio despite different delivery latencies across cable, satellite, streaming, or terrestrial channels. |
Watermark the audio stream with timestamps that carry stream time. This allows listening devices to detect and synchronize accurately with the playback source by decoding those timestamps from the audio itself. As the playback device emits the watermarked stream, the receiving device extracts the embedded timing information and aligns itself with the source timeline. |
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Recommended solutions: consider licensing AWT5. Please contact us for details and advice. |
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Acoustic de-duplication
Large audio libraries and archives are difficult and expensive to manage when they contain duplicates or acoustically equivalent copies. |
Use acoustic fingerprinting and matching to detect recordings that are acoustically identical or highly similar, even when they are not bit-identical at the file level. This makes it possible to identify duplicates with high confidence, keep only unique recordings, and reduce storage overhead and management cost. |
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Recommended solutions: consider licensing our core audio fingerprinting technology AFT. Please contact us for details and advice. |
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Have another type of use-case not listed above?
Please email us with a description of your specific use case and we will recommend the most suitable solution.


